Palatable leptoquark scenarios for lepton flavor violation in exclusive b → sl1l2 modes

被引：120
作者：
Becirevic, D. [1 ,2 ]
Kosnik, N. [3 ,4 ]
Sumensari, O. [1 ,2 ,5 ]
Zukanovich Funchal, R. [5 ]
机构：
[1] CNRS, Lab Phys Theor, Bat 210, F-91405 Orsay, France
[2] Univ Paris Saclay, Univ Paris Sud, F-91405 Orsay, France
[3] Univ Ljubljana, Dept Phys, Jadranska 19, Ljubljana 1000, Slovenia
[4] Jozef Stefan Inst, Jamova 39,POB 3000, Ljubljana 1001, Slovenia
[5] Univ Sao Paulo, Inst Fis, CP 66-318, BR-05315970 Sao Paulo, Brazil
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2016年 / 11期
基金：
巴西圣保罗研究基金会;
关键词：
Beyond Standard Model; Effective field theories; DECAY FORM-FACTORS; CONE SUM-RULES; R-K; PHYSICS;
D O I：
10.1007/JHEP11(2016)035
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：
We examine various scenarios that involve a light (1 TeV) leptoquark state and select those which are compatible with the current experimental values for a"not sign(B (s) -> mu mu), , and which lead to predictions consistent with other experimental data. We show that two such scenarios are phenomenologically plausible, namely the one with a doublet of scalar leptoquarks of hypercharge 1/6, and the one with a triplet of vector leptoquarks of hypercharge 2/3. We also argue that a model with a singlet scalar leptoquark of hypercharge 1/3 is not viable. Using the present experimental data as constraints, it is shown that the exclusive lepton flavor violating decays, a"not sign(B (s) -> mu tau), a"not sign(B -> K mu tau) and a"not sign(B -> K (au) mu tau), can be as large as O(10(-5)).
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页数：31
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