Theoretical Analysis of Rare Decay B+ → π+τ+τ-

被引：0
|
作者：
Parnova, I. M. [1 ]
Parkhomenko, A. Ya. [1 ]
机构：
[1] PG Demidov Yaroslavl State Univ, Yaroslavl 150003, Russia
来源：
PHYSICS OF PARTICLES AND NUCLEI LETTERS | 2023年 / 20卷 / 05期
基金：
俄罗斯科学基金会;
关键词：
D O I：
10.1134/S1547477123050606
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
Rare B-meson decays induced by the Flavor-Changing Neutral Current b -> s(d) transitions provide a stringent test of the SM in physics of quark flavors. Being loop-induced in the SM, they are suppressed and effects of New Physics can increase substantially their decay widths. Here, we consider the rare decay B+ -> pi(+)tau(+)tau(-). We present its dilepton invariant-mass distribution and decay width calculated in the Effective Electroweak Hamiltonian approach for different types of the B -> pi formfactor parameterizations. The ratio of the tauonic to muonic decay widths, R-pi(tau/mu), is also theoretically predicted.
引用
收藏
页码：1150 / 1152
页数：3
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