Annual Report 2014 Nikhef National Institute for Subatomic Physics Annual Report 2014 National Institute for Subatomic Physics Nikhef Colophon Nikhef Nationaal instituut voor subatomaire fysica National Institute for Subatomic Physics Visiting address Post address Science Park 105 P.O. Box 41882 1098 XG Amsterdam 1009 DB Amsterdam The Netherlands The Netherlands Telephone: +31 (0)20 592 2000 Fax: +31 (0)20 592 5155 E-mail:
[email protected] URL: http://www.nikhef.nl Science communication Contact: Vanessa Mexner Telephone: +31 (0)20 592 5075 E-mail:
[email protected] Editors: Stan Bentvelsen, Wouter Hulsbergen, Kees Huyser, Louk Lapikás, Frank Linde, Melissa van der Sande Layout: Kees Huyser Printer: Gildeprint Drukkerijen, Enschede Photos: Kees Huyser, Stan Bentvelsen, Jan Koopstra, Marco Kraan, Arne de Laat, Hanne Nijhuis, CERN Front cover: First full KM3NeT string of 18 optical modules assembled at Nikhef. Deployment in the Mediterranean Sea follows early 2015. Back cover: The Standard Model of particles since the discovery of the Higgs boson. Nikhef is the National Institute for Subatomic Physics in the Netherlands, in which the Foundation for Fundamental Research on Matter, the University of Amsterdam, VU University Amsterdam, Radboud University Nijmegen and Utrecht University collaborate. Nikhef coordinates and supports most activities in experimental particle and astroparticle physics in the Netherlands. Nikhef participates in experiments at the Large Hadron Collider at CERN, notably ATLAS, LHCb and ALICE. Astroparticle physics activities at Nikhef are fourfold: the ANTARES and KM3NeT neutrino telescope projects in the Mediterranean Sea; the Pierre Auger Observatory for cosmic rays, located in Argentina; gravitational-wave detection via the Virgo interferometer in Italy, and the projects eLISA and Einstein Telescope; and the direct search for Dark Matter with the XENON detector in the Gran Sasso underground laboratory in Italy.