首页|Pc(4457)Interpreted as a Jp=1/2+State by(D)0Λc+(2595)-π0Pc(4312)Interaction
Pc(4457)Interpreted as a Jp=1/2+State by(D)0Λc+(2595)-π0Pc(4312)Interaction
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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.
吴金姿、庞锦毅、吴佳俊
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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
College of Science,University of Shanghai for Science and Technology,Shanghai 200093,China
Southern Center for Nuclear-Science Theory,Institute of Modern Physics,Chinese Academy of Sciences,Huizhou 516000,China
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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Key Research and Development Program of ChinaChinese Academy of SciencesXiaomi Foundation/Xiaomi Young Talents Program
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