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.

引用

页数：9

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