Multiquark states as di-hadronic molecules

Ajay Kumar Rai; J N Pandya; P C Vinodkumar

doi:10.1016/j.nuclphysa.2006.10.023

paper

Multiquark states as di-hadronic molecules

arXiv:hep-ph/0612244 · doi:10.1016/j.nuclphysa.2006.10.023

Abstract

Multiquark systems such as tetraquarks, pentaquarks and hexaquarks states are studied as di-hadronic molecules in a nonrelativistic model. The masses of several di-hadronic states using a molecular interaction provided by asymptotic expression of the confined gluon exchange potential are computed. The exotic states such as f $_{0}$ (0.982), f $_{2}$ (1.565), f $_{2}$ (1.950), X(3.87), D $_{s J}$ (2.317, 2.460, 2.632), $ψ$ (4.040) etc are identified as the low lying di-mesonic states, and $Θ^{+}$ (1.54) as a $K - N$ molecular state.

4 pages, Presented in the Fifth International Conference on Perspectives in Hadronic Physics, ICTP, Trieste, Italy, May 2006