Lepton Flavor Universality Tests in Semileptonic b→c Decays

被引：0

作者：

Klaver, Suzanne ^{[1
,2
]}

Rotondo, Marcello ^{[3
]}

机构：

[1] Nikhef Natl Inst Subatom Phys, Sci Pk 105, NL-1098 XG Amsterdam, Netherlands

[2] Vrije Univ Amsterdam, Fac Sci, De Boelelaan 1105, NL-1081 HV Amsterdam, Netherlands

[3] INFN, Lab Nazl Frascati, Via Enrico Fermi 54, I-00054 Frascati, Italy

来源：

SYMMETRY-BASEL | 2024年 / 16卷 / 08期

基金：

荷兰研究理事会;

关键词：

semileptonic decays; flavor physics; lepton universality; B physics; CB-VERTICAL-BAR; FORM-FACTORS;

D O I：

10.3390/sym16080964

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Semileptonic decays of b- to c-hadrons provide an exciting environment to probe new physics and currently present some of the most compelling anomalies in the field of flavor physics. Measurements of the lepton flavor universality ratios R(D*), comparing branching fractions with tau and mu leptons, show a discrepancy of over 3 sigma with respect to the Standard Model, and suggest that the coupling to tau leptons is stronger than predicted. Measurements of angular distributions as well as polarization in b- to c-hadron decays provide additional sensitivity to new physics. This review article offers an overview of the theory of semileptonic b- to c-hadron decays, presents the experiments and experimental techniques used to perform measurements of these decays, and summarizes the latest experimental results with their implications.

引用

页数：26

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