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- W4224256821 abstract "The low-lying bottomonium-like tetraquarks $bbar{b}qbar{q}$ $(q=u,,d,,s)$ with spin-parity $J^P=0^+$, $1^+$ and $2^+$, and isospin $I=0,,1$ or $frac{1}{2}$, are systematically investigated within the theoretical framework of real- and complex-scaling range of a chiral quark model, which has already been successfully applied in analysis of several multiquark systems. A complete four-body $S$-wave function, which includes meson-meson, diquark-antidiquark and K-type arrangements of quarks, along with all possible color configurations are considered. In the $bbar{b}qbar{q}$ $(q=u,,d)$ tetraquark system, we found resonance states of $B^{(*)} bar{B}^{(*)}$, $Upsilonomega$, $Upsilonrho$ and $eta_b rho$ nature with all possible $I(J^P)$ quantum numbers. Their masses are generally located in the energy range $11.0-11.3$ GeV and their widths are less than $10$ MeV. In addition, extremely narrow resonances, with two-meson strong decay widths less than $1.5$ MeV, are obtained in both $bbar{b}ubar{s}$ and $bbar{b}sbar{s}$ tetraquark systems. Particularly, four radial excitations of $Upsilon K^*$ and $eta_b K^*$ are found at $sim11.1$ GeV in $J^P=0^+$, $1^+$ and $2^+$ channels of $bbar{b}ubar{s}$ system. One $Upsilon(1S)phi(2S)$ resonance state is obtained at $11.28$ GeV in the $J^P=1^+$ sector." @default.
- W4224256821 created "2022-04-26" @default.
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- W4224256821 date "2022-07-26" @default.
- W4224256821 modified "2023-10-16" @default.
- W4224256821 title "Bottomoniumlike tetraquarks in a chiral quark model" @default.
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- W4224256821 doi "https://doi.org/10.1103/physrevd.106.014021" @default.
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