论文标题
候选人旋转的调查 - $ \ frac {1} {2} $ hidden-charm三重奇怪pentaquark state $ p_ {csss} $
Investigation of a candidate spin-$\frac{1}{2}$ hidden-charm triple strange pentaquark state $P_{csss}$
论文作者
论文摘要
候选三重奇怪的pentaquark状态，$ p_ {csss} $，通过其强衰减通道$ p_ {csss} \ rightarrowω^-J/ψ$进行了研究。为了计算相关的强耦合常数，使用了两个可能的旋转式插值电流$ j^p = \ frac {1} {2} {2}^{ - } $。尽管所考虑的州所选国家的旋转量子数$ j^p = \ frac {1} {2} {2}^{ - } $，但它们同时伴随着正相和平均态，并且两个均等获得相应的衰减宽度。这些宽度以$γ（p_ {csss} \ rightarrow j/ψΩ^ - ）= 201.4 \ pm 82.5〜 \ mathrm {mev} $的负数和$γ（\ widetilde {p} _ {p} _ {csss} _ {csss} \ rightarrow j/fm）使用第一个电流时，107.8〜 \ Mathrm {Mev} $。对于第二电流，我们获得了$γ（p_ {csss} \ rightArrow j/ψΩ^ - ）= 252.5 \ pm 116.7〜 \ mathrm {mev} $ for the Noudg和$γ（\ widetilde {p} _ {p} _ {csss} _ {csss} _ {csss} \ rightarrow j/firtarrow j/fima 98.4〜 \ MATHRM {MEV} $，用于正均等状态。这些结果可能会提供有关此类候选状态的未来实验观察结果的见解，并有助于区分和修复其特性。
A candidate triple strange pentaquark state, $P_{csss}$, is investigated through its strong decay channel $P_{csss} \rightarrow Ω^-J/ψ$. To calculate the relevant strong coupling constants, two possible interpolating currents with spin-parity $J^P=\frac{1}{2}^{-}$ are used. Though the chosen currents for the state under consideration have spin-parity quantum numbers $J^P=\frac{1}{2}^{-}$, they couple to both the positive and negative parity states simultaneously and the corresponding decay widths are obtained for both parities. These widths are obtained as $Γ(P_{csss} \rightarrow J/ψΩ^-)=201.4\pm 82.5~\mathrm{MeV}$ for the negative and $Γ(\widetilde{P}_{csss} \rightarrow J/ψΩ^-)=316.4\pm 107.8~\mathrm{MeV}$ for the positive parity state when the first current is used. For the second current, we obtain $Γ(P_{csss} \rightarrow J/ψΩ^-)=252.5\pm 116.7~\mathrm{MeV}$ for the negative and $Γ(\widetilde{P}_{csss} \rightarrow J/ψΩ^-)=361.1\pm 98.4~\mathrm{MeV}$ for the positive parity state. These results may provide insights into future experimental observations of such candidate states and help to distinguish and fix their properties.
