Diffusion radius of muonic hydrogen atoms in H-D gas

Abstract

The diffusion radius of the 1S muonic hydrogen atoms in gaseous H_2 targets with various deuterium admixtures has been determined for temperatures T=30 and 300 K. The Monte Carlo calculations have been performed using the partial differential crosssections for $p\mu$ and $d\mu$ atom scattering from the molecules H${}_2$, HD and D${}_2$. These cross sections include hyperfine transitions in the muonic atoms, the muon exchange between the nuclei $p$ and $d$, and rotational-vibrational transitions in the target molecules. The Monte Carlo results have been used for preparing the time-projection chamber for the high-precision measurement of the nuclear ${\mu }^{-}$ capture in the ground-state $p\mu$ atom, which is now underway at the Paul Scherrer Institute.

8 pages, 10 figures, 1 table

References in corpus (2)

• Induced pseudoscalar coupling of the proton weak interaction
• Differential cross sections for muonic atom scattering from hydrogenic molecules

Cited by in corpus (5)

• A Circulating Hydrogen Ultra-High Purification System for the MuCap Experiment
• Measurement of the Formation Rate of Muonic Hydrogen Molecules
• Muonic atom spectroscopy with microgram target material
• Theoretical and computational study of the energy dependence of the muon transfer rate from hydrogen to higher-Z gases
• Adiabatic expansion approximation solutions for the three-body problem