Muon capture by {sup 3}He nuclei followed by proton and deuteron production

Journal Article · Thu Jan 01 04:00:00 EST 2004 · Physical Review. A

DOI:https://doi.org/10.1103/PhysRevA.69.012712· OSTI ID:20640614

Bystritsky, V M; Boreiko, V F; Gerasimov, V V; Pavlov, V N; Sandukovsky, V G; Stolupin, V A; Volnykh, V P ^[1]; Filipowicz, M ^[2]; Huot, O; Knowles, P E; Mulhauser, F; Schaller, L A; Schneuwly, H ^[3]; Wozniak, J ^[4]

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1. Joint Institute for Nuclear Research, Dubna 141980 (Russian Federation)
2. Faculty of Fuels and Energy, University of Mining and Metallurgy, PL-30059 Cracow (Poland)
3. Department of Physics, University of Fribourg, CH-1700 Fribourg (Switzerland)
4. Faculty of Physics and Nuclear Techniques, University of Mining and Metallurgy, PL-30059 Cracow (Poland)

The paper describes an experiment aimed at studying muon capture by {sup 3}He nuclei in pure {sup 3}He and D{sub 2}+{sup 3}He mixtures at various densities. Energy distributions of protons and deuterons produced via {mu}{sup -}+{sup 3}He{yields}p+n+n+{nu}{sub {mu}} and {mu}{sup -}+{sup 3}He{yields}d+n+{nu}{sub {mu}} are measured for the energy intervals 10-49 MeV and 13-31 MeV, respectively. Muon capture rates {lambda}{sub cap}{sup p}({delta}E{sub p}) and {lambda}{sub cap}{sup d}({delta}E{sub d}) are obtained using two different analysis methods. The least-squares methods give {lambda}{sub cap}{sup p}=(36.7{+-}1.2) s{sup -1}, {lambda}{sub cap}{sup d}=(21.3{+-}1.6) s{sup -1}. The Bayes theorem gives {lambda}{sub cap}{sup p}=(36.8{+-}0.8) s{sup -1}, {lambda}{sub cap}{sup d}=(21.9{+-}0.6) s{sup -1}. The experimental differential capture rates, d{lambda}{sub cap}{sup p}(E{sub p})/dE{sub p} and d{lambda}{sub cap}{sup d}(E{sub d})/dE{sub d}, are compared with theoretical calculations performed using the plane-wave impulse approximation with the realistic nearest-neighbor interaction Bonn B potential. Extrapolation to the full energy range yields total proton and deuteron capture rates in good agreement with former results.

• OSTI ID: 20640614
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 69; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
74 ATOMIC AND MOLECULAR PHYSICS
CAPTURE
DEUTERIUM
DEUTERONS
DISTRIBUTION
ENERGY DENSITY
EXCITED STATES
EXTRAPOLATION
HELIUM
HELIUM 3
IMPULSE APPROXIMATION
LEAST SQUARE FIT
MEV RANGE
MIXTURES
MUON NEUTRINOS
MUONIC ATOMS
MUONIC MOLECULES
MUONS MINUS
POTENTIALS
PROTONS
YIELDS