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- W4200553663 abstract "We investigate the possibility of studying the strange hidden-charm pentaquark state ${P}_{cs}(4459)$ by photon-induced reactions on a proton target in an effective Lagrangian approach. The production process is described by the $t$-channel ${K}^{ensuremath{-}}$ exchange, the $u$-channel $mathrm{ensuremath{Lambda}}$ exchange, the contract term, and the $s$- channel nucleon pole. Our theoretical approach is based on the assumption that ${P}_{cs}(4459)$ with ${J}^{P}=1/{2}^{ensuremath{-}}$ or ${J}^{P}=3/{2}^{ensuremath{-}}$ can be interpreted as a molecule composed of ${overline{D}}^{*}{mathrm{ensuremath{Xi}}}_{c}$. Using the coupling constants of the ${P}_{cs}^{{J}^{P}}$ to $ensuremath{gamma}mathrm{ensuremath{Lambda}}$ and ${K}^{ensuremath{-}}p$ channels obtained from molecule picture of the ${P}_{cs}^{{J}^{P}}(4459)$, the total cross-sections of the process $ensuremath{gamma}pensuremath{rightarrow}{P}_{cs}^{{J}^{P}}{K}^{+}$ is evaluated. Our calculation indicates that the cross-section for $ensuremath{gamma}pensuremath{rightarrow}{P}_{cs}^{1/{2}^{ensuremath{-}}}{K}^{+}$ and $ensuremath{gamma}pensuremath{rightarrow}{P}_{cs}^{3/{2}^{ensuremath{-}}}{K}^{+}$ are of the order of 10.0 pb and 5.0 pb, respectively. In addition, we compute the cross section by assuming ${P}_{cs}(4459)$ as a compact pentaquark and find it is quite different from the results of ${overline{D}}^{*}{mathrm{ensuremath{Xi}}}_{c}$ molecule. Those results can be measured in future experiments, such as the Electron-Ion Collider in China and the United States, and can be used to test the nature of the ${P}_{cs}$." @default.
- W4200553663 created "2021-12-31" @default.
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- W4200553663 date "2021-12-10" @default.
- W4200553663 modified "2023-10-16" @default.
- W4200553663 title "Searching for strange hidden-charm pentaquark state <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:msub><mml:mi>P</mml:mi><mml:mrow><mml:mi>c</mml:mi><mml:mi>s</mml:mi></mml:mrow></mml:msub><mml:mo stretchy=false>(</mml:mo><mml:mn>4459</mml:mn><mml:mo stretchy=false>)</mml:mo></mml:math> in <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi>γ</mml:mi><mml:mi>p</mml:mi><mml:mo stretchy=false>→</mml:mo><mml:msup><mml:mi>K</mml:…" @default.
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- W4200553663 doi "https://doi.org/10.1103/physrevd.104.116007" @default.
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