July 29, 2015 to August 6, 2015
World Forum
Europe/Amsterdam timezone

GADZOOKS!: status and physics potential

Aug 1, 2015, 3:30 PM
Amazon Foyer Terrace (World Forum)

Amazon Foyer Terrace

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Board: 278
Poster contribution NU-IN Poster 2 DM and NU


Pablo Fernández (UAM)


The GADZOOKS! project is the proposed upgrade of the Super-Kamiokande (SK) detector in order to enable it to efficiently detect thermal neutrons. Inverse beta decay reactions, as well as charged current quasi-elastic (CCQE) scattering of low energy anti-neutrinos (up to a few hundreds of MeV) in SK, produce one positron and one neutron in the final state. The neutron thermalizes and is captured by gadolinium (Gd). The capture is followed by a ~8 MeV gamma cascade. The observation of this cascade would mean that SK could identify these reactions as genuine with very high coincidence and efficiency (>80%). GADZOOKS! will enable Super-Kamiokande - and water Cherenkov detectors in general – to pursue a wealth of physics which is currently inaccessible due to backgrounds. The most important will be the first observation of the diffuse supernova neutrino background: Super-Kamiokande enriched with Gd can discover it after few years of running. In addition, Gd-loading has benefits for other physics currently shadowed by backgrounds, such as subtle features of supernova bursts, pre-supernovae and reactor antineutrinos. Gd would also provide improvements for atmospheric and accelerator neutrino analysis and proton decay searches. The main R&D program towards GADZOOKS! is EGADS: a 200 ton, fully instrumented tank built in a new cavern in the Kamioka mine. EGADS incorporates all the necessary subsystems to make GADZOOKS! a reality. This contribution will describe all the main physics topics and the description and status of the EGADS R&D, which is being carried out for the realization of GADZOOKS!
Collaboration -- not specified --
Registration number following "ICRC2015-I/" 104

Primary author

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