论文标题

$ y(4626)$作为$ p $ -Wave $ [cs] [\ bar {c} \ bar {s}] $ tetraquark state

$Y(4626)$ as a $P$-wave $[cs][\bar{c}\bar{s}]$ tetraquark state

论文作者

Zhang, Jian-Rong

论文摘要

由Belle合作对$ Y(4626)$的新观察的动机,我们调查了其配置为$ p $ -Wave $ [cs] [\ bar {c} \ bar {s}] $ tetraquark state $ tetraquark state的可能性。 Eventually, the extracted mass $4.60^{+0.13}_{-0.19}~\mbox{GeV}$ for the $P$-wave $cs$-scalar-diquark $\bar{c}\bar{s}$-scalar-antidiquark state agrees well with the experimental data of $Y(4626)$, which could support its interpretation as a $ p $ - 波量表 - 标量$ [cs] [\ bar {c} \ bar {s}] $ tetraquark state。

Motivated by the Belle Collaboration's new observation of $Y(4626)$, we investigate the possibility of its configuration as a $P$-wave $[cs][\bar{c}\bar{s}]$ tetraquark state from QCD sum rules. Eventually, the extracted mass $4.60^{+0.13}_{-0.19}~\mbox{GeV}$ for the $P$-wave $cs$-scalar-diquark $\bar{c}\bar{s}$-scalar-antidiquark state agrees well with the experimental data of $Y(4626)$, which could support its interpretation as a $P$-wave scalar-scalar $[cs][\bar{c}\bar{s}]$ tetraquark state.

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