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词条 Muon capture
释义

  1. References

Muon capture is the capture of a negative muon by a proton, usually resulting in production of a neutron and a neutrino, and sometimes a gamma photon.

Muon capture by heavy nuclei often leads to emission of particles; most often neutrons, but charged particles can be emitted as well.

Ordinary muon capture (OMC) involves capture of a negative muon from the atomic orbital without emission of a gamma photon:

{{SubatomicParticle|muon}} + {{SubatomicParticle|Proton+}} → {{SubatomicParticle|Neutrino}}μ + {{SubatomicParticle|Neutron0}}

Radiative muon capture (RMC) is a radiative version of OMC, where a gamma photon is emitted:

{{SubatomicParticle|muon}} + {{SubatomicParticle|Proton+}} → {{SubatomicParticle|Neutrino}}μ + {{SubatomicParticle|Neutron0}} + {{SubatomicParticle|Gamma}}

One motivation for the study of muon capture on the proton is its connection to the proton's induced pseudoscalar form factor gp.

References

  • {{cite journal | author=T. Gorringe and H.W. Fearing | title= Induced pseudoscalar coupling of the proton weak interaction | journal=Rev. Mod. Phys. | year=2004 | volume=76 | issue= 1 | pages= 31–91 | arxiv=nucl-th/0206039 | doi= 10.1103/RevModPhys.76.31 |bibcode = 2003RvMP...76...31G }}
  • {{cite journal | author=V.A. Andreev| title= Measurement of the Rate of Muon Capture in Hydrogen Gas and Determination of the Proton's Pseudoscalar Coupling gP | year=2007 | arxiv=0704.2072 |display-authors=etal | doi=10.1103/PhysRevLett.99.032002 | pmid= 17678281 | volume=99 | issue= 3 | pages= 032002 | journal=Physical Review Letters | bibcode=2007PhRvL..99c2002A}}
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1 : Nuclear physics

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