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Decay properties of $P$-wave charmed baryons from light-cone QCD sum rules

Decay properties of $P$-wave charmed baryons from light-cone QCD sum rules

来源:Arxiv_logoArxiv
英文摘要

We study decay properties of the $P$-wave charmed baryons using the method of light-cone QCD sum rules, including the $S$-wave decays of the flavor $\mathbf{\bar 3}_F$ $P$-wave charmed baryons into ground-state charmed baryons accompanied by a pseudoscalar meson ($\pi$ or $K$) or a vector meson ($\rho$ or $K^*$), and the $S$-wave decays of the flavor $\mathbf{6}_F$ $P$-wave charmed baryons into ground-state charmed baryons accompanied by a pseudoscalar meson ($\pi$ or $K$). We study both two-body and three-body decays which are kinematically allowed. We find two mixing solutions from internal $\rho$- and $\lambda$-mode excitations, which can well describe both masses and decay properties of the $\Lambda_c(2595)$, $\Lambda_c(2625)$, $\Xi_c(2790)$ and $\Xi_c(2815)$. We also discuss the possible interpretations of $P$-wave charmed baryons for the $\Sigma_c(2800)$, $\Xi_c(2930)$, $\Xi_c(2980)$, and the recently observed $\Omega_c(3000)$, $\Omega_c(3050)$, $\Omega_c(3066)$, $\Omega_c(3090)$, and $\Omega_c(3119)$.

Wei Chen、Qiang Mao、Atsushi Hosaka、Hua-Xing Chen、Shi-Lin Zhu、Xiang Liu

10.1103/PhysRevD.95.094008

物理学

Wei Chen,Qiang Mao,Atsushi Hosaka,Hua-Xing Chen,Shi-Lin Zhu,Xiang Liu.Decay properties of $P$-wave charmed baryons from light-cone QCD sum rules[EB/OL].(2017-03-22)[2025-08-02].https://arxiv.org/abs/1703.07703.点此复制

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