Break-up channels in muon capture on ${}^{3}\mathrm{He}$

Golak, J.; Skibiński, R.; Elmeshneb, A. E.; Witała, H.; Marcucci, L. E.; Kamada, H.; Nogga, A.; Topolnicki, K.

doi:10.1103/PhysRevC.90.024001

Journal Article

FZJ-2015-00675

Break-up channels in muon capture on ${}^{3}\mathrm{He}$

Golak, J. (Corresponding Author)FZJ* ; Skibiński, R. ; Witała, H. ; Topolnicki, K. ; Elmeshneb, A. E. ; Kamada, H. ; Nogga, A.FZJ* ; Marcucci, L. E.

2014
Inst. Woodbury, NY

Physical review / C 90(2), 024001 (2014) [10.1103/PhysRevC.90.024001]

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Please use a persistent id in citations: http://hdl.handle.net/2128/8371 doi:10.1103/PhysRevC.90.024001

Abstract: The μ−+2H→νμ+n+n, μ−+3He→νμ+3H, μ−+3He→νμ+n+d, and μ−+3He→νμ+n+n+p capture reactions are studied with various realistic potentials under full inclusion of final-state interactions. Our results for the two- and three-body break-up of He3 are calculated with a variety of nucleon-nucleon potentials, among which is the AV18 potential, augmented by the Urbana IX three-nucleon potential. Most of our results are based on the single-nucleon weak-current operator. As a first step, we tested our calculation in the case of the μ−+2H→νμ+n+n and μ−+3He→νμ+3H reactions, for which theoretical predictions obtained in a comparable framework are available. Additionally, we have been able to obtain for the first time a realistic estimate for the total rates of the muon capture reactions on He3 in the break-up channels: 544 s−1 and 154 s−1 for the n+d and n+n+p channels, respectively. Our results are compared with the most recent experimental data, finding a rough agreement for the total capture rates, but failing to reproduce the differential capture rates.

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