论文标题
最低的隐藏式五角夸克州的HADRONIC耦合常数，具有严格的Quark-Hadron二重性规则
The hadronic coupling constants of the lowest hidden-charm pentaquark state with the QCD sum rules in rigorous quark-hadron duality
论文作者
论文摘要
在本文中，我们说明了如何使用基于严格的夸克 - 哈德隆质量的QCD总规则来计算五夸克状态的强烈耦合常数，然后研究最低的diquark-antiquark-diquark-andiquark-antiquark-antiquark-antiquark-antiquark type type type type type pentaquark pentaquark状态与spin-pary-parity $ j^pparity $ j^p = p = p = p = {2细节，并计算部分衰减宽度。总宽度$γ（p_c）= 14.32 \ pm3.31 \，\ rm {mev} $与实验值$γ_{p_c（4312）} = 9.8 \ pm2.7^{+ 3.7} {+ 3.7} $ p_c（4312）$ to为$ [ud] [uc] \ bar {c} $ pentaquark状态，$ j^p = {\ frac {1} {2} {2}}}}^ - $。强烈的耦合常数具有关系$ | g_ {pd^-c^{++}}} | = \ sqrt {2} | g_ {p \ bar {d}^0σ_c^+} | $ p_c（4312）$可能具有diquark-diquark-antiquark类型的五角夸克核心，其典型尺寸的典型尺寸是$ qqq $ -type baryon所说，与梅森 - 巴里昂对$ \ bar $ \ bar {d}σ_c$的强大耦合可能会导致一些pentaquark $ compent $ pentaquark $ youse $ pepent $ porgect $ p_c_ $ p_c（43） $ \ bar {d}σ_c$分子状态。
In this article, we illustrate how to calculate the hadronic coupling constants of the pentaquark states with the QCD sum rules based on rigorous quark-hadron quality, then study the hadronic coupling constants of the lowest diquark-diquark-antiquark type hidden-charm pentaquark state with the spin-parity $J^P={\frac{1}{2}}^-$ in details, and calculate the partial decay widths. The total width $Γ(P_c)=14.32\pm3.31\,\rm{MeV}$ is compatible with the experimental value $Γ_{P_c(4312)} = 9.8\pm2.7^{+ 3.7}_{- 4.5} \mbox{ MeV}$ from the LHCb collaboration, and favors assigning the $P_c(4312)$ to be the $[ud][uc]\bar{c}$ pentaquark state with the $J^P={\frac{1}{2}}^-$. The hadronic coupling constants have the relation $|G_{PD^-Σ_c^{++}}|= \sqrt{2}|G_{P\bar{D}^0Σ_c^+}|\gg |G_{P\bar{D}^0Λ_c^+}|$, and favor the hadronic dressing mechanism. The $P_c(4312)$ maybe have a diquark-diquark-antiquark type pentaquark core with the typical size of the $qqq$-type baryon states, the strong couplings to the meson-baryon pairs $\bar{D}Σ_c$ lead to some pentaquark molecule components, and the $P_c(4312)$ maybe spend a rather large time as the $\bar{D}Σ_c$ molecular state.
