The charged Zc and Zb structures in a constituent quark model approach

  1. G. Ortega, Pablo 2
  2. Segovia, Jorge 1
  3. Rodriguez Entem, David 2
  4. Fernández, Francisco 2
  1. 1 Departamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, E-41013 Sevilla, Spain
  2. 2 Grupo de Física Nuclear and Instituto Universitario de Física Fundamental y Matemáticas (IUFFyM), Universidad de Salamanca, E-37008 Salamanca, Spain
Journal:
SciPost Physics Proceedings

ISSN: 2666-4003

Year of publication: 2020

Type: Article

DOI: 10.21468/SCIPOSTPHYSPROC.3.013 GOOGLE SCHOLAR lock_openOpen access editor

More publications in: SciPost Physics Proceedings

Abstract

The nature of the recently discovered Zc and Zb structures is intriguing. Their charge forces its minimal quark content to be Q¯ Qq¯ q (where Q = {c,b} and q = {u,d}). In this work we perform a molecular coupled-channels calculation of the IG(JPC) = 1+(1+−) charm and bottom sectors in the framework of a constituent quark model which satisfactorily describes a wide range of properties of (non-)conventional hadrons containing heavyquarks. Alltherelevantchannelsareincludedforeachsector, i.e.: The D(∗)¯ D∗+h.c., πJ/ψ and ρηc channels for the Zc and B(∗)B∗ and Υ(nS)π (n = 1,2,3) channels for the Zb analysis. Possible structures of these resonances will be discussed.

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