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Measurement of helium-3 and deuterium stopping power ratio for negative muons

V. M. Bystritsky·V. V. Gerasimov·J. Wozniak
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Abstract

The measurement method and results measuring of the stopping power ratio of helium-3 and deuterium atoms for muons slowed down in the D/$^3$He mixture are presented. Measurements were performed at four values of pure $^3$He gas target densities, $ϕ_{He} = 0.0337, 0.0355, 0.0359, 0.0363$ (normalized to the liquid hydrogen density) and at a density 0.0585 of the D/$^3$He mixture. The experiment was carried out at PSI muon beam $μ$E4 with the momentum P$μ=34.0$ MeV/c. The measured value of the mean stopping ratio $S_{^3He/D}$ is $1.66\pm 0.04$. This value can also be interpreted as the value of mean reduced ratio of probabilities for muon capture by helium-3 and deuterium atoms.

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V. M. Bystritsky, V. V. Gerasimov, J. Wozniak. 2006-07-07. Measurement of helium-3 and deuterium stopping power ratio for negative muons. https://doi.org/10.1103/physrevlett.97.12001

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