ATLAS collaboration

ATLAS welcomes new member to its management team

The ATLAS Collaboration at CERN welcomes a new member to its management team. Martin Aleksa (CERN) joins as Technical Coordinator for the experiment, picking up the torch from Ludovico Pontecorvo (CERN).

29 February 2024

Meet the winners of the 2023 ATLAS Thesis Awards

The ATLAS Collaboration celebrated the achievements of its exceptional PhD students at the recent Thesis Awards ceremony. Established in 2010, the ATLAS Thesis Awards recognize the remarkable contributions made by students to the ATLAS Collaboration through their doctoral theses.

22 February 2024

In conversation with Ana Henriques Correia, a key player in the development of the ATLAS Calorimeter

Ana Henriques arrived at CERN in 1988 as a summer student, and never wanted to leave. She assumed the roles of technical coordinator and project leader of the ATLAS Tile Calorimeter, being involved in its design, construction, and installation processes.

30 January 2024

From internship to authorship: one student’s unique journey in ATLAS

Lukas Kretschmann, a physics student at the University of Wuppertal in Germany, shares his journey in the ATLAS Collaboration – which began as a high-school student!

30 October 2023

ATLAS Week: through the eyes of students

ATLAS Week is an opportunity for young physicists to present and discuss their work. ATLAS students Sarah and Bruna were at the last ATLAS Week in Vancouver, Canada, and share what the experience was like for them.

18 October 2023

A summer for science

For many students, a summer internship is a rite of passage — and a gateway to future jobs. Looking for a valuable glimpse into what a future in physics might hold, dozens of university students from around the world headed to CERN to participate in the Summer Student Programme and engage with cutting-edge scientific research at the ATLAS Experiment. With the support of their supervisors, these students have been deepening their knowledge of particle physics, engineering and computing through challenging projects. These are the stories of 12 of these students.

8 September 2023
8 September 2023

In conversation with Kevin Einsweiler, an instrumental voice in ATLAS upgrades

Kevin Einsweiler is a senior scientist at Lawrence Berkeley National Lab (LBNL). He joined the ATLAS Collaboration in 1993, playing an instrumental role in bringing US institutes into the LHC programme. He served as ATLAS Pixel Project Leader (2005-2009), Physics Coordinator (2011-2013) and Upgrade Coordinator (2014-2019).

6 March 2023

ATLAS management begins new term

The ATLAS Collaboration at CERN welcomes a new management team at its helm. Spokesperson Andreas Hoecker (CERN) will continue to steer the experiment until March 2025.

6 March 2023

Winners of the 2022 ATLAS Thesis Awards announced

Behind nearly every great ATLAS result lies an outstanding PhD student! Students are a key cohort of the ATLAS Collaboration, making critical contributions to the experiment while working on their degree. Every year, the Collaboration comes together to celebrate their work in the context of the ATLAS Thesis Awards.

20 February 2023

ATLAS celebrates 30 years of collaboration

The ATLAS Collaboration celebrated its 30th anniversary on 1 October 2022.

1 October 2022

Exceptional ATLAS collaborators honoured at the Outstanding Achievement Awards

The ATLAS Collaboration held the 6th Outstanding Achievement Awards Ceremony at CERN on 23 June 2022. Once every two years, these awards give recognition to the invaluable technical work made across the collaboration in all areas.

28 June 2022

And the ATLAS Thesis Awards go to…

Behind nearly every great ATLAS result lies an outstanding PhD student! Students are a key cohort of the ATLAS Collaboration, making critical contributions to the experiment while working on their degree. Every year, the Collaboration comes together to celebrate their work in the context of the ATLAS Thesis Awards.

8 March 2022

ATLAS without Frontiers

For several years, the ICTP Physics Without Frontiers (PWF) programme has been heavily involved with outreach activities to inspire, train and educate young and motivated physics students worldwide. Several members of the ATLAS Collaboration very active in this programme.

14 December 2021

Supporting talented students with the ATLAS PhD Grant

On 13 April 2021, the recipients of this year's ATLAS PhD Grant were celebrated in an online ceremony. These talented and motivated students will receive 1.5 years of funding for their studies at CERN, giving them the opportunity to enhance their doctoral studies in a one-of-a-kind research environment.

4 May 2021

In conversation with John Rutherfoord, a leading designer of the ATLAS Calorimeter

John P. Rutherfoord is a professor at the University of Arizona and a long-standing member of the ATLAS Collaboration. His extensive career has taken him from searching for the Upsilon particle at Fermilab to CERN to leading the design and development of the ATLAS Forward Calorimeter.

22 April 2021

Building community in virtual events

Since 2017, the ATLAS Early Career Scientist Board (ECSB) and Analysis Software Tutorial organisers have been teaming up to run a week-long introductory event for new ATLAS members. Induction Day welcomes new members to the collaboration by giving them an overview of the plethora of activities that take place within the ATLAS Collaboration.

20 April 2021

ATLAS: now under new management

The ATLAS Collaboration welcomes new management this month, with Andreas Hoecker (CERN) taking the lead as Spokesperson for the experiment.

2 March 2021

Planning an event during a pandemic

At the ATLAS Early Career Scientist Board (ECSB), we have also had to adapt in order to best represent and assist the early career scientists in our collaboration. One of the biggest changes was moving all of our events in the second half of 2020 to be entirely virtual.

19 February 2021

Students step into the limelight: ATLAS awards excellent PhD theses

ATLAS PhD students are a key cohort of the Collaboration, making unique and crucial contributions to the experiment while working on their degree. Every year, their work is celebrated in the context of the ATLAS Thesis Awards.

17 February 2021

ATLAS recognises the outstanding achievements of Collaboration members

The 2020 ATLAS Outstanding Achievement Awards ceremony was held online on 11 February 2021. Established in 2014, the awards recognise outstanding contributions in support of the ATLAS experiment, covering all areas except physics analysis.

16 February 2021

Connecting during COVID-19: Updates from the (physically but not socially distanced) Early Career Scientist Board

As a community, we need to stay in contact, remain motivated and learn from each other's experiences. The work-from-home situation is one to which everyone has to adjust, balancing personal and professional lives, while accepting the effect of the ongoing pandemic on society. Despite these challenges, the ATLAS Early Career Scientist Board (ECSB) developed a series of events to boost the morale of the ECS community and to help people connect, even when they are sitting miles away from each other. I joined the ATLAS ECSB in March 2020, and to be honest, it has felt great to be a part of something that makes a difference in people’s lives – even if it’s just to laugh together.

1 July 2020

In conversation with Claudia Gemme, an influential voice in ATLAS detector upgrades

Claudia Gemme, researcher at INFN in Genova, has had a varied career with the ATLAS Collaboration. From her work on the construction and commissioning of the ATLAS Pixel detector, to a career in physics analysis and the ATLAS Publication Committee, she now leads a key upgrade of the ATLAS detector: the ATLAS Inner Tracker (ITk).

15 June 2020

ATLAS Collaboration enters active “Safe Mode”

The global health crisis caused by COVID-19 has impacted every aspect of life. Much of the world’s population are sheltering in place, with ATLAS Collaboration members similarly affected.

2 April 2020

ATLAS PhD Grant continues its support of up-and-coming talents

At an award ceremony in the Globe of Science and Innovation, the ATLAS Collaboration celebrated the new recipients of the ATLAS PhD Grant: Prajita Bhattarai, Hassnae El Jarrari and Albert Kong.

11 March 2020

Serving up new winter recipes with the ATLAS Early Career Scientist Board

In 2019, I joined the ATLAS Early Career Scientist Board (ECSB): a special advisory group dedicated to assisting the ATLAS Collaboration in building an environment where the full scientific potential of scientists at the start of their career can be realised. The board organises several activities for the ATLAS community (you may have seen all of our summer activities described in this blog). I was actively involved in the winter activities. They were all fantastic experiences to improve social relationships in a 5000-people collaboration.

28 February 2020

In conversation with Philippe Farthouat, a driving force behind ATLAS electronics

Philippe Farthouat has played a critical role in electronics development since the beginning of ATLAS, from design and prototyping to testing and installation. He has been the overall ATLAS electronics coordinator since 1999.

14 January 2020

In conversation with Masaya Ishino, a key player behind ATLAS' successful Run 2

Masaya Ishino is a researcher and professor with the University of Tokyo. He joined the ATLAS Collaboration in 2001, and has been instrumental to the development, construction and operation of the muon spectrometer. Masaya was elected ATLAS Run Coordinator in 2017, playing a key role in the record-breaking Run 2 operation.

7 October 2019

New ATLAS members, welcome on board

This summer was rich with events regularly organised by the ATLAS Early Career Scientists Board (ECSB): Induction Day, Career Q&A and the Ice Cream event. The ECSB is a special advisory group dedicated to assisting the ATLAS Collaboration in building an environment where the full scientific potential of young scientists can be realised. It consists of seven early career scientists, representing various career levels, nationalities, genders and home institutions. I have been in the thick of things as a new member of the ECSB and had a lot of new experiences. Each event was full of fantastic people and brought to its participants tonnes of useful information.

18 September 2019

In conversation with Zachary Marshall, a leading voice in the search for new physics

Simulation and supersymmetry, two things that have defined Zachary Marshall’s career. Zach is a researcher with Lawrence Berkeley National Lab. He is currently the co-convener of the ATLAS Supersymmetry group, leading the team searching for supersymmetry and all its various manifestations, building on his previous work as convenor of the ATLAS Simulation group.

5 July 2019

ATLAS Management enters new term

The management of the ATLAS experiment begins a new term this Spring, with Spokesperson Karl Jakobs (University of Freiburg) continuing to steer the collaboration through Long Shutdown 2 to the start of Run 3 of the Large Hadron Collider (LHC).

25 April 2019

Celebrating the recipients of the 2019 ATLAS PhD Grant

At an award ceremony in the Globe of Science and Innovation, the recipients of the 2019 ATLAS PhD Grant were celebrated in the presence of CERN & Society donors and members of the ATLAS community. The ATLAS PhD Grant has supported up-and-coming talents in particle physics since 2014 and this year saw a new donor take up its cause.

29 March 2019

ATLAS honours six new Thesis Award winners

On Valentine’s Day 2019, the ATLAS Collaboration took a break from the usual rhythm of scientific discussion to showcase some of its most junior members. In a celebration in CERN’s Main Auditorium, the collaboration held its 10th annual ATLAS Thesis Awards.

22 February 2019

In conversation with Martine Bosman, a pioneer of ATLAS hadronic calorimetry

Martine Bosman is one of the pioneers behind the Tile Calorimeter. Over her long career with the Collaboration, she has held several key roles: from convenor of the Radiation Task Force and the Top Quark Group to Collaboration Board Chair.

26 November 2018

ATLAS celebrates “dedicated and creative” collaboration members with Outstanding Achievement Awards

On 11 October 2018, during its semestrial collaboration meeting at CERN, ATLAS celebrated outstanding achievements of its collaboration members with an awards ceremony. Established in 2014, the Outstanding Achievement Awards give recognition to excellent contributions made to the collaboration in all areas, excluding physics analysis.

15 October 2018

ATLAS Around the World: the faces behind the physics

“Multiculturalism” isn’t just a buzzword for ATLAS, it’s a way of life. With members of over 90 different nationalities – spanning every populated continent – ATLAS is a cultural experiment as much as it is a scientific one. Our new ATLAS Around the World series invites you to meet people from every nationality represented in the collaboration, to gain an insight into the individual journeys that brought them to particle physics. All are from very different backgrounds, but share the common goal of understanding our universe.

11 August 2018

In conversation with Nick Ellis, one of the architects of the ATLAS trigger

A long-standing member of the ATLAS Collaboration, CERN physicist Nick Ellis was one of the original architects of the ATLAS Trigger. Working in the 1980s and 1990s, Nick led groups developing innovative ways to move and process huge quantities of data for the next generation of colliders. It was a challenge some thought was impossible to meet. Nick currently leads the CERN ATLAS Trigger and Data Acquisition Group and shared his wealth of experience as a key part of the ATLAS Collaboration.

10 June 2018

Waiting for physics: Splashing beams

Each year, around mid-spring, the giant LHC accelerator wakes up from its winter maintenance and gets ready for a new feverish period of data taking. But before smashing protons once again, some tests have to be done, to check that everything is in order and that the machine can accelerate and collide particles properly, as it did before the shutdown.

10 May 2018

New winners of the ATLAS Thesis Awards

The ATLAS Collaboration has over 5500 members in 182 institutions around the globe. But, did you know that over 1000 of these members are PhD students? ATLAS PhD students contribute strongly and critically to all areas of the experiment, while learning valuable skills for their degrees.

27 February 2018

Behind the scenes at ATLAS Week

A few times a year, the large LHC collaborations such as ATLAS organise an internal overview session. This photo essay will take you to the most recent of these “ATLAS Weeks” – giving you a glimpse behind the curtain, and exploring this essential part of the collaboration structure and life.

6 November 2017

ATLAS LIVE: Celebrating 25 years of discovery

To celebration of its 25th anniversary, ATLAS is hosting a series of Facebook live events today, Monday 2 October 2017. Explore key locations around CERN - including the ATLAS control room, Building 40 and the ATLAS TileCal workshop - while learning about the physics, construction and history of the ATLAS Experiment.

2 October 2017

New management at the ATLAS Experiment

Karl Jakobs from the University of Freiburg is a familiar face at CERN and in the ATLAS Experiment. He’s been part of the collaboration since the signing of the ATLAS Letter of Intent in 1992, having taken on various coordination roles, and followed the experiment through all its phases. Now, after twenty-five years with the collaboration, Karl is moving into the main office as spokesperson.

3 March 2017

Award season at the ATLAS Experiment

From detector development to detailed searches for new physics, ATLAS PhD students publish dozens of outstanding theses every year. Since 2010, a few have been celebrated at the annual ATLAS Thesis Awards.

28 February 2017

Meet the talented recipients of the ATLAS PhD Grant

Motivated. Outstanding. Enthusiastic. These are the criteria used when selecting the recipients of the ATLAS PhD Grant. It’s a tough competition.

16 February 2017

Is there life after physics?

Am I going to dedicate my entire life to high-energy physics? Am I qualified to work in another field, if I wish to? These are questions we may ask ourselves as we near the end of a contract. On Tuesday 29 November, the four experiments, ATLAS, ALICE, CMS and LHCb, organized a meeting with some of their former physicists who had decided to take the plunge into the business world.

2 December 2016

ATLAS awards outstanding achievement

The 2016 ATLAS Outstanding Achievement Awards ceremony was held at CERN on 20 October. Now in its third year, the awards give recognition to excellent contributions made to the collaboration, with an emphasis on activities carried out in the first year of Run 2.

24 October 2016

The many faces of research

Ever since the age of 10, as far as I remember, I have been fascinated by technical and natural sciences, especially physics. I loved building (and repairing) experiments or things. As a result, in high school I happily attended an advanced course in physics and continued my studies at RWTH Aachen University (Germany).

17 October 2016

An exceptional summer

For many students, summer means sun and beach volleyball. For some, though, it is an opportunity to learn at ATLAS! Thanks to CERN’s Summer Student Programme, every year dozens of university students come to ATLAS to spend their holidays in this unique environment. During these three months they alternate between lectures and work, always supported by their supervisors. This summer, ATLAS hosted 50 students from 31 different countries. Here are some of their stories.

30 August 2016

ICHEP results presented with style!

For those of you with an affinity for Twitter, you’ll know that the ICHEP press crew have been utilising all of their dark arts to bring you the most interesting results as they’re presented at ICHEP 2016.

8 August 2016

Spring celebrations in Pisa as the LHC restarts

PP@LHC is an Italian conference with important contributions by foreign institutes, focused on the proton-proton physics performed at the LHC by the ATLAS, CMS and LHCb experiments. The aim of this year’s edition was not only to give an overview on the current status of LHC research, but to focus on future challenges with the upcoming new data.

31 May 2016

One does not simply give a talk at Moriond

The third day of the Moriond QCD conference was dedicated to quantum chromodynamics (QCD), the theory that describes strong interactions itself.

5 April 2016

Meet 7 inspiring women from the ATLAS experiment

Women play key roles in the ATLAS Collaboration: from young physicists at the start of their careers to analysis group leaders and spokespersons of the collaboration. Celebrate International Women’s Day by meeting a few of these inspiring ATLAS researchers.

8 March 2016

ATLAS announces Thesis Award winners

On 25 February 2016 in CERN's Main Auditorium, the ATLAS collaboration announced the winners of the 2015 ATLAS Thesis Awards: Javier Montejo Berlingen, Ruth Pöttgen, Nils Ruthmann, and Steven Schramm. The winners were selected by the ATLAS Thesis Awards Committee for their outstanding contributions to the collaboration in the context of a PhD thesis. A total of 33 nominations were received, all of a very high standard and encompassing major achievements in all areas of ATLAS results and activities.

3 March 2016

Recipients of the ATLAS PhD Grant announced

Three young physicists – Ruth Jacobs, Artem Basalaev and Nedaa B I Asbah – have been named the recipients of the 2015 ATLAS PhD Grant.

26 February 2016

The hills are alive, with the sound of gravitational waves

It’s 16:00 CET at CERN and I’m sitting in the CERN Main Auditorium. The room is buzzing with excitement, not unlike the day in 2012 when the Higgs discovery was announced in this very room. But today the announcement is not from CERN, but the LIGO experiment which is spread across two continents. Many expect the announcement to be about a discovery of gravitational waves, as predicted by Einstein in 1916, but which have remained elusive until today…

15 February 2016

ATLAS completes first year at 13 TeV

As 2015 draws to a close, the ATLAS experiment wraps up its first phase of operation at a record-breaking energy frontier.

16 December 2015

Lepton Photon 2015: Into the dragon’s lair

This was my first time in Ljubljana, the capital city of Slovenia – a nation rich with forests and lakes, and the only country that connects the Alps, the Mediterranean and the Pannonian Plain. The slight rain was not an ideal welcome, but knowing that such an important conference that was to be held there – together with a beautiful evening stroll – relaxed my mind.

29 August 2015

Q&A with EPS Outreach Award-Winner Kate Shaw

ATLAS Outreach Co-coordinator Kate Shaw has been awarded the 2015 European Physical Society (EPS) Outreach prize "for her contributions to the International Masterclasses and for her pioneering role in bringing them to countries with no strong tradition in particle physics".

12 August 2015

From ATLAS Around the World: Brief history of Morocco in ATLAS

In 1996, Morocco officially became a member of the ATLAS collaboration. The eagerly awaited day had finally arrived, and the first Arabic and African country signed a collaborative agreement with CERN to participate in the great scientific adventure of particle physics.

31 July 2015

From ATLAS Around the World: Triggers (and dark) matter

To the best of our knowledge, it took the Universe about 13.798 billion years to allow funny looking condensates of mostly oxygen, carbon and hydrogen to ponder on their own existence. Some particularly curious specimens became scientists, founded CERN, dug several rings into the ground near Geneva, Switzerland, built the Large Hadron Collider, and also installed a handful of large detectors along the way.

27 July 2015

From ATLAS Around the World: Working with silicon in Japan

I joined the ATLAS experiment in 2012 after graduating from the University of Tokyo, however my previous experience was completely different from collider physics. During my Master’s course, I focused on the behaviour of a kind of silicon detector operated in Geiger mode. At that time, the experiments at CERN looked like a “castle” to me.

3 July 2015

ATLAS awards Long Shutdown 1 achievements

The ATLAS Outstanding Achievement Awards 2015 were presented on 18 June to 26 physicists and engineers, in 11 groups, for their excellent work carried out during Long Shutdown 1 (LS1).

25 June 2015

From ATLAS Around the World: Faster and faster!

Faster and Faster! This is how it gets as soon as LS1 ends and the first collisions of LHC Run 2 approaches. As you might have noticed, at particle physics experiments we LOVE acronyms! LS1 stands for the first Long Shutdown of the Large Hadron Collider.

24 June 2015

Impressions from the control room

As final preparations were made for the start of the Large Hadron Collider's (LHC) Run 2, the ATLAS Control Room was the centre of activity. Here are images from the three days that were landmark events...

17 June 2015

From ATLAS Around the World: The oldest observer state of CERN is no longer just observing!

If you have ever been to a bazaar in Turkey, you would know that you have to bargain hard and you have to carefully examine what you buy. Sometimes this attitude goes way too far. In our case about half a century… Turkey had been an observer state of CERN since 1961 but as of 6 May 2015.

26 May 2015

From ATLAS Around the World: First blog from Hong Kong

Guess who ATLAS’ youngest member is? It’s Hong Kong! We will be celebrating our first birthday in June, 2015. The Hong Kong ATLAS team comprises members from The Chinese University of Hong Kong (CUHK), The University of Hong Kong (HKU) and The Hong Kong University of Science and Technology (HKUST), under the the Joint Consortium for Fundamental Physics.

19 May 2015

From ATLAS Around the World: African horizons

It’s great being back at CERN and being able to immerse myself in the tangible atmosphere of excited anticipation for the first collisions at 13 TeV this June. I am a South African, usually based in Durban — a city currently afflicted with xenophobically motivated riots and rolling blackouts. Being at CERN is really a different world right now, to a greater extent than usual.

8 May 2015

From ATLAS Around the World: A view from Down Under

While ATLAS members at CERN were preparing for Run 2 during ATLAS week, and eagerly awaiting the beam to re-circulate the LHC, colleagues “down under” in Australia were having a meeting of their own. The ARC Centre of Excellence for Particle Physics at the Terascale (CoEPP) is the hub of all things ATLAS in Australia.

16 April 2015

From ATLAS Around the World: Preparing for Run 2 from Colombia

After a two-year stay at CERN, I moved back to Colombia in 2012. Being involved in ATLAS and working from Colombia has been a great experience for me; I get to continue contributing to the physics searches and also do other things like teaching, giving seminars, and doing outreach activities.

9 April 2015

ATLAS physicist wins L'Oreal-UNESCO Women in Science award

Rajaâ Cherkaoui El Moursli is one of the five laureates of the L'Oreal-UNESCO for Women in Science Awards this year.

12 March 2015

Winners of the ATLAS Thesis Awards announced

Six PhD students were announced as the winners of the ATLAS Thesis Awards 2014 from 28 nominations received. The winners – Andrew Chisholm, Kun Liu, Marcus Morgenstern, Priscilla Pani, Dennis Perepelitsa, and James Saxon – were given certificates and an engraved glass model of the ATLAS detector during a ceremony on 19 February 2015 at CERN, Geneva.

27 February 2015

Second ATLAS PhD Grants

The recipients of the second ATLAS PhD Grant were announced last week. The three young ATLAS physicists – Danijela Bogavac, Silvia Fracchia, and Declan Millar – were given certificates at a small ceremony at CERN, Geneva.

23 February 2015

The Ties That Bind

A few weeks ago, I found myself in one of the most beautiful places on earth: wedged between a metallic cable tray and a row of dusty cooling pipes at the bottom of Sector 13 of the ATLAS Detector at CERN. My wrists were scratched from hard plastic cable ties, I had an industrial vacuum strapped to my back, and my only light came from a battery powered LED fastened to the front of my helmet. It was beautiful.

15 January 2015
15 January 2015

The ATLAS experiment on Scholarpedia

An overview of the ATLAS experiment written by physicists Monica Dunford and Peter Jenni has been published on Scholarpedia. The article is the first in the series on experimental high-energy physics that the editors of the subject hope to host on the website.

3 December 2014

ATLAS Awards Achievements in Run 1

The ATLAS Outstanding Achievement Awards 2014 were given on 9 October to five individuals or teams of physicists and engineers for their contributions during the Large Hadron Collider's first run in all areas of ATLAS except physics analyses.

21 October 2014

Doing Physics in Vietnam

One of the perks of working in our field is the opportunities we get to go to exotic places for conferences. I always felt the HEP-MAD conference in Madagascar would top this list, but the one some of us went to in Vietnam can't be too far behind. The Rencontres du Vietnam conference series has been organised in the coastal town of Quy Nhon since 2011, covering different physics topics. This year, one of them was titled Physics at the LHC and Beyond, where I had the privilege of presenting ATLAS soft QCD results.

7 October 2014

ATLAS Physicist Wins Young Scientist Prize

For her contribution toward the discovery of the Higgs boson, Kerstin Tackmann was awarded the Young Scientist Prize in Particle Physics 2014 by the International Union of Pure and Applied Physics.

21 August 2014

Music of the "LHC"

The ATLAS & CMS experiments celebrate the second anniversary of the discovery of the Higgs boson. Here, are some images of the path from the LHC's startup to the Nobel Prize, featuring a musical composition by Roger Zare, performed by the Donald Sinta Quartet, called 'LHC'. Happy Discovery Day!

4 July 2014

Second anniversary of the Higgs boson discovery!

It’s been two years since the ATLAS and CMS experiments at CERN jointly announced the discovery of a new boson consistent with the Higgs particle of the Standard Model. Since then, the Higgs boson has been intensely examined. We’ve measured its spin, its mass, its lifetime, and observed its decay into bosons and fermions. In the next run of the Large Hadron Collider, we hope to learn more about how it interacts with other particles and to make many more precise measurements of its properties. By doing, we hope to extend the limits of our current understanding of the fundamental components of nature, and to seek clues for discovery.

4 July 2014

Five Outstanding Students Win ATLAS Thesis Awards

The ATLAS Thesis Awards recognize some of our postdoctoral colleagues who have made exceptional contributions to the experiment, across all areas, in the context of a PhD thesis.

25 February 2014

ATLAS PhD Grant Scholars Announced

The first recipients of the ATLAS PhD Grant were presented with a certificate on 11 February at CERN by the programme’s selection committee. The three scholars, Lailin Xu of China, Josefina Alconada of Argentina, and Gagik Vardanyan of Armenia, were delighted at being able to continue their PhD programmes at CERN.

13 February 2014

A Few Missing Steps

After a long hiatus from US ATLAS, I recently started a new job at the Lawrence Berkeley National Laboratories. It's one of the few remaining labs in the US funded by the Department of Energy that does basic science research. It's the fourth job I've had in four years, all working on ATLAS, and all working on similar projects. This one is different, though: if I pass a performance review a few years from now, I'll have the lab-equivalent of tenure. I've had reactions ranging from "who did you have to kill to get that job" to "so who did you actually talk to to land that"?

7 August 2013

New Results for EPS

ATLAS physicists will be presenting new results at the biennial Europhysics conference on High Energy Physics this year. The conference, which will take place 18 to 24 July in Stockholm, Sweden, is organized by the High Energy and Particle Physics Division of the European Physical Society (EPS).

16 July 2013

Everyone Here Is Motivated By Physics

In June 1993, ATLAS and CMS were given the provisional go-ahead to submit technical proposals. Twenty years later, for the discovery of the Higgs boson, the European Physical Society has awarded the High Energy and Particle Physics Prize 2013 to the research teams of the ATLAS and CMS experiments. For their “pioneering and outstanding leadership roles in the making” of the experiments, the prize also goes to ATLAS' Peter Jenni and CMS' Michel Della Negra and Tejinder Virdee. We talked to Peter Jenni, who was spokesperson of the ATLAS collaboration for the first 15 years, on ATLAS' past and future.

17 June 2013

2012: A Year for Science – A Year for Discovery

Amazing, incredible, emotional. These are uncommon words for summarizing the annual accomplishments of a particle physics experiment. Yet 2012 has been a fantastically uncommon year for ATLAS, one of the main experiments at CERN: marvellous machine performance, numerous and interesting physics results, plenty of interactions with students and general public, and - last but not least - a major discovery!

20 December 2012

Happy Birthday ATLAS!

Twenty years ago the name “ATLAS” was first used on an official document, the Letter of Intent, to refer to the detector which has been taking data for nigh on three years now, including those data on which the recent Higgs results were based. It has been two decades of growth, development and hard work, resulting in this year’s observation of a Higgs-like particle. All the more reason for the experiment to take a few moments to look back and celebrate.

29 September 2012
29 September 2012

Melbourne Dispatch: A First Coming To Terms with Discovery

Where to begin? The 4th of July, 2012 will remain burned in the memories of those of us fortunate to be delegates at this historic 36th International Conference on High Energy Physics (#ICHEP2012) in beautiful Melbourne, Australia.

9 July 2012

Very exciting day at CERN about the Higgs??!

Good morning science addicts and everyone! What a special day at CERN today! Indeed, the ATLAS and CMS experiments have just released some outstanding results and observations about the search for the Higgs boson, and the ATLAS and CMS spokespersons (Fabiola Gianotti, and Joe Incandela) just presented those results in the main auditorium at 9 a.m (CERN time).

4 July 2012

Tweeting live #Higgs boson updates from #CERN

“If it’s just a fluctuation of background, it will take a lot of data to kill.” Dr. Fabiola Gianotti, spokesperson for the ATLAS collaboration, made this statement on Dec. 13, 2011 during a special seminar I attended at CERN. Within the minute that followed, I hurriedly concocted a tweet, tacked on #Higgs and #CERN hashtags, and sent Fabiola’s weighty comment out onto the WWW.

11 February 2012

Top down: Reflections on a long and sleepless analysis journey

For the last months (which feel like years…) I’ve been working, within a small group of people, on the precision measurement of the top quark pair production cross section, and if you think that sounds complicated – the German word is “Top-Quark-Paarproduktionswechselwirkungsquerschnitt”.

21 August 2011

Martin Rybar

There is usually a defining moment, or event, that leads a person to science. For 10 year old Martin Rybar, it was the moment when he found the chemistry laboratory kit from his uncle in his parents' house. Curiosity has always been the main driving force in science – and Martin was no exception.

15 December 2010
15 December 2010

Takanori Kono

There are many paths into science and one that might have played a key role for Takanori Kono could be LEGO bricks. Maybe it is the segmented approach learned from playing with those bricks that helped him later on tackle computer programming. It is easier to break down any problem into smaller chunks, seeing how it is put together as though it were made from basic building blocks.

1 November 2010
1 November 2010

Frederick Luehring

“That's one small step for man, one giant leap for mankind,” we all remember Neil Armstrong saying while taking his first steps on the moon. As so many, Fred Luehring was glued to the television set that 21st of June, 1969, but to him this event meant much more than to most.

4 October 2010

Bengt Lund-Jensen

“In Sweden you can go out dancing in the summertime, where they play popular music but adapted for dancing,” says Stockholm native Bengt Lund-Jensen. Nine years ago, he decided to re-visit the dances of his undergrad days in pursuit of fitness, and now he spends his summers stepping out with other Scandinavians in the midnight twilight.

27 July 2010

Pascal Pralavorio

“In a sense, life is never as you've foreseen it to be. This is also true for natural laws, and that's why I like to be a physicist so much,” Pascal Pralavorio says as he explains what makes discovery so interesting for him.

Pascal seems to have a trend flowing through his life: to strategise and plan, to accept the consequences of discovery, and to enjoy the ride. For him, to explore is everything. With such varied interests as physics, singing, and playing guitar, piano, and games of strategy, it is apparent that he has a love for the thinking process. Pascal enjoys what he encounters unexpectedly, and especially what stems from the toughest parts of problematic situations.

13 July 2010

Trevor Vickey

Going into his new position with Johannesburg's University of the Witwatersrand ('Wits' for short), Trevor Vickey sees his brief as “a sort of linear combination between a professorship and a Peace Corps assignment”. The tenure-track Senior Lecturer post will take him to a brand new continent, but, he says, he made the original application “on a whim” after five years as an ATLAS postdoc.

14 June 2010

Conversations on Shift

When the detector is running smoothly, neighbors in the ATLAS control room sometimes get conversational. A few days back I was on shift, quietly looking at plots on the monitor in front of me, trying to decide if one small sensor was misbehaving or not. “I have a question,” the shifter next to me said.

26 May 2010

Rachid Mazini

Rachid Mazini grew up in Casablanca, Morocco. Although he’s now a big fan of rugged terrain, he spent his youth as a “city boy” with holidays on the Atlantic shoreline. It wasn’t until he started university in Marrakech that he began to explore the mountains – the Atlas range, in fact.

13 April 2010
13 April 2010

Approaching the End...and a New Beginning

This Tuesday, if all goes according to plan, will mark the end of a very long journey for many High Energy Physicists. The first 7 TeV Collisions will signal the end of the the commissioning period of the LHC and its experiments.

28 March 2010

Rolf Seuster

For Rolf Seuster, there’s no place like Victoria, Canada. Located on Vancouver Island, about 90 km south of this year’s Winter Olympics, Rolf believes it’s one of the nicest places in the country. “It’s the size of Switzerland, and there’s maybe half a million people on the whole island,” he says.

22 February 2010
22 February 2010

François Butin

When the time came for François Butin to do his military service for France, he wasn’t interested in the armed forces. Instead, he chose to become a “cooperant”, working for a longer period in research or engineering. “In the old days, if you wanted to do your military service in an intelligent way, that was one of the good opportunities,” says François.

25 January 2010
25 January 2010

Attila Krasznahorkay

Attila Krasznahorkay has physics in his blood, the son of a nuclear physicist and a physics and math teacher. He was also introduced to the traveling life style at an early age, moving from his Hungarian homeland to Groningen in the Netherlands at eight years old when his father began work in the city’s university. His young, agile brain managed to pick up the Dutch language, but now, although he recalls the experience of being fluent at age nine, he struggles to think of words.

13 January 2010

Yongsheng Gao

Yongsheng Gao was born in Jinan, the capital of the Shandong province of China, also the home of Confucius some 2500 years ago. The Yellow River flows by Jinan, the ‘City of the Springs’, with the Mountain Tai nearby.

16 November 2009
16 November 2009

Hans Peter Beck

Unlike most of us at CERN, Hans Peter Beck is a Swiss native. He grew up in places like Weggis, on the shore of Lake Lucerne; Wolfenschiessen, in the mountainous interior of Switzerland; Dietikon, a suburb of Zürich, and finally in Zürich itself. He completed his matura – the Swiss secondary education – at the Mathematical Natural Science Gymnasium, Rämibühl, Zürich. Although he received better marks in chemistry at the time, physics held a much stronger attraction because it delves into matter at its most basic.

2 November 2009
2 November 2009

Richard Teuscher

As an ATLAS physicist, it’s not often you get to stand back and look at the bigger picture, according to Richard Teuscher: “Not at all! It’s only really when you get a chance to talk to someone about what you’re doing. Day-to-day, you’re writing software or fixing some part of the detector. But at the end you think, ‘Wow, look what we’ve done!’"

22 September 2009
22 September 2009

Lidia Smirnova

Moscow has been home to Lidia Smirnova for as long as she can remember. She was born in Ukraine, her mother’s region, shortly after the end of World War II. Her father, from Siberia, had served five years in the thick of the fighting, on the Soviet side. “He was wounded twice, but was really lucky to be saved with his life,” says Lidia. He was also very lucky to be stopped in Dnepropetrovsk, Ukraine, on his way from Germany to Japan. In that summer, 1945, he met Lidia’s mother.

7 September 2009
7 September 2009

Claudia Marcelloni

Most people at CERN know Claudia Marcelloni as the ATLAS photographer and the exquisite eye behind the ATLAS book, Exploring the Mystery of Matter. But to Claudia, photography is just one tool that she could use to practice her passion: the creative communication of ideas.

27 July 2009

George Mikenberg

Born Jorge in Argentina, George Mikenberg is a man of many aliases. He changed his name to the Hebrew Giora when he settled in Israel, but in English-speaking company, he encountered a problem: “The Anglo-Saxons cannot pronounce it, or rather they pronounce it in a way that means WC in Arabic.” And so he became George, but also Georg for the German-speaking, and Georges for his French-Swiss wife.

13 July 2009

Jochen Schieck

For Jochen Schieck, monthly trips to CERN – often spanning just one day – suit him well. The rest of the time he’s based at the Max Planck Institute (MPI) of Physics in Munich.

16 June 2009

Adele Rimoldi

Particle physics is an endurance sport. The building of ATLAS took nearly two decades of design and construction. In the early autumn, the blast from the first colliding particles will mark the start of a multi-year race to discover new physics. This rhythm of preparation and performance is one that Adele Rimoldi knows well.

2 June 2009

Osamu Jinnouchi

Osamu Jinnouchi had never left his native Japan when he first came to CERN, as a summer student with KEK, aged 25. “I don’t quite remember, but it was all impressive,” he ponders. “Everything was different here.”

18 May 2009

Marco Aurelio Diaz

Mountains are an enduring presence in the life of Marco Aurelio Díaz. “Wherever you are in Chile, the Andes are there, and they make an imprint in your mind that time does not erase,” he explains.

4 May 2009

Borut Kersevan

How does Borut Kersevan spend his free time? “What free time? is the answer,” he says with a wry grin. But what little he has, he likes to spend on family, travel, and good conversation.

6 April 2009

Stanislav Němeček

In his more laid-back free time, Stanislav Němeček enjoys good detective novels and a production about a fictional Czech genius by the name of Jára Cimrman. The legends of Cimrman began in radio shows but later became plays in two parts: a lecture by a “professor” about recently uncovered work by this scientist/inventor/writer/philosopher and a scene played out by actors. The idea of Cimrman has been around since 1966, beginning as sort of a comic, literary protest to Communist rule. New episodes are performed every few years. Though a fictional genius, Cimrman is a symbol of Czech pride.

9 March 2009

Anna and Lucia di Ciaccio

Physics, as a discipline, isn’t short of references to symmetry and balance. The tale of Anna and Lucia Di Ciaccio though is almost poetic in the way it weaves. They are non-identical twins, and interviewing them is both slightly surreal and a complete delight.

12 January 2009

Anna Kaczmarska

Anna Kaczmarska is an artistic Polish physicist working as a software developer of the official ATLAS software package designed to detect tau leptons. Since Anna was a teenager, she has loved medieval arts: literature, architecture and music, whose rhythms, she says, help her to program ATLAS software.

15 December 2008
15 December 2008

Jonas Strandberg

“I think the money put in the summer school is among the best ways that CERN has to invest money!” says Jonas Strandberg, a Swedish physicist working on the Muon Spectrometer and Higgs Physics at ATLAS. He is another good example of the power of the CERN Summer School in drawing outstanding students into particle physics; since Jonas first came to CERN in the summer of 1998 as a physics undergraduate student, he always wanted to return.

8 December 2008
8 December 2008

Pippa Wells

For SCT Project Leader, Pippa Wells, thoughts of precision, timing, collaborative working, and getting things to work in harmony are familiar to her both in and out of work. Her passion is playing the violin – specifically in orchestras. “It’s always been playing music with other people that has motivated me,” says Pippa, who picked up her first instrument when she was just six years old.

18 November 2008
18 November 2008

Amelia Maio

If the ATLAS detector assembly could be compared to a marathon, then Amelia Maio would be best described as a long-distance runner! This Portuguese physicist and Associate Professor at Lisbon University has been involved in the design of the ATLAS detector since its very conception. In addition, since the late 1980s, Amelia has also been a very active ‘outreach’ physicist.

10 November 2008
10 November 2008

Andi Salzburger

When ATLAS physicist Andi Salzburger finished his PhD in May 2008, he thought of doing something really special to celebrate such a milestone in his life. He ended up walking 430Km, traveling the whole length of Iceland from North to South on foot.

20 October 2008
20 October 2008

Steve Lloyd

Talking to Steve Lloyd, you can’t help but get the sense that the influence of this softly spoken, polite Brit is woven into the very fabric of CERN. As the author of the improved ATLAS Computing Workbook, he has certainly touched the working lives of all new members of ATLAS since 2005, but his reach extends further than that.

13 October 2008
13 October 2008

Soshi Tsuno

Soshi Tsuno didn’t know much about particle physics until he met professor Hiroshi Takeda in his fourth year at Kobe University in 1996. At the time, ATLAS collaborators there were already developing the thin gap muon chambers (TGCs) that reside in both the large and small wheels, and Soshi joined this work.

29 September 2008
29 September 2008

Anthony Morley

̉Walk through Restaurant 1 at about 1 p.m. on a weekday, and you can’t fail to notice the plethora of languages being spoken. Not only that, the diversity of accents twisting themselves around English or French conversations reveals just how many nationalities are represented at CERN. Nevertheless, listening to Anthony Morley mid-flow is still a bit of a novelty, given that he’s one of only a handful of Australians working on-site on ATLAS.

22 September 2008
22 September 2008

First beam and first events in ATLAS

ATLAS experimenters celebrated today as the first beams circulated the Large Hadron Collider in both directions. While everyone was cheering in the LHC control room, the cheers were echoed in the ATLAS and other control rooms, and in several auditoriums around CERN.

10 September 2008

Football and Modern Art for ATLAS

This time the outside ATLAS overview week was held in a somewhat unusual venue for a physics meeting. All the plenary sessions were organized inside the VIP area of the famous soccer stadium "Stade de Suisse" just outside the city center of Bern. I was one of the few participants of the meetings that had previously been in this stadium and moreover I was honored to be the coach of one of the two ATLAS soccer teams composed specially for the meeting. Thus when I was asked to give my impressions from the meeting, I thought I should mostly share my analysis and personal view of the first ATLAS soccer game and I happily accepted.

8 September 2008

Socio-Economic Perspectives on ATLAS

Building the ATLAS detector has been a mammoth and innovative project. Sociologists, economists, and entrepreneurs have studied how such projects benefit society and the economy. The ATLAS collaboration has a number of unique characteristics, because of the size of the project, together with its complex scientific nature. It is the largest collaborative effort ever attempted in the physical sciences with more than 2200 physicists from 38 countries.

15 June 2008

From Exotic Particles to Possible Solutions for Blindness

The search for exotic particle has led Alan Litke and his ATLAS colleagues to design a system that has allowed the discovery of a new type of cell in the retina of primates, and this technology is helping to find solutions for certain types of blindness.

10 June 2008

Argentina, Chile and Colombia Join ATLAS Experiment

The ATLAS collaboration is continuously expanding, and recently its message has reached new shores – South America. Three new countries, Argentina, Chile and Colombia joined the collaboration at the beginning of the year, when Peter Jenni, ATLAS spokesperson, signed collaboration agreements formalising the presence of the Latin American research teams within the ATLAS experiment.

15 April 2008