Study of heavy exotic baryon resonances

Yubing Dong; Qi-Fang Lü

doi:10.1051/epjconf/201713804001

All issues

Volume 138 (2017)

EPJ Web Conf., 138 (2017) 04001

Abstract

Open Access

Issue		EPJ Web Conf. Volume 138, 2017 XXIII International Baldin Seminar on High Energy Physics Problems Relativistic Nuclear Physics and Quantum Chromodynamics (Baldin ISHEPP XXIII)


Article Number		04001
Number of page(s)		6
Section		Hadron spectroscopy, multiquarks
DOI		https://doi.org/10.1051/epjconf/201713804001
Published online		27 March 2017

EPJ Web of Conferences 138, 04001 (2017)
https://doi.org/10.1051/epjconf/201713804001

Study of heavy exotic baryon resonances

Yubing Dong¹^,2^,*^,** and Qi-Fang Lü¹^***

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

^** e-mail: dongyb@ihep.ac.cn
^*** e-mail: lvqifang@ihep.ac.cn

Published online: 27 March 2017

Abstract

The possible production of the neutral P_c(4380) and P_c(4450) in the J-PARC experiment is discussed. Different spin-parity assignments of the P_c states are considered and differential cross sections of π⁻p → J/ψp are calculated. Moreover, the strong decays of P_c → J/ψp are estimated based on a Σ_cD̄* molecular scenario. Our results disfavor all the P − wave Σ_cD̄* assignments, while favor the S − wave Σ_cD̄* picture of the two P_c states comparing to the experimental data. In addition, we also analyze the possible J^P =3/2⁻ state in Σ_c*D̄ and Σ_c*D̄* pictures with heavy quark limit.

^*

This work is supported by National Sciences Foundations of China No. 11475192 as well as supported, in part, by the DFG and the NSFC through funds (11621131001) provided to the Sino-German CRC 110 “Symmetries and the Emergence of Structure in QCD”.

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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