Neutrino telescopes: ANTARES and KM3NeT Maarten de Jong Programme: Group composition (current): 6+2 staff, 4 post-doc, 4 PhD. Vidi 1, Veni 1+1 (ANTARES/Auger) Publications: 6 theses 26 publications Partners UvA, UU NIOZ, KVI Investment grants in experiment: ANTARES3,3 M€, 2000 KM3NeT8,8 M€, 2008

20-sept-2011Maarten de Jong2 Mission & Research Questions Mission: To discover neutrino sources in the Universe. The observation of cosmic neutrinos will provide information about the origin of cosmic rays, the mechanism of particle acceleration and transient astrophysical phenomena. Neutrino Telescope Origin of mass Antimatter Quark-gluon plasma SupersymmetryX Dark matterXX Dark energy Nature of neutrino’sX Extra dimensions Gravitational waves Magnetic monopolesXX Origin of cosmic raysXX Early universe Unexpected phenomenaXXX Research topics:  Point source searches of cosmic neutrinos  Gamma-ray bursts  Dark matter  Neutrino energy spectrum  Cosmic rays, muon bundles

20-sept-2011Maarten de Jong3 A few highlights  Physics coordinatorships –P. KooijmanDiverse physics –A. HeijboerData ‒ Monte Carlo –M. de JongANTARES deputy spokesperson  ICRC August , Beijing –Talks P. KooijmanKM3NeTStatus A. HeijboerAntaresStatus C. BogazziANTARESPoint sources ( ) D. PaleoselitisANTARESNeutrino energy spectrum –Posters C. Reed/M. BouwhuisANTARESGamma-ray bursts C.C. HsuANTARESCosmic rays ‒ Several keynote speakers emphasized the importance of detecting neutrinos from supernova remnants

20-sept-2011Maarten de Jong420-sept-2011Maarten de Jong4 A few highlights (II)  ANTARES ‒ NL analyses established angular resolution 0.4 degrees first point source search paper first GRB results (paper ready) first paper on synergy APP ‒ Oceanographic research (NIOZ) ‒ NL developed best track fit ‒ NL developed the general purpose trigger and a source track trigger ‒ NL contributed to data – Monte Carlo studies ANTARES sky map (2007 ‒ 2010)

20-sept-2011Maarten de Jong520-sept-2011Maarten de Jong520-sept-2011Maarten de Jong5 A few highlights (III)  KM3NeT ‒ 5 x IceCube, on ESFRI (2006) and National (2008) roadmap ‒ 2008 Conceptual Design Report ‒ 2011 Technical Design Report –Today Scientific focus ‒ Supernova remnants in our Galaxy Technical convergence ‒ “multi-PMT optical module on a bar” Site issue resolved ‒ Remotely operated distributed network of neutrino telescopes Funding ‒ sufficient funds (25%) to start construction ‒ Performance neutrino telescope not affected ‒ Augments Earth and Sea sciences

 KM3NeT –NL main editor CDR and TDR –NL design of multi-PMT optical module chosen –NL concept All-data-to-shore is the standard for all NL developed “scan( ,  ) + 1D trigger algorithm” proved viable ‒ NL design photonics readout prototyped deep-sea terminal (e.g. optical module) without laser ‒ NL developed best track fit general formalism of PDF of Cherenkov/shower light angular resolution better than 0.1 degrees ‒ NL/IceCube developments of alternative Monte Carlo simulation “tracking every photon” with GPUs 20-sept-2011Maarten de Jong620-sept-2011Maarten de Jong620-sept-2011Maarten de Jong620-sept-2011Maarten de Jong6 A few highlights (IV) KM3NeT optical module PDF of light

20-sept-2011Maarten de Jong7 Coming years: ongoing activities  ANTARES –update/improve point source searches –explore new physics ideas shower detection (combined with muon veto) charm production multi-muon / cosmic ray physics –continue data – Monte Carlo studies input to KM3NeT –new MoU 5 years of operation includes decommissioning

20-sept-2011Maarten de Jong820-sept-2011Maarten de Jong8 Coming years: ongoing activities (II)  KM3NeT ‒ Construction of KM3NeT facility NL financial contribution is secured –Monte Carlo simulation NL contribution to optimisation of design –Reconstruction NL developments ‒ fit( ,  )  scan( ,  ) ‒ sky map for every event ‒ Science NL is well prepared for point source searches with KM3NeT NL augments synergy between APP and oceanographic research sky map of one event

20-sept-2011Maarten de Jong9 sudden Eddy currents Temperature France food supply Bioluminescence short lived (rare) events dominate deep-sea life permanent observatory time profile Coming years: ongoing activities (III)

20-sept-2011Maarten de Jong10 Internationalisation  Joint meetings with IceCube –Yearly analysis meeting (MANTS) –PINGU workshop, Nikhef spring 2011  Global Neutrino Observatory –recognised in ASPERA roadmap  VLVnT –bi-annual workshop on Very Large Volume neutrino Telescopes –initiated by Nikhef in 2003 –October 2011, Erlangen KM3NeT 5 sigma discovery of RXJ1713 in 5 years Maarten de Jong summary speaker

20-sept-2011Maarten de Jong11 Points of attention  Submitted KM3NeT NL progress report (summer 2011) –KM3NeT headquarters in NL no immediate funding request –foresee funding request in real-time computer farm –in line with NL contribution to ANTARES large volume T-sensor array –synergy APP and oceanographic research  Anticipation of funds ‒ National, regional and European (FP7) ‒ ~75% of total budget not yet secured

Points of attention (II)  Design mechanical structure (“tower”) not yet validated –Alternative NL design exists (“string”) deployment vehicle developed in collaboration with NIOZ successfully tested 20-sept-2011Maarten de Jong12

Conclusions  ANTARES –steady data taking (24h/day) –publications coming out –Nikhef is leading analysis efforts –MoU being signed  KM3NeT –technical design converged –site issue evolved to remote operated distributed network of neutrino telescopes –legal framework imminent –funds to start construction anticipated –Nikhef has contributed import designs innovations 20-sept-2011Maarten de Jong13 Dutch contribution to ANTARES has paid off

Conclusions (II)  KM3NeT time lines 20-sept-2011Maarten de Jong14