Relativistic treatment of light quarks in D and B mesons and W-exchange weak decays

Dennis Silverman, Herng Yao

研究成果: 雜誌貢獻文章同行評審

56 引文 斯高帕斯(Scopus)

摘要

A relativistic bound-state equation is applied to formulate the nonspectator (or W-exchange) decay rates of D, Ds, and B mesons, and their leptonic decay constants. The nonspectator decay rates are also calculated here in the Dirac-equation limit. In this limit we show that up to a logarithm the nonspectator rate grows with heavy-quark mass like m6, faster than the spectator rate of m5. Including an analysis of experimental D, D0, and Ds decay rates shows that the enhancement of D0 decays from the nonspectator diagram is about a quarter of the contribution from the spectator diagram. The relativistically calculated weak decay constant fB is in the 260300-MeV range. Predictions are also made for nonspectator B, Bs, and Bc decay rates &2.. AE

原文英語
頁(從 - 到)214-232
頁數19
期刊Physical Review D
38
發行號1
DOIs
出版狀態已發佈 - 1988 一月 1

ASJC Scopus subject areas

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

指紋 深入研究「Relativistic treatment of light quarks in D and B mesons and W-exchange weak decays」主題。共同形成了獨特的指紋。

引用此