Relativistic Effects in Muon Capture by Complex Nuclei
- 12 April 1965
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 138 (1B), B86-B92
- https://doi.org/10.1103/physrev.138.b86
Abstract
Relativistic contributions to muon capture by complex nuclei are considered. For the total rate calculated for a Fermi gas in the closure approximation these contributions increase the rate by about 15% for elements between Ca and Pb. The neutron asymmetry (with respect to the muon spin direction) near the top of the neutron spectrum is decreased in magnitude from a value of about -0.4 to about -0.1 by these contributions. A calculation using the Fermi-gas model for indicates that the neutron asymmetry has a magnitude less than 0.15 for all neutron energies, a result which is in disagreement with experiment.
Keywords
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