ª PARTICLE PHYSICS Deutsches Elektronen-Synchrotron A Research Centre of the Helmholtz Association PARTICLE PHYSICS 2013 2013ª The Helmholtz Association is a community grand challenges faced by society, science and of 18 scientific-technical and biological- industry. Helmholtz Centres perform top-class Highlights medical research centres. These centres have research in strategic programmes in six core been commissioned with pursuing long-term fields: Energy, Earth and Environment, Health, and Annual Report research goals on behalf of the state and Key Technologies, Structure of Matter, Aero- society. The Association strives to gain insights nautics, Space and Transport. and knowledge so that it can help to preserve and improve the foundations of human life. It does this by identifying and working on the www.helmholtz.de Accelerators | Photon Science | Particle Physics Deutsches Elektronen-Synchrotron A Research Centre of the Helmholtz Association Imprint Publishing and contact Editing Deutsches Elektronen-Synchrotron DESY Ilka Flegel, Manfred Fleischer, Michael Medinnis, A Research Centre of the Helmholtz Association Thomas Schörner-Sadenius Hamburg location: Layout Notkestr. 85, 22607 Hamburg, Germany Diana Schröder Tel.: +49 40 8998-0, Fax: +49 40 8998-3282 Production
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[email protected] Editorial deadline 28 February 2014 www.desy.de ISBN 978-3-935702-87-4 Editorial note doi: 10.3204/DESY_AR_ET2013 The authors of the individual scientific contributions published in this report are fully responsible for the contents. Cover A possible design of CTA, the Cherenkov Telescope Array.