论文标题
通过当前的代数向隐藏的pentaquark指出：从他们的作品到腐烂
Hidden-charm pentaquark states through the current algebra: From their productions to decays
论文作者
论文摘要
可能存在七个$ \ bar d^{（*）}σ_c^{（*）} $ HADRONIC分子状态。我们使用QCD总规则来构造它们相应的插值电流，并计算其质量和衰减常数。基于这些结果，我们通过当前代数，即$ \ Mathcal {b}（λ_b^0 \ to p_c k^ - ）：\ Mathcal {b}（λ_b^0 \ to p_c^0 \ to p_c^\ prime k^$ p_c p_c^$ p_c^$ p_c^$ p_c^$ p_c^$ p_c^$ p_c^$ p_c^$ p_c^$ p_c^$ p_c^$ p_c^$ p_c^$ p_c^$ p_c^$ p_c^$ p_c^$ p_c^$ p_c^$ p_c^$ p_c，我们还通过FIFEZ重排研究了它们的衰减属性，并进一步计算了这些比率，以$ j/ψp$质量频谱，即$ \ MATHCAL {B}（λ_b^0 \ 0 \ to p_c k^ - \ to p_c k^ - \ to j/ψpk^ - ） j/ψpk^ - ）$。我们的结果表明，$ \ bar d^{*}σ_c^{*} $ j^p = 1/2^ - $和$ 3/2^ - $的分子状态可以在以后的实验中观察到。
There may exist seven $\bar D^{(*)} Σ_c^{(*)}$ hadronic molecular states. We construct their corresponding interpolating currents, and calculate their masses and decay constants using QCD sum rules. Based on these results, we calculate their relative production rates in $Λ_b^0$ decays through the current algebra, i.e., $\mathcal{B}(Λ_b^0 \to P_c K^-):\mathcal{B}(Λ_b^0 \to P_c^\prime K^-)$ with $P_c$ and $P_c^\prime$ two different states. We also study their decay properties through the Fierz rearrangement, and further calculate these ratios in the $J/ψp$ mass spectrum, i.e., $\mathcal{B}(Λ_b^0 \to P_c K^- \to J/ψp K^-):\mathcal{B}(Λ_b^0 \to P_c^\prime K^- \to J/ψp K^-)$. Our results suggest that the $\bar D^{*} Σ_c^{*}$ molecular states of $J^P = 1/2^-$ and $3/2^-$ are possible to be observed in future experiments.
