6533b833fe1ef96bd129b5c5

RESEARCH PRODUCT

Muon capture revisited

P. Fernández De CórdobaH.c. ChiangE. Oset

subject

Coupling constantPhysicsNuclear and High Energy PhysicsParticle physicsNuclear TheoryForm factor (quantum field theory)Nuclear matterMuon captureNuclear physicsRenormalizationBibliographyLocal-density approximationNuclear ExperimentCommunication channel

description

Abstract The problem of inclusive muon capture in nuclei is studied by calculating the capture rate in asymmetric infinite nuclear matter and using the local density approximation to evaluate the capture rates in nuclei. It is shown that the method is rather reliable and allows one to improve on approximations used in the past. The need for a strong nuclear renormalization is shown, reducing the capture rates by about a factor two in medium and heavy nuclei. By using standard effective interactions in the spin-isospin channel one can account for this renormalization and one finds a remarkable overall agreement with the measured capture rates for a large list of nuclei through the periodic table.

https://doi.org/10.1016/0375-9474(90)90350-u