Lepton flavor violating B → K2* (1430) μ±τ± decays

被引：2
作者：
Kumbhakar, Suman [1 ]
Sain, Ria [2 ]
Vardani, Juhi [3 ]
机构：
[1] Univ Montreal, Phys Particules, 1375 Ave Therese Lavoie Roux, Montreal, PQ H2V 0B3, Canada
[2] Indian Inst Technol Guwahati, Dept Phys, Gauhati 781039, Assam, India
[3] Indian Inst Technol Jodhpur, Jodhpur 342037, India
来源：
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2023年 / 50卷 / 09期
基金：
加拿大自然科学与工程研究理事会;
关键词：
B physics; angular distribution; lepton flavor violation; leptoquark; LAMBDA(B); PHYSICS;
D O I：
10.1088/1361-6471/ace923
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
A number of measurements in decays induced by the semileptonic b -> s and b -> c transitions hint towards a possible role of new physics in both sectors. Motivated by these anomalies, we investigate the lepton flavor violating B -> K-2*(1430) mu(+/-)tau(+/-) decays. We calculate the two-fold angular distribution of B -> K-2*l(1)l(2) decay in the presence of vector, axial-vector, scalar and pseudo-scalar new physics interactions. We then compute the branching fraction and lepton forward-backward asymmetry in the framework of U-1(2/3) vector leptoquark which is a viable solution to the current B anomalies. We find that the upper limits are (B -> K-2*mu(-)tau(+)) <= 1.64 x 10(-7) and B(B -> K-2*mu(+)tau(-)) <= 0.60 x 10(-7) at 90% C.L.
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页数：13
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