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  New Monte-Carlo simulation of the HEIDELBERG-MOSCOW double beta decay experiment

Dörr, C., & Klapdor-Kleingrothaus, H. V. (2003). New Monte-Carlo simulation of the HEIDELBERG-MOSCOW double beta decay experiment. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 513(3), 596-621.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-81AE-3 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-81AF-1
Genre: Journal Article

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 Creators:
Dörr, C.1, Author           
Klapdor-Kleingrothaus, H. V.1, Author           
Affiliations:
1Prof. Dirk Schwalm, Emeriti, MPI for Nuclear Physics, Max Planck Society, ou_907546              

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 Abstract: Based on the Monte-Carlo package GEANT4 a new simulation of the complete background spectrum of the HEIDELBERG-MOSCOW experiment which operates five enriched 76Ge detectors in a low background environment in the Gran Sasso underground laboratory was performed. The resulting background model is used to evaluate the signal of the two neutrino accompanied double beta decay with a statistical significance of 41.57 kgyear resulting in a half-life of T1/22ν=(1.74±0.01(stat)-0.16+0.18 (syst))×1021 years. Using GEANT4 a simulation of elastic and inelastic neutron reactions has been performed for the first time and is used to estimate the contribution of the neutron flux in the Gran Sasso underground laboratory to the experimental spectrum. The composition of the background in the energy range from 2000 to 2100 keV around the Q value for neutrinoless double beta decay is discussed in some detail.

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Language(s): eng - English
 Dates: 2003
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 63146
 Degree: -

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Title: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
  Alternative Title : Nucl. Instrum. Meth. A
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 513 (3) Sequence Number: - Start / End Page: 596 - 621 Identifier: -