Diquark and triquark correlations in the deconfined phase of QCD

Details Diquark and triquark correlations in the deconfined phase of QCD Diquark and triquark correlations in the deconfined phase of QCD

2009-07-29

arxiv.org/abs/0907.5176v2

JETP Lett.90:232-236,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 1 figure; published version

Scientific paper

10.1134/S0021364009160036

We use the non-perturbative Q\bar Q potential at finite temperatures derived in the Field Correlator Method to obtain binding energies for the lowest eigenstates in the Q\bar Q and QQQ systems (Q=c,b). The three--quark problem is solved by the hyperspherical method. The solution provides an estimate of the melting temperature and the radii for the different diquark and triquark bound states. In particular we find that J/\psi and $ccc$ ground states survive up to T \sim 1.3 T_c, where T_c is the critical temperature, while the corresponding bottomonium states survive even up to higher temperature, T \sim 2.2 T_c.

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