EPJ Web Conf.
Volume 138, 2017XXIII International Baldin Seminar on High Energy Physics Problems Relativistic Nuclear Physics and Quantum Chromodynamics (Baldin ISHEPP XXIII)
|Number of page(s)||6|
|Section||Hadron spectroscopy, multiquarks|
|Published online||27 March 2017|
Study of heavy exotic baryon resonances
1 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P. R. China
2 Theoretical Physics Center for Science Facilities (TPCSF), CAS, Beijing 100049, P. R. China
Published online: 27 March 2017
The possible production of the neutral Pc(4380) and Pc(4450) in the J-PARC experiment is discussed. Different spin-parity assignments of the Pc states are considered and differential cross sections of π−p → J/ψp are calculated. Moreover, the strong decays of Pc → J/ψp are estimated based on a ΣcD̄* molecular scenario. Our results disfavor all the P − wave ΣcD̄* assignments, while favor the S − wave ΣcD̄* picture of the two Pc states comparing to the experimental data. In addition, we also analyze the possible JP =3/2− state in Σc*D̄ and Σc*D̄* pictures with heavy quark limit.
© The Authors, published by EDP Sciences, 2017
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