Pc(4457)Interpreted as a Jp=1/2+State by(D)0Λc+(2595)-π0Pc(4312)Interaction

吴金姿 ¹庞锦毅 ²吴佳俊³

扫码查看

作者信息

1. School of Physics Sciences,University of Chinese Academy of Sciences,Beijing 100049,China;Columbian College of Arts & Sciences,George Washington University,801 22nd St.NW Washington DC 20052,USA
2. College of Science,University of Shanghai for Science and Technology,Shanghai 200093,China
3. School of Physics Sciences,University of Chinese Academy of Sciences,Beijing 100049,China;Southern Center for Nuclear-Science Theory,Institute of Modern Physics,Chinese Academy of Sciences,Huizhou 516000,China
折叠

Abstract

Pc(4457)has been discovered over five years,but the parity of this particle remains undetermined.We propose a new interpretation for Pc(4457),which is the state generated from the coupled-channel(D)0Λc+(2595)and π0Pc(4312)since they can exchange an almost on-shell ∑+c.In this scenario,the parity of Pc(4457)will be positive,which is different from the candidate of the bound state of(D)*∑c.The main decay channel of Pc(4457)in this model is Pc(4312)π.We propose three processes A0b → J/ψKspπ-,Λ0b → J/ψK-pπ0,and A0b → J/ψpπ-π+K-to verify Pc(4457)→ Pc(4312)π.

引用本文复制引用

基金项目

National Natural Science Foundation of China(12175239)

National Natural Science Foundation of China(12135011)

National Natural Science Foundation of China(12221005)

National Key Research and Development Program of China(2020YFA0406400)

Chinese Academy of Sciences(YSBR-101)

Xiaomi Foundation/Xiaomi Young Talents Program()

出版年

2024

中国物理快报(英文版)

中国科学院物理研究所,中国物理学会

中国物理快报(英文版)

CSTPCDCSCDEI

影响因子：0.515

ISSN：0256-307X

参考文献量49

段落导航