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23 January 2025 |
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Article overview
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Mass spectra of doubly heavy tetraquarks in diquark-antidiquark picture | | YongXin Song
; Duojie Jia
; | | Date: |
1 Jan 2023 | | Abstract: | Inspired by recent observation of the first doubly charmed tetraquark
$T_{cc}$, we apply linear Regge relation and mass scaling to study low-lying
mass spectra of the doubly heavy tetraquark in heavy-diquark-light-antidiquark
picture. The measured data and other compatible estimates of ground-state
masses of doubly heavy baryons are employed to evaluate masses of heavy diquark
$M_{QQ}$ ($Q=c,b$) and the $D/D_{s}$ meson masses are used in mass scaling to
determine the hyperfine mass splitting. Our mass computation indicates that all
low-lying states of doubly heavy tetraquarks are unstable against strong decays
to two heavy-light mesons, except for the ground states of nonstrange $bb$
tetraquarks. | | Source: | arXiv, 2301.00376 | | Services: | Forum | Review | PDF | Favorites | |
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