Tetra and pentaquarks from the molecular perspective

E. Oset; En Wang; J.J. Xie; L.S. Geng; V.R. Debastiani; J. M. Dias; W. H. Liang

doi:10.1051/epjconf/201919901003

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Proceedings

Open Access

EPJ Web of Conferences 199, 01003 (2019)
https://doi.org/10.1051/epjconf/201919901003

Tetra and pentaquarks from the molecular perspective

E. Oset¹^*, En Wang², J.J. Xie³, L.S. Geng⁴, V.R. Debastiani¹, J. M. Dias¹ and W. H. Liang⁵

¹ Departamento de Fisica Teorica and IFIC, Centro Mixto Universidad de Valencia - CSIC, Institutos de Investigacion de Paterna, Aptdo. 22085, 46071 Valencia, Spain
² Department of Physics, Zhengzhou University, Zhengzhou, Henan 450001, China
³ Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
⁴ School of Physics and Nuclear Energy Engineering and International Research Center for Nuclei and Particles in the Cosmos, Beihang University, Beijing 100191, China
⁵ Department of Physics, Guangxi Normal University, Guilin 541004, China

^* e-mail: oset@ific.uv.es

Published online: 1 February 2019

Abstract

We present results for the analysis of the B⁺ → J/ψϕK⁺ which shows the contribution of two resonances, the X(4140) and X(4160) and a cusp at the $D_{s}^{*} {\bar{D}}_{s}^{*}$ $D_s^*\bar D_s^*$ threshold tied to the molecular character of the X(4160) resonance. In the second part we present the results for the theoretical approach to the new Ω_cstates from the molecular perspective. In both cases we compare with results of the LHCb collaboration.

© The Authors, published by EDP Sciences, 2019

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.