Theoretical study of scalar meson a0(1710) in the ηc → <overline>K0K+π- reaction

被引：4
|
作者：
Ding, Yan [1 ]
Zhang, Xiao-Hui [1 ]
Dai, Meng-Yuan [1 ]
Wang, En [1 ,2 ]
Li, De-Min [1 ]
Geng, Li-Sheng [2 ,3 ,4 ,5 ]
Xie, Ju-Jun [5 ,6 ,7 ,8 ]
机构：
[1] Zhengzhou Univ, Sch Phys & Microelect, Zhengzhou 450001, Henan, Peoples R China
[2] Guangxi Normal Univ, Guangxi Key Lab Nucl Phys & Nucl Technol, Guilin 541004, Peoples R China
[3] Beihang Univ, Sch Phys, Beijing 102206, Peoples R China
[4] Beihang Univ, Beijing Key Lab Adv Nucl Mat & Phys, Beijing 102206, Peoples R China
[5] Beihang Univ, Peng Huanwu Collaborat Ctr Res & Educ, Beijing 100191, Peoples R China
[6] Chinese Acad Sci, Inst Modern Phys, Southern Ctr Nucl Sci Theory SCNT, Huizhou 516000, Peoples R China
[7] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
[8] Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 101408, Peoples R China
来源：
PHYSICAL REVIEW D | 2023年 / 108卷 / 11期
基金：
中国国家自然科学基金;
关键词：
F(0)(1710); J/PSI;
D O I：
10.1103/PhysRevD.108.114004
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We investigate the process eta c -> over bar K0K+pi- by taking into account the S-wave K* over bar K* and rho omega interactions within the unitary coupled-channel approach, where the scalar meson a0(1710) is dynamically generated. In addition, the contributions from the intermediate resonances K*0(1430)- -> over bar K0 pi- and K*0(1430)0 -> K+ pi- are also considered. We find a significant dip structure around 1.8 GeV, associated to the a0(1710), in the over bar K0K+ invariant mass distribution, and the clear peaks of the K*0(1430) in the over bar K0 pi- and K+ pi- invariant mass distributions, consistent with the BABAR measurements. We further estimate the branching fractions B(eta c -> over bar K*0K*+ pi-) = 5.5 x 10-3 and B(eta c -> omega rho+ pi-) = 7.9 x 10-3. Our predictions can be tested by the BESIII and Belle II experiments in the future.
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页数：9
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