Spectroscopy of the hidden-charm [qc] [q c ] and [sc] [s c ] tetraquarks in the relativized diquark model SPECTROSCOPY of the HIDDEN-CHARM ... ANWAR, FERRETTI, and SANTOPINTO

Abstract

We calculate the spectrum of qqcc and sscc tetraquarks, where q, s, and c stand for light (u, d), strange, and charm quarks, respectively, in a relativized diquark model, characterized by one-gluon-exchange plus confining potential. In the diquark model, a qqcc (sscc) tetraquark configuration is made up of a heavy-light diquark, qc (sc), and anti-diquark, qc (sc). According to our results, 13 charmonium-like observed states can be accommodated in the tetraquark picture, both in the hidden-charm (qqcc) and hidden-charm hidden-strange (sscc) sectors.