Induced pseudoscalar coupling of the proton weak interaction

@article{Gorringe2003InducedPC,
  title={Induced pseudoscalar coupling of the proton weak interaction},
  author={T. P. Gorringe and Harold W. Fearing},
  journal={Reviews of Modern Physics},
  year={2003},
  volume={76},
  pages={31-91}
}
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 measurement represents an important test of quantum chromodynamics at low energies. Experiments over the past decade have produced a large body of new data relevant to the coupling ${g}_{p}.$ These data include measurements of radiative and nonradiative muon capture on targets ranging from hydrogen and… 
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