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Muon capture by 3He nuclei followed by proton and deuteron production | | V.M.Bystritsky
; V.F.Boreiko
; M.Filipowicz
; V.V.Gerasimov
; O.Huot
; P.E.Knowles
; F.Mulhauser
; V.N.Pavlov
; L.A.Schaller
; H.Schneuwly
; V.G.Sandukovsky
; V.A.Stolupin
; V.P.Volnykh
; J.Wozniak
; | | Date: |
27 Jul 2003 | | Journal: | Phys.Rev. A69 (2004) 012712 | | Subject: | nucl-ex | | Abstract: | The paper describes an experiment aimed at studying muon capture by ${}^{3}mathrm{He}$ nuclei in pure ${}^{3}mathrm{He}$ and $mathrm{D}_2 + {}^{3}mathrm{He}$ mixtures at various densities. Energy distributions of protons and deuterons produced via $mu^-+{}^{3}mathrm{He} o p+n+n +
u_{mu }$ and $mu^-+{}^{3} mathrm{He} o d+n +
u_{mu}$ are measured for the energy intervals $10 - 49$ MeV and $13 - 31$ MeV, respectively. Muon capture rates, $lambda_mathrm{cap}^p (Delta E_p)$ and $lambda_mathrm{cap}^d (Delta E_d)$ are obtained using two different analysis methods. The least--squares methods gives $lambda_mathrm{cap}^p = (36.7pm 1.2) {s}^{- 1}$, $lambda_mathrm{cap}^d = (21.3 pm 1.6) {s}^{- 1}$. The Bayes theorem gives $lambda_mathrm{cap}^p = (36.8 pm 0.8) {s}^{- 1}$, $lambda_mathrm{cap}^d = (21.9 pm 0.6) {s}^{- 1}$. The experimental differential capture rates, $dlambda_mathrm{cap}^p (E_p) / dE_p $ and $ dlambda_mathrm{cap}^d (E_d) / dE_d$, are compared with theoretical calculations performed using the plane--wave impulse approximation (PWIA) with the realistic NN interaction Bonn B potential. Extrapolation to the full energy range yields total proton and deuteron capture rates in good agreement with former results. | | Source: | arXiv, nucl-ex/0307020 | | Services: | Forum | Review | PDF | Favorites | |
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