Comment on calculations of theKL→μμ¯decay rate in gauge theories | Zendy

Mary K. Gaillard | Zendy; Benjamin W. Lee | Zendy; Robert Shrock | Zendy

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Comment on calculations of theKL→μμ¯decay rate in gauge theories

Author(s) -

Mary K. Gaillard,

Benjamin W. Lee,

Robert Shrock

Publication year - 1976

Publication title -

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

Language(s) - English

Resource type - Journals

eISSN - 1089-4918

pISSN - 0556-2821

DOI - 10.1103/physrevd.13.2674

Subject(s) - physics , particle physics , quark

A modified calculation of the decay rate for K/sub L//sup o/ to mu /sup +/ mu /sup -/ in the Weinberg-Salam theory with GIM charm and free quarks is presented. The corrected result is consistent with that of Flambaum and others, but a difference over the Ward-Takahashi identity remains. The main conclusion that two photon exchange provides the principal mechanism for the decay is unaffected. The case of interacting quarks in an asymptotically free theory is also investigated, yielding results consistent with those of Nanopoulos and Ross rather than those of Vainshtein et al. (4 refs)

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