Mass spectrum and strong decays of tetraquark states

Wang, G.-J.*; Meng, L.*; Xiao, L.-Y.*; Oka, Makoto ; Zhu, S.-L.*

The mass spectrum and strong decays of the S-wave states are studied in the compact tetraquark scenario with the quark model. The model consists of the Coulomb, the linear confinement, and the hyperfine interactions. We calculate their decay amplitudes into the $D^{-(*)}K^{(*)}$ channels using the quark interchange method. The mass and decay width of the state are MeV and MeV, respectively, which indicates that it might be a good candidate for the recently observed state. We also obtain an isospin partner state with MeV and $Gamma_{Xto D^- K}= 48.1$ MeV, respectively. Future experimental search for will be very helpful.

Language	:	English
Journal	:	European Physical Journal C
Volume	:	81
Number	:	2
Pages	:	p.188_1 - 188_12
Publication Year/Month	:	2021/02
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Paper URL	:	https://doi.org/10.1140/epjc/s10052-021-08978-0
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Keywords	:	tetraquarks; quark model; decay widths
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Cooperating Institute	:	University of Science and Technology Beijing; Peking University

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Registration No. : AA20200780
JAEA Abstracts No. : 49000490
Paper Submission No. : 24066

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