article.page.titleprefix Investigation of a candidate spin-$\frac{1}{2}$ hidden-charm triple strange pentaquark state $P_{csss}$
Date
2023-01-10
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Physical Review D
Abstract
A candidate triple strange pentaquark state, $P_{csss}$, is investigated through its strong decay channel $P_{csss} \rightarrow \Omega^-J/\psi $. 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 $\Gamma(P_{csss} \rightarrow J/\psi \Omega^-)=201.4\pm 82.5~\mathrm{MeV}$ for the negative and $\Gamma(\widetilde{P}_{csss} \rightarrow J/\psi \Omega^-)=316.4\pm 107.8~\mathrm{MeV}$ for the positive parity state when the first current is used. For the second current, we obtain $\Gamma(P_{csss} \rightarrow J/\psi \Omega^-)=252.5\pm 116.7~\mathrm{MeV}$ for the negative and $\Gamma(\widetilde{P}_{csss} \rightarrow J/\psi \Omega^-)=361.1\pm 98.4~\mathrm{MeV}$ 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.
Description
Open Access, Published by PHYSICAL REVIEW D, https://doi.org/10.1103/PhysRevD.107.014023, K. Azizi, Department of Physics, University of Tehran, North Karegar Avenue, Tehran 14395-547, Iran; Department of Physics, Doǧuş University, Dudullu-Ümraniye, Istanbul 34775, Turkey and School of Particles and Accelerators, Institute for Research in Fundamental Sciences (IPM) P.O. Box 19395-5531, Tehran, Iran, Y. Sarac, Electrical and Electronics Engineering Department, Atilim University, Ankara 06836, Turkey, H. Sundu, Department of Physics, Kocaeli University, 41380 Izmit, Turkey.
Keywords
Particle, interactions, Quantum chromodynamics, Sum rules
Citation
http://hdl.handle.net/20.500.14411/1885