Spectroscopic behavior of fully heavy tetraquarks

Author:

An Hong-Tao,Luo Si-Qiang,Liu Zhan-Wei,Liu XiangORCID

Abstract

AbstractStimulated by the observation of theX(6900) from LHCb in 2020 and the recent results from CMS and ATLAS in the di-$$J/\psi $$J/ψinvariant mass spectrum, in this work we systematically study all possible configurations for the ground states of fully heavy tetraquark in the constituent quark model. By our calculation, we present their spectroscopic behaviors including binding energy, lowest meson–meson thresholds, specific wave function, magnetic moment, transition magnetic moment, radiative decay width, rearrangement strong width ratio, internal mass contributions, relative lengths between (anti)quarks, and the spatial distribution of four valence (anti)quarks. We cannot find a stable S-wave state for the fully heavy tetraquark system. We hope that our results will be valuable to further experimental exploration of fully heavy tetraquark states.

Funder

National Natural Science Foundation of China

Publisher

Springer Science and Business Media LLC

Subject

Physics and Astronomy (miscellaneous),Engineering (miscellaneous)

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