Spectroscopy, decay properties and Regge trajectories of the B and Bs mesons

被引：25

作者：

Kher, Virendrasinh ^{[1
,2
]}

Devlani, Nayneshkumar ^{[1
]}

Rai, Ajay Kumar ^{[2
]}

机构：

[1] Polytech MS Univ Baroda, Dept Appl Phys, Vadodara 390002, Gujarat, India

[2] Sardar Vallabhbhai Natl Inst Technol, Dept Appl Phys, Surat 395007, Gujarat, India

来源：

CHINESE PHYSICS C | 2017年 / 41卷 / 09期

关键词：

potential model; mass spectrum; decay constant; Regge trajectories; RADIATIVE LEPTONIC DECAYS; HEAVY-QUARK; QCD; FACTORIZATION; MODEL; RARE;

D O I：

10.1088/1674-1137/41/9/093101

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 Gaussian wave function is used for detailed study of the mass spectra of the B and B-s mesons using a Cornell potential incorporated with a O(1/m) correction in the potential energy term and expansion of the kinetic energy term up to O(p(10)) for relativistic correction of the Hamiltonian. The predicted excited states for the B and B-s mesons are in very good agreement with results obtained by experiment. We assign B-2 (5747) and B-s2 (5840) as the 1(3)P(2) state, B-1(5721) and B-s1(5830) as the 1P(1) state, B-0(5732) as the 1(3)P(0) state, B-s1(5850) as the 1P(1)' state and B(5970) as the 2(3)S(1) state. We investigate the Regge trajectories in the (J,M-2) and (n(r),M-2) planes with their corresponding parameters. The branching ratios for leptonic and radiative-leptonic decays are estimated for the B and B-s mesons. Our results are in good agreement with experimental observations as well as outcomes of other theoretical models.

引用

页数：11

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