4.4 Article

Exploring the magnetic dipole moments of TQQqs and TQQss states in the framework of QCD light-cone sum rules

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JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 3, 页码 -

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SPRINGER
DOI: 10.1007/JHEP03(2023)166

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Properties of Hadrons; Quarkonium; Specific QCD Phenomenology

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Motivated by the discovery of the tetraquark T-cc(+), this study investigates the magnetic dipole moments of the possible single and double strange partners, T-QQqs and T-QQss, using the QCD light-cone sum rules. The results show significant differences in the magnetic dipole moments obtained using different diquark-antidiquark structures. The magnetic dipole moment is a valuable tool for studying the inner structures of hadrons governed by the quark-gluon dynamics of QCD.
Motivated by the recent observation of the tetraquark T-cc(+), we investigate the magnetic dipole moments of the possible single and double strange partners, T-QQqs and T-QQss, with the spin-parity J(P) = 1(+) by means of the QCD light-cone sum rules. To this end, we model these states as diquark-antidiquark states with different organizations and interpolating currents. The results of magnetic dipole moments obtained using different diquark-antidiquark structures differ from each other, considerably. The magnetic dipole moment is the leading-order response of a bound system to a soft external magnetic field. Therefore, it provides an excellent platform for investigation of the inner structures of hadrons governed by the quark-gluon dynamics of QCD.

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