R-matrix description of particle energy spectra produced by low-energy 3H + 3H reactions
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:
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[1]
; [2]
; [2]
; [3]
; [4]
; [4]
- 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:
- Grant/Contract Number:
- FG02-88ER40387; NA0001837; AC52-06NA25396; AC52-07NA27344
- 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)
- Research Org:
- Ohio Univ., Athens, OH (United States)
- Sponsoring Org:
- USDOE
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 22 GENERAL STUDIES OF NUCLEAR REACTORS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
- OSTI Identifier:
- 1227123
- Alternate Identifier(s):
- OSTI ID: 1196452
- Free Publicly Accessible Full Text
- Accepted Manuscript (Publisher)
-
Accepted Manuscript (DOE)
- Publisher's Version of Record
- https://doi.org/10.1103/PhysRevC.92.014003