Electromagnetic and hadronic decay of fully heavy tetraquarks

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成果类型：

期刊论文

作者：

Sang, Wen-Long;Wang, Tao;Zhang, Yu-Dong;Feng, Feng

通讯作者：

Sang, WL

作者机构：

[Sang, Wen-Long; Wang, Tao] Southwest Univ, Sch Phys Sci & Technol, Chongqing 400700, Peoples R China.

[Zhang, Yu-Dong] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Hubei, Peoples R China.

[Zhang, Yu-Dong] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Hubei, Peoples R China.

[Feng, Feng] China Univ Min & Technol, Beijing 100083, Peoples R China.

[Feng, Feng] Inst High Energy Phys, Chinese Acad Sci, Beijing 100049, Peoples R China.

通讯机构：

[Sang, WL ] S

Southwest Univ, Sch Phys Sci & Technol, Chongqing 400700, Peoples R China.

语种：

英文

期刊：

PHYSICAL REVIEW D

ISSN：

2470-0010

年：

2024

卷：

109

期：

页码：

056016

DOI：

10.1103/PhysRevD.109.056016

基金类别：

National Natural Science Foundation of China#&#&#12375079#&#&#11975187#&#&#12135006#&#&#12075097#&#&#12275353#&#&#11875318 Natural Science Foundation of Chongqing#&#&#CSTB2023NSCQ-MSX0132 Fundamental Research Funds for the Central Universities#&#&#CCNU20TS007#&#&#CCNU22LJ004

机构署名：

本校为其他机构

院系归属：

物理科学与技术学院

摘要：

In this study, we compute the electromagnetic and hadronic decay widths of the S-wave fully heavy tetraquark T4Q (Q = c or b) at lowest order in alpha s and v, in the framework of nonrelativistic QCD. The short-distance coefficients are determined through the standard procedure of matching. The nonperturbative long-distance matrix elements are related to the phenomenological four-body Schrodinger wave functions at the origin, whose values are taken from literature. The branching fractions are predicted to be around 10-3 and 10-6 for the T4c hadronic decay and electromagnetic decay, respectivel...

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Electromagnetic and hadronic decay of fully heavy tetraquarks

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