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  Background Suppression Using Pulse Shape Analysis with a BEGe Detector for Neutrinoless Double Beta Decay Search with GERDA

Budjáš, D., Chkvorets, O., & Schönert, S. (2009). Background Suppression Using Pulse Shape Analysis with a BEGe Detector for Neutrinoless Double Beta Decay Search with GERDA. In Marvin L. Marshak (Ed.), 10th Conference on the Intersections of Particle and Nuclear Physics (pp. 96-99). Melville, N.Y.: American Institute of Physics.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-739E-7 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-739F-5
Genre: Conference Paper

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 Creators:
Budjáš, Dusan1, Author           
Chkvorets, Oleg1, Author           
Schönert, Stefan1, Author           
Affiliations:
1Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society, ou_904549              

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 Abstract: A pulse shape analysis for distinguishing between double beta decay-like interactions and multiple-scattered photons was performed for the first time using a BEGe-type detector. This discrimination method is included in the research and development for the second phase of the GERDA experiment, since active background suppression techniques are necessary to reach sensitivity for the 76Ge neutrinoless double beta decay half life of > 1026 years. A suppression of back­grounds in the energy region of interest around the 76Ge Qββ = 2039 keV is demonstrated, with (0.93 ± 0.08)% survival probability for events from 60Co, (21 ± 3)% for 226Ra, and (40 ± 2)% for 228Th. This performance is achieved with (89 ± 1)% acceptance of 228Th double escape events, which are analogous to double beta decay.

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Language(s): eng - English
 Dates: 2009-12
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 433499
DOI: 10.1063/1.3293966
 Degree: -

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Title: CIPANP 2009: Tenth Conference on the Intersections of Particle and Nuclear Physics
Place of Event: San Diego, California
Start-/End Date: 2009-05-26 - 2009-05-31

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Title: 10th Conference on the Intersections of Particle and Nuclear Physics
Source Genre: Proceedings
 Creator(s):
Marvin L. Marshak, Editor
Affiliations:
-
Publ. Info: Melville, N.Y. : American Institute of Physics
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 96 - 99 Identifier: ISBN: 978-0-7354-0723-7

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Title: AIP Conference Proceedings
Source Genre: Series
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Pages: - Volume / Issue: 1182 Sequence Number: - Start / End Page: - Identifier: -