We analyze the masses of the doubly-heavy tetraquark states TQQ using the variational method. We also find that our full model calculations give, in general, smaller binding energy, compared to those from the simplified quark model that treats quark dynamics inside the tetraquark the same as that inside a baryon. We investigate the main origin of this weaker binding energy. The original work is described in W. Park, S. Noh, S.H. Lee, Nucl. Phys. A 983, 1 (2019).
Bibliographical noteFunding Information:
This work was supported by the Korea National Research Foundation under the grant numbers 2016R1D1A1B03930089 and 2017R1D1A1B03028419. S.N. acknowledges the support given by the NAWA project PROMPP/ PRO/2018/1/00008 enabling our participation in the conference.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)