Capture rate and neutron helicity asymmetry for ordinary muon capture on hydrogen

@article{Ando2000CaptureRA,
title={Capture rate and neutron helicity asymmetry for ordinary muon capture on hydrogen},
author={Shung-ichi Ando and Fred Myhrer and Kuniharu Kubodera},
journal={Physical Review C},
year={2000},
volume={63},
pages={015203}
}
• Published 1 August 2000
• Physics
• Physical Review C
Applying heavy-baryon chiral perturbation theory to ordinary muon capture (OMC) on a proton, we calculate the capture rate and neutron helicity asymmetry up to nextto-next-to-leading order. For the singlet hyperfine state, we obtain the capture rate 0 = 695 sec −1 while, for the triplet hyperfine state, we obtain the capture rate 1 = 11.9 sec −1 and the neutron asymmetry α1 = 0.93. If the existing formalism is used to relate these atomic capture rates to liq, the OMC rate in liquid hydrogen…

Figures and Tables from this paper

Muon Capture on the Deuteron -- The MuSun Experiment
We propose to measure the rate \Rd\ for muon capture on the deuteron to better than 1.5% precision. This process is the simplest weak interaction process on a nucleus that can both be calculated and
Nuclear Muon Capture in Hydrogen Isotopes
We present two precision experiments in nuclear muon capture which are performed at PSI’s 600 MeV proton accelerator. The muon capture rates in hydrogen and deuterium are measured using the lifetime
Precise Measurement of Muon Capture on the Proton
The aim of the μCap experiment is a 1% measurement of the singlet capture rate ΛS for the basic electro-weak reaction μ + p → n + νμ. This observable is sensitive to the weak form-factors of the
Precision Muon Capture
• Physics
• 2010
A new generation of experiments is studying muon capture on hydrogen, deuterium, and 3He with significantly improved precision using a novel active-target method. At the same time, chiral effective
The μ−d capture rate in effective field theory
• Physics
• 2002
Abstract Muon capture on the deuteron is studied in a framework that essentially incorporates heavy baryon chiral perturbation theory (HBχPT). It is found that by far the dominant contribution to μd
An update of muon capture on hydrogen
• Physics
• 2014
The successful precision measurement of the rate of muon capture on a proton by the MuCap Collaboration allows for a stringent test of the current theoretical understanding of this process. Chiral
Neutrino pion-production on a nucleon
Heavy baryon chiral perturbation theory ($\chi$PT), where the $\Delta$ resonance is included, is used in order to examine the axial charged-current component of the weak interaction process at low
Induced pseudoscalar coupling of the proton weak interaction
• Physics
• 2003
The induced pseudoscalar coupling ${g}_{p}$ is the least well known of the weak couplings of the proton's charged-current interaction. Its size is dictated by chiral symmetry arguments, and its
P o S ( C D 1 2 ) 0 1 6 Precision Muon Capture at PSI
The muon capture program at PSI is reviewed. Its focus is on hydrogen and deuterium, where theoretical predictions based on first principle calculations within chiral effective field theory are
Transmutations Involving the Di-neutron in Condensed Matter
It has been recently revealed how a lattice bound proton, in an electrochemical cathode, can absorb a relativistic electron yielding a neutron. There is no longer much doubt that the analogous

References

SHOWING 1-10 OF 36 REFERENCES
Nucl
• Phys. A 384
• 1982
Phys
• Rev. 134
• 1964
Phys
• Lett. B 417
• 1998
PSI proposal R-97-05.1
• 1996
Phys
• Rev. C 21
• 1980
Phys
• Rev. Lett. 4
• 1960
Phys
• Rev. D 35
• 1987
Particle Data Group)
• Eur. Phys. Jour. C
• 2000
Particle Data Group), Eur. Phys. Jour
• C
• 2000
Nucl
• Phys. B 556
• 1999