LIFETIMES AND BRANCHING FRACTIONS OF MESONS WITH HEAVY-QUARK CONSTITUENTS

被引：4

作者：

BARGER, V ^{[1
]}

LONG, WF ^{[1
]}

PAKVASA, S ^{[1
]}

机构：

[1] UNIV WISCONSIN,DEPT PHYS,MADISON,WI 53706

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 1979年 / 5卷 / 10期

关键词：

D O I：

10.1088/0305-4616/5/10/001

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The authors calculate lifetimes and inclusive branching fractions based on (i) heavy-quark decays with gluon corrections and (ii) weak-current mixing angles from analysis of K0-K0 mixing and CP violation. The authors' predictions are 3.6*10-13< tau (m D)<6.6*10-13, 0.9*10-14< tau (mB=5 GeV)<1.2*10-13, 1.6*10 -19< tau (mT=9-30 GeV)<4*10-16, and Gamma (D to eX)/ Gamma /D to all)=0.11. Bounds on quark coupling ratios and inclusive widths are also given.

引用

页码：L147 / L153

页数：7

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