Research activities

The CMS group at DESY engages in activities ranging from physics analysis and contributions to the data taking (monitoring and alignment) to detector hardware projects. Physics topics are addressed in the areas Top Quarks, Higgs, SUSY, QCD, as well as studies for parton density distributions in the proton. The group works also on data quality monitoring, tracker alignment, high level trigger, the CASTOR calorimeter, the beam condition monitoring as well as research and development for the tracker upgrade.

CMS DESY: Group leader


Matthias Kasemann -4588
(Guenter Eckerlin -2582)

Birgit Breetzke -3680
Gabriele Kalhoefer -3680
Fax: -3092

ATLAS is one of two general purpose detectors operating at the LHC at CERN. DESY joined the ATLAS collaboration in 2006 and is engaged in several activities. The above photo shows the detector at an early stage of installation. A quick pictorial introduction to our activities follows. For more information see the tabs at the top of the page.

ATLAS DESY: Group leaders


ATLAS Group at DESY Hamburg:
Dr. Ingrid-Maria Gregor
Phone: +49 (0)40 8998 3032

ATLAS Group at DESY Zeuthen
Dr. Klaus Moenig
Phone: +49 (0)33762 7 7271

Sabine Krohn
Phone: +49 (0)40 8998 1449

Ramona Matthes
Phone: +49 (0)40 8998 4435

ILC@DESY Project Group The ILC group at DESY is part of the regional european ILC team, and as such a member of the worldwide ILC team. The ILC@DESY group is charged with coordinating the work at DESY done for the preparation of the ILC. The ILC effort is closely coorindated with the X-FEL effort at DESY.


Responsible person at DESY

DESY phone


Brian Foster



Nick Walker



Ties Behnke


Scientific Assistant

Karsten Buesser



Barbara Warmbein


Joining the hunt of flavour at the terascale The Belle II Experiment Since the year 2011 DESY is member of the international Belle II collaboration and engages in preparations for a very ambitious experiment, which will be operated at the Japanese High-Energy Accelerator Research Organisation KEK in Tsukuba close to Tokyo. This experiment at the intensity frontier exploits properties of B-mesons, which in the year 1987 for the first time were measured at the DORIS experiment ARGUS and will address some of the fundamental questions in particle physics today.

BELLE II DESY: Group Leader


Carsten Niebuhr -4594

Alla Grabowsky -3144

ALPS Any Light Particle Search Looking for WISPs One of the most exciting quests in particle physics is the search for new particles beyond the standard model. Extensions of the standard model predict not only new particles with masses above the electroweak scale (about 100 GeV), for example SUSY particles, but also so-called WISPs (very Weakly Interacting Sub-eV Particles). The most famous WISP candidate is the axion, which has been introduced to explain the smallness of CP violation in QCD and which turned out to also be a prime candidate for a constituent of the dark matter in the universe. Similarly axion like particles (ALPs), light spin 1 particles called "hidden sector photons" or light minicharged particles seem to occur naturally in realistic embeddings of the standard model into string theory.

ALPS DESY: group leader

Contact details

Andreas Ringwald -2093

Further contacts

Without theoretical foundation, the best experiment would be worthless. Only by working closely together can theorists and experimentalists pierce the mysteries of nature and work out a comprehensive theory of all particles and forces. Theorists at DESY explore the Standard Model of particle physics, which very successfully describes the fundamental building blocks of our world and the forces acting between them. Nevertheless, it leaves essential questions unanswered. Where does the mass come from? What is dark matter made of? What happened right after the big bang? Are there any extra dimensions? The DESY theorists investigate various possibilities to extend the Standard Model and embed it within a comprehensive theory that provides answers to these questions.

In addition, the theorists at DESY-Zeuthen perform research in frame of the John von Neumann Institute Computing NIC on quantum filed theories formulated on space-time lattices aimed at solving problems in elementary particle physics.


Gruppenleiter (Vertreter)


Theorie in Hamburg

Christophe Grojean -3148
(Volker Schomerus -2419)

Guerrero, Cristina -3590 
Henning, Inna -1493 
Herrmann, Julia -2413

    • Theorie/Cosmo

Geraldine Servant -1484


    • Theorie/Pheno

Georg Weiglein -2523


    • Theorie/String

Volker Schomerus -2419


Zeuthen Particle Physics Theory (ZPPT)

Stefan Schaefer (group speaker) -7383

Christiane John -7507
Fax: -7419


The LHC accelerator near Geneva, the current flagship of particle physics and the world's most powerful accelerator, generates data amounting to around 25 petabytes (25 million gigabytes) each year, enough to fill more than a million DVDs a year. Thousands of scientists around the world analyse this flood of data – an enormous challenge with respect to data storage and computing power.


The DESY scientists also conduct research in astroparticle physics, an interdisciplinary field that combines methods from astrophysics, cosmology and particle physics. Using spectacular detectors and telescopes, the experts are analysing exotic particles – neutrinos and gamma rays – that come from far corners of the universe and could provide information about fascinating phenomena, such as black holes, exploding stars and inconceivably intense eruptions of radiation.