论文标题
$ p_ {ψs}^λ（4338）$ pentaquark及其在分子图片中的合作伙伴
The $P_{ψs}^Λ(4338)$ pentaquark and its partners in the molecular picture
论文作者
论文摘要
LHCB合作已检测到一种新的隐藏式五角夸克，其量子数为$λ$ baryon：$ p_ {ψs}}^λ（4338）$。此五夸克将被解释为$ \ bar {d}_sλ_c$ - $ \ bar {d}ξ_c$ resonance in Contact-Range理论中。在这里，我们简要评论了新的$ p_ {ψs}^λ（4338）$与$ p^λ_{ψs}（4459）$的关系。我们发现，$ p_ {ψs}^λ（4338）$和$ p_ {ψs}}^λ（4459）$都接受相同参数的共同描述，该参数的存在，该参数的存在，该参数的存在，该参数的存在，该参数的存在，这可以预测一些其他$ p_月份^n $，$ p_ p_ {$ p_ p_ {ψc} $ p_ p_ $ p_ p_} $， s}^ξ$分子五体夸夸夸克由魅力的抗议赛和抗titriplet Charmed Baryon组成。这些预测的Pentaquarks中最强大的是$ p_ {ψs}^λ$，质量为$（4235-4255）\，{\ rm mev} $ ranga $p_ψ^λ（4338）$，由于isospin对称性破坏效果，它可能会混合使用。
The LHCb collaboration has detected a new hidden-charm pentaquark with the quantum numbers of a $Λ$ baryon: the $P_{ψs}^Λ(4338)$. This pentaquark will be interpreted as a $\bar{D}_s Λ_c$-$\bar{D} Ξ_c$ resonance within a contact-range theory. Here we briefly comment on the relation of the new $P_{ψs}^Λ(4338)$ with the $P^Λ_{ψs}(4459)$. We find that the $P_{ψs}^Λ(4338)$ and $P_{ψs}^Λ(4459)$ both accept a common description in terms of the same parameters, which predicts the existence of a few additional $P_ψ^N$, $P_{ψs}^Λ$, $P_{ψs}^Σ$ and $P_{ψs s}^Ξ$ molecular pentaquarks composed of a charmed antimeson and an antitriplet charmed baryon. The most robust of these predicted pentaquarks is a $P_{ψs}^Λ$ with a mass in the $(4235-4255)\,{\rm MeV}$ range, while other two interesting ones are a $P_ψ^{N}(4150)$ and a $P_ψ^Σ(4335)$, the latter basically at the same mass as the $P_ψ^Λ(4338)$, with which it might mix owing to isospin symmetry breaking effects.
