R-matrix description of particle energy spectra produced by low-energy 3H + 3H reactions
Abstract
An R-matrix model for three-body final states is presented and applied to a recent measurement of the neutron energy spectrum from the 3H + 3H→ 2n + α reaction. The calculation includes the n alpha and n n interactions in the final state, angular momentum conservation, antisymmetrization, and the interference between different channels. A good fit to the measured spectrum is obtained, where clear evidence for the 5He ground state is observed. The model is also used to predict the alpha-particle spectrum from 3H + 3H as well as particle spectra from 3He + 3He. The R-matrix approach presented here is very general, and can be adapted to a wide variety of problems with three-body final states.
- Authors:
-
- Ohio Univ., Athens, OH (United States)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Indian Univ. Cyclotron Facility (IUCF), Bloomington, IN (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Ohio Univ., Athens, OH (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1227123
- Alternate Identifier(s):
- OSTI ID: 1196452
- Grant/Contract Number:
- FG02-88ER40387; NA0001837; AC52-06NA25396; AC52-07NA27344
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review C, Nuclear Physics
- Additional Journal Information:
- Journal Volume: 92; Journal Issue: 1; Journal ID: ISSN 0556-2813
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 22 GENERAL STUDIES OF NUCLEAR REACTORS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Citation Formats
Brune, C. R., Caggiano, J. A., Sayre, D. B., Bacher, A. D., Hale, G. M., and Paris, M. W. R-matrix description of particle energy spectra produced by low-energy 3H + 3H reactions. United States: N. p., 2015.
Web. doi:10.1103/PhysRevC.92.014003.
Brune, C. R., Caggiano, J. A., Sayre, D. B., Bacher, A. D., Hale, G. M., & Paris, M. W. R-matrix description of particle energy spectra produced by low-energy 3H + 3H reactions. United States. https://doi.org/10.1103/PhysRevC.92.014003
Brune, C. R., Caggiano, J. A., Sayre, D. B., Bacher, A. D., Hale, G. M., and Paris, M. W. Mon .
"R-matrix description of particle energy spectra produced by low-energy 3H + 3H reactions". United States. https://doi.org/10.1103/PhysRevC.92.014003. https://www.osti.gov/servlets/purl/1227123.
@article{osti_1227123,
title = {R-matrix description of particle energy spectra produced by low-energy 3H + 3H reactions},
author = {Brune, C. R. and Caggiano, J. A. and Sayre, D. B. and Bacher, A. D. and Hale, G. M. and Paris, M. W.},
abstractNote = {An R-matrix model for three-body final states is presented and applied to a recent measurement of the neutron energy spectrum from the 3H + 3H→ 2n + α reaction. The calculation includes the n alpha and n n interactions in the final state, angular momentum conservation, antisymmetrization, and the interference between different channels. A good fit to the measured spectrum is obtained, where clear evidence for the 5He ground state is observed. The model is also used to predict the alpha-particle spectrum from 3H + 3H as well as particle spectra from 3He + 3He. The R-matrix approach presented here is very general, and can be adapted to a wide variety of problems with three-body final states.},
doi = {10.1103/PhysRevC.92.014003},
journal = {Physical Review C, Nuclear Physics},
number = 1,
volume = 92,
place = {United States},
year = {Mon Jul 20 00:00:00 EDT 2015},
month = {Mon Jul 20 00:00:00 EDT 2015}
}
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