München 2006 – wissenschaftliches Programm
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HK: Physik der Hadronen und Kerne
HK 21: Postersitzung
HK 21.52: Poster
Dienstag, 21. März 2006, 15:30–17:00, P
Search for proton decay in the large liquid scintillator detector LENA — •Teresa Marrodan Undagoitia1, Franz von Feilitzsch1, Marianne Goeger-Neff1, Kathrin Hochmuth2, Lothar Oberauer1, Walter Potzel1, and Michael Wurm1 — 1Physik-Department E15, Technische Universität München,*James-Franck-Str., 85748 Garching — 2Max Planck Institut für Physik, Föhringer Ring, München
The LENA (Low Energy Neutrino Astronomy) detector is proposed to be a large-volume liquid-scintillator device which will be highly suitable for the investigation of a variety of topics in astrophysics, geophysics and particle physics. In this paper, the potential of such a detector concerning the search for proton decay in the SUSY favored decay channel p→ K+ν is investigated. Based on Geant4, Monte Carlo simulations of the proton decay in the LENA detector as well as of the background radiation in the detection energy windows have been developed. From these simulations an efficiency of 65% for the detection of a possible proton decay has been determined. Within ten years of measuring time a lower limit for the proton lifetime, concerning the decay channel investigated, of τ>4·1034 y could be reached.