论文标题

新的奇怪的五角星

New strange pentaquarks

论文作者

Karliner, Marek, Rosner, Jonathan R.

论文摘要

LHCB观察到的新奇怪的五角夸克很可能是由$ξ_c\ bar d $和$ξ_c\ bar d^{*}组成的HADRONIC分子。非胜利部门中的五夸克斯。 The latter clearly are hadronic molecules consisting of $Σ_c \bar D$ and $Σ_c \bar D^{*}.$ Following this line of thought, we predict three additional strange pentaquarks, consisting of $Ξ_c^{\prime} \bar D$ and $Ξ_c^{\prime} \bar D^{*}.$ The masses of these states are expected to be相对于相应的已知奇怪的pentaquarks,向上移动$ m(ξ_c^{\ prime})-M(ξ_c)\大约110 $ MEV。

The new strange pentaquarks observed by LHCb are very likely hadronic molecules consisting of $Ξ_c \bar D$ and $Ξ_c \bar D^{*}.$ We discuss the experimental evidence supporting this conclusion, pointing out the similarities and differences with the $P_c(4312)$, $P_c(4440)$ and $P_c(4457)$ pentaquarks in the non-strange sector. The latter clearly are hadronic molecules consisting of $Σ_c \bar D$ and $Σ_c \bar D^{*}.$ Following this line of thought, we predict three additional strange pentaquarks, consisting of $Ξ_c^{\prime} \bar D$ and $Ξ_c^{\prime} \bar D^{*}.$ The masses of these states are expected to be shifted upwards by $M(Ξ_c^{\prime})-M(Ξ_c) \approx 110$ MeV with respect to the corresponding known strange pentaquarks.

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