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
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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