DESY summer students will join groups engaged in the following activities:

Programme B : Research in Elementary Particle Experiments, Accelerators, Theory of experimental particles and Computing:

Experiments in Elementary Particle Physics:
Research in the fields B1-B2 concentrates on the following areas:
-- Experiments ATLAS, CMS at the proton-proton-collider LHC,
-- Preparations for future experiments in particle physics,
-- The Belle II experiment and
-- The exeriment ALPS II at DESY.

Activities can be categorised as follows:

• B1. Physics data analysis and performance (software-oriented):
  Students will work on projects in the areas of preparation, reconstruction and analysis of real and/or simulated experimental data. Topics include: reconstructing physics objects (particles) from the detector data, event triggering, detector calibration, data quality monitoring, Higgs physics, standard model measurements, QCD, top quark physics, searches for new physics and flavour physics. The work will typically include the use and/or development of software tools based on Python and C++ as well as potential applications of Machine Learning libraries and other advanced data analysis and processing techniques.
• B2. Development of experimental equipment (hardware-oriented):
  Students join experimental groups working on the development of detectors, e.g. ATLAS and CMS at the High-Luminosity LHC, the ILD, BELLE II and ALPS II. Groups at DESY work on silicon trackers, gaseous detectors, data acquisition systems and testbeams. The students contribute to laboratory and testbeam setups, prepare and perform test measurements with prototypes, analyse and interpret the measured data.

Further research areas within Programme B offering projects as:

• B3. Research on accelerators:
  Students join groups engaged in the development of accelerators. Activities include prototype projects for an e+e- linear collider with emphasis on superconducting rf cavities and projects for beamline instrumentation and plasma wakefield acceleration. In Zeuthen, students can actively participate in the development of the photo injector test facility PITZ, which develops high-brightness electron sources, with applications ranging from ultra-bright THz sources to cutting-edge cancer therapy using ultra-high-dose rate irradiations.
• B4. Theory of elementary particles:
  Students acquire some elementary insight into topics from the wide spectrum of research carried out in Hamburg at the DESY Hamburg theory group and in Zeuthen at the DESY Zeuthen theory group, the NIC institute. Depending on previous knowledge, activities typically range from further reading, with discussions of theoretical concepts and research methods, to participation in simple research projects. Students are encouraged to indicate in their application if they have a preference for a particular field of research pursued in the theory groups. Often at least a minimum pre-knowledge (e.g. from lecture courses) is required in order to be selected for a project in a particular field.
• B5. Computing:
  At DESY Hamburg, students can participate in various areas of scientific computing such as data acquisition at high bandwidths, high volume data storage and management, as well as offline data processing and simulation on DESY clusters that are embedded in the worldwide LHC Computing Grid WLCG and the National Analysis Facility (NAF) for the German High Energy Physics Communities. Additional clusters provide the infrastructure for GPU-accelerated high performance data processing. Moreover, students can also work on collaborative IT services for scientific computing including shared spaces for documents, Gitlab and JupyterHub services as well as an infrastructure for single sign-on. Additionally in Zeuthen, projects in the field of quantum and parallel computing are offered. See here for more detailed information.

• Typical relative fractions of the number of offered projects in the different Programme B areas are:
  B1(40%),B2(33%), B3(12%), B4(10%) and B5(3%).

Program C : Research in Astroparticle Physics:

We explore high-energy processes in our universe and study messengers from outer space. Projects for summer students are offered in the following areas of physics analysis, instrument development and theory of astroparticle physics:

• C1. Astroparticle physics analysis and observations:
  Physics analysis in the context of gamma-ray observatories like CTA, H.E.S.S. and VERITAS, neutrino observatories such as IceCube and RNO-G, optical and UV telescopes such as ULTRASAT, and future detectors for high-energy astrophysics. Projects include analysis of data taken with the listed observatories, algorithm development, transient detection methods and activities in advanced computing and machine learning techniques.
• C2. Instrumentation for astroparticle physics:
  Activities encompass the development of instrumentation for astroparticle experiments including readout electronics, radio equipment, photo detectors, semiconductor sensors, optical devices and telescope structures. Students will contribute to major experiments such as the CTAO Medium Size Telescope (MST) structure, the Small Size Telescope (SST) camera, IceCube optical modules and the ULTRASAT camera.
• C3. Theory of astroparticle physics:
  Students are offered participation in research projects related to the modeling of astrophysical phenomena and interpretation of information from multiple high-energy messengers. Studies include the theoretical treatment of particle acceleration, high velocity outflows and turbulences as well as gravitational waves.

In your online application:
Please mark for which programme categories you wish to apply (up to three choices). Examples:
- You mark A1, A4, A5 as your choices
- You mark B1, B5, B3 as your choices
- You mark C3, C2, C1 as your choices

Please take note:
- It is also possible to mix categories, e.g. marking A5, B1, C1 or B1, C3, A1, etc.

- Since the number of available spots differ among the subcatagories, it may not be possible to assign you a project within your first-choice topic.