Leptonic Decays of Heavy Vector and Pseudoscalar Mesons

被引：4
|
作者：
Zhou, Bin-Bin [1 ,2 ]
Sun, Jia-Jia [1 ,2 ]
Zhang, Yu-Jie [1 ,2 ,3 ]
机构：
[1] Beihang Univ, Beijing Key Lab Adv Nucl Energy Mat & Phys, Beijing 100191, Peoples R China
[2] Beihang Univ, Sch Phys, Beijing 100191, Peoples R China
[3] CAS Ctr Excellence Particle Phys, Beijing 100049, Peoples R China
来源：
COMMUNICATIONS IN THEORETICAL PHYSICS | 2017年 / 67卷 / 06期
基金：
中国国家自然科学基金;
关键词：
leptonic decay; vector mesons; pseudoscalar mesons; MU(+) MU(-); SPECTRA; QUARK; MODEL;
D O I：
10.1088/0253-6102/67/6/655
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Pure leptonic decays of D*(0) (B-s*, B-d*) -> l(+)l(-) and D-+/-*(D-s*, B*(+), B-c*) -> lv(l) are investigated. The hadronic contributions such as D-0 -> D*(0)gamma -> mu(+)mu(-) are also explored. We then obtain the updated branching fractions of the pseudoscalar mesons to lepton pairs are modified by a factor of few percentages. Specifically, the Br (B+ -> e(+) v(e)) is reduced by a factor 13%.
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页码：655 / 660
页数：6
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