Measurements of the 40Ar(n, γ)41Ar radiative-capture cross section between 0.4 and 14.8 MeV

Megha Bhike; B. Fallin; W. Tornow

doi:10.1016/j.physletb.2014.07.044

Physics Letters B (Sep 2014)

Measurements of the 40Ar(n, γ)41Ar radiative-capture cross section between 0.4 and 14.8 MeV

Megha Bhike,
B. Fallin,
W. Tornow

Affiliations

Megha Bhike: Department of Physics, Duke University, Durham, NC 27708, USA
B. Fallin: Department of Physics, Duke University, Durham, NC 27708, USA
W. Tornow: Department of Physics, Duke University, Durham, NC 27708, USA

DOI: https://doi.org/10.1016/j.physletb.2014.07.044
Journal volume & issue: Vol. 736, no. C
pp. 361 – 364

Abstract

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The 40Ar(n, γ)41Ar neutron capture cross section has been measured between 0.4 and 14.8 MeV neutron energy using the activation technique. The data are important for estimating backgrounds in argon-based neutrino and dark-matter detectors and in the neutrino-less double-beta decay search GERDA, which uses liquid argon as cooling and shielding medium. For the first time the 40Ar(n, γ)41Ar cross section has been measured for neutron energies above 1 MeV. Our results are compared to the evaluation ENDF/B-VII.1 and the calculated prediction TENDL-2013. The latter agrees very well with the present results.

Published in Physics Letters B

ISSN: 0370-2693 (Print); 1873-2445 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/physics-letters-b/

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