Production of $P_c$(4312) state in electron-proton collisions

Abstract

We study the cross sections for the electro-production of $P_c(4312)$ particle, a recently discovered pentaquark state, in electron-proton collisions assuming possible quantum numbers to be $J^P={\frac{1}{2}}^{\pm },{\frac{3}{2}}^{\pm }$. $\sqrt{s}$ is set to the energy of the future Electron Ion Collider at Brookhaven National Laboratory, in order to asses the possibility of the measurement in this facility. One can discriminate the spin of $P_c(4312)$ by comparing the pseudorapidity distribution in two different polarization configurations for proton and electron beams. Furthermore, the parity of $P_c(4312)$ can be discerned by analyzing the decay angle in the $P_c\to p+J/\psi$ channel. As the multiplicity of $P_c$ production in our calculation is large, the EIC can be considered as a future facility for precision measurement of heavy pentaquarks.

arXiv comment7 pages, 6 figures

References in corpus (7)

• The hidden-charm pentaquark and tetraquark states
• Observation of $J/\psi p$ resonances consistent with pentaquark states in ${\Lambda }_b^0\to J/\psi K^{-}p$ decays
• Pentaquark and Tetraquark states
• Observation of a narrow pentaquark state, $P_c(4312{)}^{+}$, and of two-peak structure of the $P_c(4450{)}^{+}$
• Evidence of a $J/\psi \Lambda$ structure and observation of excited ${\Xi }^{-}$ states in the ${\Xi }_b^{-}\to J/\psi \Lambda K^{-}$ decay
• Nucleon and Delta resonances in K Sigma(1385) photoproduction from nucleons
• Effective Lagrangian approach to vector mesons, their structure and decays${}^{\ast )}$

Cited by in corpus (4)

• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• Fully-charm and -bottom pentaquarks in a Lattice-QCD inspired quark model
• Hidden-charm pentaquark states in a mass splitting model
• Masses and magnetic moments of exotic fully heavy pentaquarks