The ATLAS detector

Together with scientists from around the world, physicists at the MPP have developed and constructed the particle detector ATLAS. ATLAS is an experiment at the Large Hadron Collider (LHC), a particle accelerator at the CERN research center in Geneva. The LHC began operating in 2008. In March 2010, the research program got under way at this proton-proton accelerator, working with the highest energies achieved to date at any accelerator facility. With the help of the LHC, researchers from all over the world want to coax out the secrets of the structure of matter and the fundamental forces.

ATLAS records the results of proton-proton collisions produced by the LHC. In the process, conditions similar to those in the extremely early, hot and dense universe shortly after the Big Bang are created. From that, the researchers gain insights about the fundamental building blocks of matter as well as their interactions. They are looking for new phenomena, such as the existence of higher dimensions of space and time and the origin of the dark matter that holds our universe together.

The MPP was and is involved with the development of instruments essential to the ATLAS detector – the inner detector, the calorimeters, and the muon chambers – as well as the setup of the computing system. A major technical upgrade is scheduled to start from 2026. The goal is to increase the number of proton collisions in order to obtain more data. MPP scientists and technicians are working to make ATLAS fit for the coming surge of new data.

30 years of ATLAS

The history of the truly big experiment began on October 1, 1992, when close to 90 research instituitions signed a common letter of intent to build a detector for proton-proton collisions. The Max Planck Institute for Physics was one these, its scientists contributed to the devolopment of major ATLAS components.

The greatest success of the ATLAS experiment so far was the discovery of the Higgs boson in 2012. As early as the 1960s, the theoretical phycisitst Peter Higgs, François Englert and Robert Brouthad proposed the existence of this particle: As a building block of the Standard Model, it gives other elementary particles their mass. For this, Higgs and Englert received the 2013 Nobel Prize.

Since June 2015, the LHC accelerator has been running with a record energy of 13 teraelectronvolts – nearly twice as much as in the years before. With that, the researchers hope to discover "new physics" – that is, particles and effects that do not occur in the Standard Model but which could help to solve the puzzles of the dark matter, the dark energy, and the missing antimatter in the universe.

Further information on the ATLAS experiment

News releases


After the discovery of the Higgs boson at the Large Hadron Collider (LHC) in 2012 the particle physicists have been working even harder on the study of the properties of the Higgs boson and on the search for new particles. Particle physicist from all over the world will meet at the Max-Planck…

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Jagd auf neue Elementarteilchen – was einen jungen Physiker an seiner Forschung fasziniert

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The search for rare particles continues unabated at the Large Hadron Collider (LHC). In fact, the LHC will not achieve its peak performance before 2025; by then the upgraded High Luminosity (HL) LHC will accelerate and collide considerably more proton bunches than before. Scientists will need to…

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It’s all about high-energy and astroparticle physics at Wildbad Kreuth from Oct. 4 to 9, 2015, when the Max Planck Institute for Physics hosts this year’s International Symposium on Multiparticle Dynamics (ISMD). Held annually since 1970, the ISMD conference rotates from year to year among different…

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Today ATLAS and other particle physics experiments at CERN's Large Hadron Collider (LHC) began recording physics data from 13 TeV proton collisions, which allow for precision studies of the Higgs boson and other Standard Model particles, as well as the search for new particles with higher masses.…

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By analyzing their combined data the CMS and LHCb collaborations revealed the very rare decay of a B0s particle into two muon particles. The Standard Model, the theory that best describes the world of particles, predicts that this rare subatomic process happens about four times out of a billion…

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After two years of intense maintenance and consolidation, and several months of preparation for restart, the Large Hadron Collider, the most powerful particle accelerator in the world, is back in operation.

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A short circuit that had delayed the relaunch of the Large Hadron Collider has been remedied. Now the LHC is back on track for the initiation of Run 2.

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After its first long shutdown for planned maintenance the Large Hadron Collider is ready to start up again.

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Group members

E-mail address:
Phone number: +49 89 32354-extension
name function e-mail extension office
Ahmadova, Fazila, Ms fazila 453 229
Bangaru, Nayana Student bangaru 240 119
Barillari, Teresa, Dr. Senior Scientist barilla 369 227
Bethke, Siegfried, Prof. Dr. Director bethke 381 219
Britzger, Daniel, Dr. Postdoc britzger 453 229
Buchin, Daniel PhD Student dbuchin 376 226
Cieri, Davide, Dr. Postdoc dcieri 226 126
Delle Fratte, Cesare Senior Scientist drfalk3n MPCDF 3299-1157 MPCDF
Duda, Dominik, Dr. Postdoc dduda 256 121
Grewe, Simon PhD Student grewe 358 126
Hessler, Johannes PhD Student jhessler 453 229
Hill, Siddha Student siddha 453 229
Holzbock, Michael, Dr. Postdoc holzbock 376 226
Kado, Marumi, Prof. Director kado 382 223
Kiryunin, Andrey, Ph.D. Senior Scientist kiryunin 286 130
Kiwit, Florian Student fkiwit 220 129
Kluth, Stefan, PD Dr. Senior Scientist skluth 468 246
Kortner, Oliver, PD Dr. Senior Scientist kortner 240 119
Kortner, Sandra, Dr. Senior Scientist sandra 288 127
Kroha, Hubert, Prof. Dr. Senior Scientist kroha 435 120
Leis, Ulrich Engineering leis 550 122C
Maly, Pavel, Ph.D. Engineering pmaly 385 451
Meier, Nick Student meiernic 240 119
Menke, Sven, Dr. Senior Scientist menke 410 209
Pocuc, Dilan Student pocucd 241 119
Reed, Alice PhD Student reed 220 129
Rendel, Marian PhD Student rendel 559 122
Richter, Robert, Dr. Senior Scientist richterr 358 230
Schacht, Peter, Dr. Emeritus pys 228 210
Schielke, Anja Secretary schielke 299 220
Soyk, Daniel Engineering soyk 374 443
Spalla, Margherita, Dr. Postdoc mspalla 286 130
Stonjek, Stefan, Dr. Senior Scientist stonjek 296 221
Turkovic, Timur Student turkovic 559 122
Verbytskyi, Andrii, Dr. Senior Scientist andriish 453 229
Voevodina, Elena, Dr. Postdoc voevodin 559 122
Wenke, Nina PhD Student wenke 767 229
Wesely, Bastian Student wesely 240 119
Zimmermann, Joerg Engineering joergzim 446 442

Key publications

Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
ATLAS Collaboration (Georges Aad (Freiburg U.) et al.). Jul 2012. 29 pp.
Published in Phys.Lett. B716 (2012) 1-29
DOI: 10.1016/j.physletb.2012.08.020
The ATLAS Experiment at the CERN Large Hadron Collider
ATLAS Collaboration (G. Aad (Marseille, CPPM) et al.). 2008. 437 pp.
JINST 3 (2008) S08003
DOI: 10.1088/1748-0221/3/08/S08003
Measurements of the Higgs boson production and decay rates and coupling
strengths using pp collision data at √s=7 and 8 TeV in the ATLAS experiment
ATLAS Collaboration (Georges Aad (Marseille, CPPM) et al.). Jul 16, 2015. 64 pp.
Eur.Phys.J. C76 (2016) no.1
arXiv:1507.04548 [hep-ex]
DOI: 10.1140/epjc/s10052-015-3769-y

Measurement of the top quark mass in the tt¯→ lepton+jets
and tt¯→ dilepton  channels using √s=7 TeV ATLAS data
ATLAS Collaboration (Georges Aad (Marseille, CPPM) et al.). Mar 18, 2015. 35 pp.
Published in Eur.Phys.J. C75 (2015) no.7, 330
DOI: 10.1140/epjc/s10052-015-3544-0
Search for the electroweak production of supersymmetric particles in √s=8 TeV pp
collisions with the ATLAS detector
ATLAS Collaboration (Georges Aad (Marseille, CPPM) et al.). Sep 23, 2015. 61 pp.
Published in Phys.Rev. D93 (2016) no.5, 052002
arXiv:1509.07152 [hep-ex]
DOI: 10.1103/PhysRevD.93.052002