Report/Contribution to a conference proceedings/Contribution to a book

PUBDB-2017-12160

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png The $0\nu\beta\beta$ Experiment GERDA Latest Phase I Results and Phase II Upgrade

von Sturm, K. (Corresponding author) ; GERDA Collaboration (Collaboration author)

2017
Verlag Deutsches Elektronen-Synchrotron Hamburg
ISBN: 978-3-945931-06-6, 978-3-945931-06-6

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Please use a persistent id in citations: doi:10.3204/DESY-PROC-2009-03/VonSturm_Katharina

Report No.: DESY-PROC-2016-03

Abstract: \textsc{Gerda} published the best limit on $^{76}$Ge $0\nu\beta\beta$ decay's half-life of $T_{1/2}^{0\nu}>2.1\cdot10^{25}$yr ($90\%$C.L.) in 2013. Subsequently, exotic decay modes with Majoron emission were investigated obtaining half-life limits $\sim 10^{23}$yr for spectral indices $n=1,2,3,7$. The half-life measurement of $2\nu\beta\beta$ from $^{76}$Ge to $^{76}$Se g.s. was reevaluated with an uncertainty $<5\%$ and decay modes to three $^{76}$Se excited states were analyzed. The lower limits found, $\sim 10^{23}\,$yr, rule out a number of nuclear structure model predictions. In a recent major upgrade, amongst other, the detector mass was almost doubled and a new veto system, exploiting liquid argon scintillation light, was installed.

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Contributing Institute(s):

1. Bibliothek und Dokumentation (L)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2017

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Book/Proceedings/Report Kim, Y. (Editor) ; Lindner, A. (Editor)DESY* ; Semertzidis, Y. K. (Editor)
12th "Patras" Workshop on Axions, WIMPs and WISPs, PATRAS 2016
201712th "Patras" Workshop on Axions, WIMPs and WISPs, PATRAS 2016, Jeju IslandJeju Island, South Korea, 20 Jun 2016 - 24 Jun 20162016-06-202016-06-24 Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-PROC (2017) [10.3204/PUBDB-2017-11637]2017     Files BibTeX | EndNote: XML, Text | RIS

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