2015/07/23 by Chengrong Deng, Jialun Ping, Hongxia Huang +1
Chemistry · Physics and Astronomy · #Chemistry #Cold Atom Physics and Bose-Einstein Condensates #Crystallography #Diquark #Hadron #Particle physics #Physics #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #Tetraquark #hep-ph
paper · pdf · doi:10.1103/physrevd.92.034027
published as PhysRevD.92.034027 (2015) · 6 pages, 5 tables
arxiv created 2015/07/23 · openalex publication_date 2015/08/28 · openalex created_date 2016/06/24 · arxiv updated 2016/08/16 · openalex updated_date 2026/08/05
Inspired by the present experimental results of charged charmonium-like states Zc+, we present a systematic study of the tetraquark states [cu][cd] in a color flux-tube model with a multibody confinement potential. Our investigation indicates that charged charmonium-like states Zc+(3900) or Zc+(3885), Zc+(3930), Zc+(4020) or Zc+(4025), Z1+(4050), Z2+(4250), and Zc+(4200) can be described as a family of tetraquark [cu][cd] states with the quantum numbers n2S+1LJ and JP of 13S1 and 1+, 23S1 and 1+, 15S2 and 2+, 13P1 and 1^\ensuremath-, 15D1 and 1+, and 13D1 and 1+, respectively. The predicted lowest mass charged tetraquark state [cu][cd] with 0+ and 11S0 lies at 3780\ifmmode±\else\textpm\fi10 MeV/c2 in the model. These tetraquark states have compact three-dimensional spatial configurations similar to a rugby ball with higher orbital angular momentum L between the diquark [cu] and antidiquark [cd] corresponding to a more prolate spatial distribution. The multibody color flux tube, a collective degree of freedom, plays an important role in the formation of those charged tetraquark states. However, the two heavier charged states Zc+(4430) and Zc+(4475) cannot be explained as tetraquark states [cu][cd] in this model approach.