Liquid argon light collection and veto modeling in GERDA Phase II
Abstract
The ability to detect liquid argon scintillation light from within a densely packed high-purity germanium detector array allowed the GERDA experiment to reach an exceptionally low background rate in the search for neutrinoless double beta decay of Ge. Proper modeling of the light propagation throughout the experimental setup, from any origin in the liquid argon volume to its eventual detection by the novel light read-out system, provides insight into the rejection capability and is a necessary ingredient to obtain robust background predictions. In this paper, we present a model of the GERDA liquid argon veto, as obtained by Monte Carlo simulations and constrained by calibration data, and highlight its application for background decomposition.
Keywords
Cite
@article{arxiv.2212.02856,
title = {Liquid argon light collection and veto modeling in GERDA Phase II},
author = {GERDA collaboration and M. Agostini and A. Alexander and G. R. Araujo and A. M. Bakalyarov and M. Balata and I. Barabanov and L. Baudis and C. Bauer and S. Belogurov and A. Bettini and L. Bezrukov and V. Biancacci and E. Bossio and V. Bothe and R. Brugnera and A. Caldwell and S. Calgaro and C. Cattadori and A. Chernogorov and P-J. Chiu and T. Comellato and V. D'Andrea and E. V. Demidova and A. Di Giacinto and N. Di Marco and E. Doroshkevich and F. Fischer and M. Fomina and A. Gangapshev and A. Garfagnini and C. Gooch and P. Grabmayr and V. Gurentsov and K. Gusev and J. Hakenmüller and S. Hemmer and W. Hofmann and M. Hult and L. V. Inzhechik and J. Janicskó Csáthy and J. Jochum and M. Junker and V. Kazalov and Y. Kermaïdic and H. Khushbakht and T. Kihm and K. Kilgus and I. V. Kirpichnikov and A. Klimenko and K. T. Knöpfle and O. Kochetov and V. N. Kornoukhov and P. Krause and V. V. Kuzminov and M. Laubenstein and B. Lehnert and M. Lindner and I. Lippi and A. Lubashevskiy and B. Lubsandorzhiev and G. Lutter and C. Macolino and B. Majorovits and W. Maneschg and L. Manzanillas and G. Marshall and G. Marshall and M. Miloradovic and R. Mingazheva and M. Misiaszek and M. Morella and Y. Müller and I. Nemchenok and M. Neuberger and L. Pandola and K. Pelczar and L. Pertoldi and P. Piseri and A. Pullia and L. Rauscher and M. Redchuk and S. Riboldi and N. Rumyantseva and C. Sada and S. Sailer and F. Salamida and S. Schönert and J. Schreiner and M. Schütt and A-K. Schütz and O. Schulz and M. Schwarz and B. Schwingenheuer and O. Selivanenko and E. Shevchik and M. Shirchenko and L. Shtembari and H. Simgen and A. Smolnikov and D. Stukov and S. Sullivan and A. A. Vasenko and A. Veresnikova and C. Vignoli and K. von Sturm and A. Wegmann and T. Wester and C. Wiesinger and M. Wojcik and E. Yanovich and B. Zatschler and I. Zhitnikov and S. V. Zhukov and D. Zinatulina and A. Zschocke and A. J. Zsigmond and K. Zuber and G. Zuzel},
journal= {arXiv preprint arXiv:2212.02856},
year = {2023}
}