Contributions of K0* (1430) and K0* (1950) in the three-body decays B → Kπh

被引：0
|
作者：
Wang, Wen-Fei [1 ,2 ]
Chai, Jian [1 ,2 ]
Ma, Ai-Jun [3 ]
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
[3] Nanjing Inst Technol, Dept Math & Phys, Nanjing 211167, Jiangsu, Peoples R China
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2020年 / 03期
基金：
中国国家自然科学基金;
关键词：
B physics; Branching fraction; CP violation; Flavor physics; Hadron-Hadron scattering (experiments); FINAL-STATE INTERACTIONS; FORM-FACTORS; MULTIQUARK HADRONS; CP ASYMMETRIES; U-SPIN; CONSTRAINTS; SCATTERING; VIOLATION; A(0)(980); BREAKING;
D O I：
10.1007/JHEP03(2020)162
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 study the contributions of the resonant states K-0*(1430) and K-0*(1950) in the three-body decays B -> K pi h (with h = pi, K) in the perturbative QCD approach. The crucial nonperturbative input F-K pi(s) in the distribution amplitudes of the S-wave K pi system is derived from the matrix element of vacuum to K pi pair. The C P averaged branching fraction of the quasi-two-body decay process B -> K-0* (1950) h -> K pi h is about one order smaller than that of the corresponding decay B -> K-0* (1430)h -> K pi h. In view of the important contribution from the S-wave K pi system for the B -> K pi h decays, it is not appropriate to neglect the K-0* (1950) in the theoretical or experimental studies for the relevant three-body B meson decays. The predictions in this work for the relevant decays are consistent with the existing experimental data.
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页数：37
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