Identify the hidden charm pentaquark signal from non-resonant background in electron-proton scattering

Abstract

We study the electroproduction of the LHCb pentaquark states with the assumption that they are resonant states. The main concern here is to investigate the final state distribution in the phase space in order to extract the feeble pentaquark signal from the large non-resonant background. Our results show that the ratio of the signal to background would increase significantly with proper kinematic cut, which would be very helpful for future experimental analysis.

16 pages, 5 figures, some minor modifications, accepted for publication in Chinese Physics C

References in corpus (16)

• Multiquark Resonances
• Pentaquark and Tetraquark states
• Observation of a narrow pentaquark state, $P_c(4312{)}^{+}$, and of two-peak structure of the $P_c(4450{)}^{+}$
• Exotics: Heavy Pentaquarks and Tetraquarks
• Prediction of narrow $N^{\ast }$ and ${\Lambda }^{\ast }$ resonances with hidden charm above 4 GeV
• Emergence of a complete heavy-quark spin symmetry multiplet: seven molecular pentaquarks in light of the latest LHCb analysis
• Strong LHCb evidence supporting the existence of the hidden-charm molecular pentaquarks
• Study of $P_c(4457)$, $P_c(4440)$, and $P_c(4312)$ in a quasipotential Bethe-Salpeter equation approach
• Interpretation of the LHCb $P_c$ States as Hadronic Molecules and Hints of a Narrow $P_c(4380)$
• Anatomy of the newly observed hidden-charm pentaquark states: $P_c(4312)$, $P_c(4440)$ and $P_c(4457)$
• Isospin breaking decays as a diagnosis of the hadronic molecular structure of the $P_c(4457)$
• Interpretation of the Narrow $J/\psi p$ Peaks in ${\Lambda }_b\to J/\psi p{K}^{-}$ Decay in the Compact Diquark Model
• Studying the P_c(4450) resonance in J/psi photoproduction off protons
• Possibility to study pentaquark states $P_c(4312),P_c(4440)$, and $P_c(4457)$ in $\gamma p\to J/\psi p$ reaction
• Phenomenological study on the $\bar{p}N\to \bar{N}N\pi \pi$ reactions
• Double pion production in $NN$ and $\bar{N}N$ collisions

Cited by in corpus (9)

• Electron-Ion Collider in China
• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• How to reveal the nature of three or more pentaquark states?
• Photoproduction of strange hidden-charm and hidden-bottom states
• Photo- and electro-production of narrow exotic states: from light quarks to charm and up to bottom
• Semi-inclusive lepto-production of hidden-charm exotic hadrons
• Semi-inclusive electroproduction of hidden-charm and double-charm hadronic molecules
• Research on the Phase space of three- and four-body final states process
• Assessing the impact of the electron ion collider in China on Deeply Virtual Compton Scattering