Vector quark model and [formula presented] decay

Research output: Contribution to journalArticle

Abstract

We study the B meson radiative decay (Formula presented) in the vector quark model. Deviation from the standard model arises from the nonunitarity of the charged current Kobayashi-Maskawa matrix and related new flavor changing neutral current interactions. We establish the relation between the nonunitarity of the charged current mixing matrix and the mixing among the vector quark and ordinary quarks. We also explicitly make the close connection between this nonunitarity and the flavor changing neutral currents. The complete calculation including the leading logarithmic QCD correction is carefully carried out. Using the most updated data and the next to leading order theoretical calculation, the branching fraction of the observed B meson radiative decay places a limit on the mixing angles as stringent as that from the process (Formula presented)

Original languageEnglish
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume61
Issue number5
DOIs
Publication statusPublished - 2000 Jan 1

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quark models
neutral currents
decay
mesons
quarks
matrices
quantum chromodynamics
deviation
interactions

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Cite this

Vector quark model and [formula presented] decay. / Chang, Chia Hung V.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 61, No. 5, 01.01.2000.

Research output: Contribution to journalArticle

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