The QED nonfactorizable correction to the semileptonic charmed three-body B decays

被引：0
|
作者：
Yang, Yueling [1 ]
Wang, Liting [1 ]
Li, Jiazhi [1 ]
Chang, Qin [1 ]
Sun, Junfeng [1 ]
机构：
[1] Henan Normal Univ, Inst Particle & Nucl Phys, Xinxiang 453007, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL C | 2024年 / 84卷 / 12期
基金：
中国国家自然科学基金; 国家重点研发计划;
关键词：
QCD FACTORIZATION; MESON DECAYS; FORM-FACTORS; HEAVY;
D O I：
10.1140/epjc/s10052-024-13647-z
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：
In this paper, the nonfactorizable photonic corrections to the effective four-fermion vertex for the B -> D(& lowast;) + & ell;- + nu & ell; decays are considered at the quark level within SM, where & ell; = e, mu and tau. It is found that the QED corrections are closely related with the mass of the charged lepton. The QED contributions will enhance branching ratios, which results in the slight reduction of ratios R(D(& lowast;)) and the relationship R(D(& lowast;))(e) < R(D(& lowast;))(mu).
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页数：15
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