Determination of Parameters of a Potential Model for Tetraquark Study by Studying All S-Wave Mesons

We calculate the masses and leptonic decay widths of the bottomonium bb¯ and charmonium cc¯ states in a constituent quark model where the Cornell-like potential and spin-dependent interaction are employed, with all model parameters predetermined by studying ground and first radial excited states of S- and P-wave heavy quarkonium mesons. By comparing the theoretical predictions for JPC=1−− quarkonium states with experimental data and considering possible mixtures of nS and (n−1)D states, we provide tentative assignments for all observed JPC=1−− heavy quarkonia. The work suggests that the ϒ(10860) and ϒ(11020) are bb¯ 5S−4D mixture states, and the ψ(4360) and ψ(4415) are largely 4S and 3D cc¯ states, respectively. The ψ(4230) may not be accommodated with the conventional meson picture in the present work. Published by the American Physical Society 2024

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Flavor exotic triply-heavy tetraquark states in AdS/QCD potential

Mutuk

2023

Eur. Phys. J. C

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We study the S-wave mass spectra of flavor exotic triply-heavy tetraquark states $$cc\bar{c}\bar{q}$$ c c c ¯ q ¯ , $$cc\bar{b}\bar{q}$$ c c b ¯ q ¯ , $$bb\bar{c}\bar{q}$$ b b c ¯ q ¯ and $$bb\bar{b}\bar{q}$$ b b b ¯ q ¯ . We adopt a diquark–antidiquark scheme to solve Schrödinger equation. The calculations are carried out in a nonrelativistic quark model with a color interaction described by a potential computed in AdS/QCD. The AdS/QCD potential model consists of a central potential which reflects short distance and large distance behaviour of QCD, spin dependent term for hyperfine splitting and a constant term. We find stable state candidates in the $$cc\bar{c}\bar{q}$$ c c c ¯ q ¯ sector whereas in the $$cc\bar{b}\bar{q}$$ c c b ¯ q ¯ , $$bb\bar{c}\bar{q}$$ b b c ¯ q ¯ and $$bb\bar{b}\bar{q}$$ b b b ¯ q ¯ sectors all the states lie above corresponding S-wave meson-meson thresholds.

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Determination of Parameters of a Potential Model for Tetraquark Study by Studying All S-Wave Mesons

Cited by 4 publications

References 33 publications

Study of light tetraquark spectroscopy

Study of light tetraquark spectroscopy

Mass spectrum of 1−− heavy quarkonium

Flavor exotic triply-heavy tetraquark states in AdS/QCD potential

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