Resonant state D0*(2400) in the quasi-two-body B meson decays

被引：14

作者：

Wang, Wen-Fei ^{[1
,2
]}

机构：

[1] Shanxi Univ, Inst Theoret Phys, Taiyuan 030006, Shanxi, Peoples R China

[2] Shanxi Univ, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Shanxi, Peoples R China

来源：

PHYSICS LETTERS B | 2019年 / 788卷

基金：

美国国家科学基金会;

关键词：

HEAVY MESONS; PI-PI; CONSTANTS; CHARM; RHO;

D O I：

10.1016/j.physletb.2018.11.054

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study four quasi-two-body decay processes including D-0*(2400) as the intermediate state in the perturbative QCD (PQCD) approach. The branching fraction predicted in this work for the decay mode B- -> D-0*(2400)(0) pi(-) -> D+pi(-) pi(-) agree with the data from Belle, BaBar and LHCb Collaborations. The PQCD prediction of the branching ratio for the decay (B) over bar (0)-> D-0*(+) K--> D-0 pi K-+(-) is consistent with the value given by LHCb. For the decays (B) over bar (0)-> D-0(*+) pi(-) and B--> D-0*K-0(-)-> D+pi K--(-), the PQCD predicted branch ratios are 2.85(-)(0.80)(+1.23)(omega(B))(-0.81)(+1.05)(omega(D pi))(-0.31)(+0.33)(alpha(D pi))(-0.05)(+0.06)(Gamma(D0)*(+-)) x 10(-4) and 4.65 (+1.89)(-1.30)(omega(B))(-1.2)(+1.51)(4)(omega(D pi))(-0.38)(+0.40)(alpha(D pi))(-0.18)(+0.22) (Gamma(D0)*(+-)) x10(-5 ), respectively. We analyze the experimental branching fractions using the ratios R-D0*(0) e and R-D0*(+) which are related to the decays with the neutral and charged N(2400), respectively. The available experimental results for the quasi-two-body decays including D-0* (2400) are not in agreement with the isospin relation and SU(3) flavor symmetry. (C) 2018 The Author(s). Published by Elsevier B.V.

引用

页码：468 / 474

页数：7

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