Are the a0(1710) or a0(1817) resonances in the Ds+-K0SK+p0 decay?

被引：9

作者：

Wang, Zhong-Yu ^{[1
,2
,3
]}

Peng, Yu-Wen ^{[4
]}

Yi, Jing-Yu ^{[5
]}

Luo, W. C. ^{[4
]}

Xiao, C. W. ^{[4
,6
]}

机构：

[1] Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China

[2] Lanzhou Univ, Lanzhou Ctr Theoret Phys, Key Lab Theoret Phys Gansu Prov, Lanzhou 730000, Gansu, Peoples R China

[3] Lanzhou Univ, Key Lab Quantum Theory & Applicat, MoE, Lanzhou 730000, Gansu, Peoples R China

[4] Cent South Univ, Sch Phys & Elect, Hunan Key Lab Nanophoton & Devices, Changsha 410083, Peoples R China

[5] Hunan Univ, Sch Phys & Elect, Changsha 410082, Peoples R China

[6] Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China

来源：

PHYSICAL REVIEW D | 2023年 / 107卷 / 11期

基金：

中国国家自然科学基金;

关键词：

SCALAR; F(0)(980); MESONS; AMPLITUDES; F(0)(500); DYNAMICS; J/PSI; D-0;

D O I：

10.1103/PhysRevD.107.116018

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The BESIII Collaboration claimed that a new a0(1817) resonance was found in the recent results of the D+s -K0SK+ & pi;0 decay. For this decay process, we perform a unitary amplitude to analyze the contributions of the states a0(980)+ and a0(1710)+ with the final state interactions. Considering the Cabibbo-favored external and internal W-emission mechanisms at the quark level, and the contributions of the resonances a0(980)+, a0(1710)+ in the S wave and over bar K*(892)0, K*(892)+ in the P wave, the recent experimental data of the K0SK+ invariant mass spectrum from the BESIII Collaboration can be described well. In our results, the states a0(980) and a0(1710) are dynamically generated from the final state interactions of KK over bar and K* over bar K*, respectively, which support the molecular nature for them. Moreover, some obtained branching fractions are in agreement with the experimental measurements.

引用

页数：12

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