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Title: Inelastic neutron scattering studies of Ge-76 and Se-76: relevance to neutrinoless double-beta decay

Abstract

Inelastic neutron scattering measurements were performed at the University of Kentucky Accelerator Laboratory on enriched Ge-76 and Se-76 scattering samples. From measurements at incident neutron energies from 2.0 to 4.0 MeV, many new levels were identified and characterized in each nucleus; level lifetimes, transition probabilities, multipole mixing ratios, and other properties were determined. In addition, gamma-ray cross sections for the Ge-76(n,n'gamma) reaction were measured at neutron energies up to 5.0 MeV, with the goal of determining the cross sections of gamma rays in 2040-keV region, which corresponds to the region of interest in the neutrinoless double beta decay of Ge-76. Gamma rays from the three strongest branches from the 3952-keV level were observed, but the previously reported 2041-keV gamma ray was not. Population cross sections across the range of incident neutron energies were determined for the 3952-keV level, resulting in a cross section of similar to 0.1 mb for the 2041-keV branch using the previously determined branching ratios. Beyond this, the data from these experiments indicate that previously unreported gamma rays from levels in Ge-76 can be found in the 2039-keV region.

Authors:
 [1];  [1];  [1];  [1];  [1];  [2];  [3];  [1]
  1. University of Kentucky, Lexington
  2. ORNL
  3. U.S. Naval Academy, Annapolis
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1261453
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: CGS15 Capture Gamma-Ray Spectroscopy and Related Topics, Dresden, Germany, 20150825, 20150825
Country of Publication:
United States
Language:
English

Citation Formats

Crider, Ben, Peters, Erin, Ross, T.J., McEllistrem, M, Prados-Estevez, F., Allmond, James M, Vanhoy, J.R., and Yates, S.W.. Inelastic neutron scattering studies of Ge-76 and Se-76: relevance to neutrinoless double-beta decay. United States: N. p., 2015. Web.
Crider, Ben, Peters, Erin, Ross, T.J., McEllistrem, M, Prados-Estevez, F., Allmond, James M, Vanhoy, J.R., & Yates, S.W.. Inelastic neutron scattering studies of Ge-76 and Se-76: relevance to neutrinoless double-beta decay. United States.
Crider, Ben, Peters, Erin, Ross, T.J., McEllistrem, M, Prados-Estevez, F., Allmond, James M, Vanhoy, J.R., and Yates, S.W.. Thu . "Inelastic neutron scattering studies of Ge-76 and Se-76: relevance to neutrinoless double-beta decay". United States. doi:. https://www.osti.gov/servlets/purl/1261453.
@article{osti_1261453,
title = {Inelastic neutron scattering studies of Ge-76 and Se-76: relevance to neutrinoless double-beta decay},
author = {Crider, Ben and Peters, Erin and Ross, T.J. and McEllistrem, M and Prados-Estevez, F. and Allmond, James M and Vanhoy, J.R. and Yates, S.W.},
abstractNote = {Inelastic neutron scattering measurements were performed at the University of Kentucky Accelerator Laboratory on enriched Ge-76 and Se-76 scattering samples. From measurements at incident neutron energies from 2.0 to 4.0 MeV, many new levels were identified and characterized in each nucleus; level lifetimes, transition probabilities, multipole mixing ratios, and other properties were determined. In addition, gamma-ray cross sections for the Ge-76(n,n'gamma) reaction were measured at neutron energies up to 5.0 MeV, with the goal of determining the cross sections of gamma rays in 2040-keV region, which corresponds to the region of interest in the neutrinoless double beta decay of Ge-76. Gamma rays from the three strongest branches from the 3952-keV level were observed, but the previously reported 2041-keV gamma ray was not. Population cross sections across the range of incident neutron energies were determined for the 3952-keV level, resulting in a cross section of similar to 0.1 mb for the 2041-keV branch using the previously determined branching ratios. Beyond this, the data from these experiments indicate that previously unreported gamma rays from levels in Ge-76 can be found in the 2039-keV region.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 2015},
month = {Thu Jan 01 00:00:00 EST 2015}
}

Conference:
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