Annihilation-Type Semileptonic B-Meson Decays

被引：1
作者：
Kuznetsova, Anna [1 ]
Parkhomenko, Alexander [1 ]
机构：
[1] PG Demidov Yaroslavl State Univ, Yaroslavl, Russia
来源：
XXIII INTERNATIONAL WORKSHOP HIGH ENERGY PHYSICS AND QUANTUM FIELD THEORY (QFTHEP 2017) | 2017年 / 158卷
基金：
俄罗斯基础研究基金会;
关键词：
QCD FACTORIZATION; AMPLITUDES;
D O I：
10.1051/epjconf/201715803003
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The rare semileptonic decay B-0 -> phi l(+)l(-), where l is an electron or muon, is considered in the QCD Factorization approach. The differential branching fraction, partially integrated over the interval q(2) = [1 GeV2, 8 GeV2] of dilepton invariant mass squared, is estimated. The systematic uncertainty up to 10% resulting from the choice of the B-meson distribution amplitude is determined. The purely perturbative contribution to the B-0 -> phi l(+)l(-) total branching fraction is found to be B similar to 10(-12) which suggests searches of the B-0 -> phi mu(+)mu(-) decay in the four-muon events at the LHC collider.
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