Pomeron, nucleon-resonance, and $(0^{+},0^{-},1^{+})$-meson contributions in $\varphi$-meson photoproduction

Abstract

We investigate the reaction mechanism of the $\varphi$-meson photoproduction off the proton target, i.e., $\gamma p\to \varphi p$, up to $\sqrt{s}=2.8$ GeV. For this purpose, we employ an effective Lagrangian approach in the tree-level Born approximation, and we employ various experimental and theoretical inputs. As a theoretical setup, the vectorlike Pomeron ($C=+1$) is taken into account as a parameterized two-gluon exchange contribution. We also consider $f_1(1285)$ axial-vector-meson, ($\pi ,\eta$) pseudoscalar-meson, and ($a_0,f_0$) scalar-meson exchanges in the $t$ channel, in addition to the experimentally confirmed nucleon resonances, such as $N^{\ast }(2000,5/2^{+})$ and $N^{\ast }(2300,1/2^{+})$, for the direct $\varphi$-meson radiations in the $s$ and $u$ channels. We provide numerical results for the total and differential cross sections as well as the spin-density matrices in the Gottfried-Jackson, Adair, and helicity frames. We observe that, together with the universally accepted pomeron contribution, the considered meson and nucleon-resonance contributions play significant roles in reproducing the experimental data for the forward and backward $\varphi$-meson scattering-angle regions, respectively, indicating the nontrivial interferences between mesonic and baryonic contributions.

arXiv comment18 pages, 11 figures

References in corpus (47)

• Observation of $J/\psi p$ resonances consistent with pentaquark states in ${\Lambda }_b^0\to J/\psi K^{-}p$ decays
• Observation of a narrow pentaquark state, $P_c(4312{)}^{+}$, and of two-peak structure of the $P_c(4450{)}^{+}$
• Soft-core hyperon-nucleon potentials
• Soft-core baryon-baryon potentials for the complete baryon octet
• Formation of hidden-charm pentaquarks in photon-nucleon collisions
• Gauge-invariant tree-level photoproduction amplitudes with form factors
• Gauge-invariant theory of pion photoproduction with dressed hadrons
• Photoproduction of hidden charm pentaquark states $P_c^{+}(4380)$ and $P_c^{+}(4450)$
• Effective Functional Form of Regge Trajectories
• Diffractive $\varphi$-meson photoproduction on proton near threshold
• Coupled-channel analysis of the $\omega$-meson production in $\pi N$ and $\gamma N$ reactions for c.m. energies up to 2 GeV
• Photoproduction of Exotic Baryon Resonances
• Form factors and photoproduction amplitudes
• Forward-angle K+ Lambda photoproduction in a Regge-plus-resonance approach
• Studying the P_c(4450) resonance in J/psi photoproduction off protons
• Strange vector currents and the OZI-rule
• Photoproduction of Vector Mesons at Large Transfer
• Nucleon and Delta resonances in K Sigma(1385) photoproduction from nucleons
• Exclusive diffractive processes and the quark substructure of mesons
• Data analysis techniques, differential cross sections, and spin density matrix elements for the reaction $\gamma p\to \varphi p$
• Differential cross sections and spin density matrix elements for the reaction gamma p -> p omega
• DRAFT: Photoproduction of the ${\rho }^0$ meson on the proton at large momentum transfer
• Spin effects and baryon resonance dynamics in phi-meson photoproduction at few GeV
• A Bayesian analysis of kaon photoproduction with the Regge-plus-resonance model
• Partial wave analysis of the reaction gamma p -> p omega$ and the search for nucleon resonances
• Do the $P_c^{+}$ Pentaquarks Have Strange Siblings?
• Photoproduction of ω Mesons off the Proton
• $\varphi$-meson photoproduction on Hydrogen in the neutral decay mode
• Pomeron exchange and exclusive electroproduction of rho-mesons in QCD
• $\varphi$ photoprodution with coupled-channel effects
• Is the nonmonotonic behavior in the cross section of phi photoproduction near threshold a signature of a resonance?
• New anomalous trajectory in Regge theory
• Measurement of Spin-Density Matrix Elements for $\varphi$-Meson Photoproduction from Protons and Deuterons Near Threshold
• Photoproduction of $\Lambda (1405)$ with the $N^{\ast }$ and $t$-channel Regge contributions
• A coupled-channel analysis for phi-photoproduction with Lambda(1520)
• Nucleon Spin and the Mixing of Axial Vector Mesons
• Nucleonic resonance effects in the $\varphi$ meson photoproduction
• Preserving Local Gauge Invariance with t-Channel Regge Exchange
• On the near-threshold peak structure in the differential cross section of ϕ-meson photoproduction: indication of a missing resonance with non-negligible strangeness content
• K*Sigma photoproduction off the proton target with baryon resonances
• Interference effect between $\varphi$ and $\Lambda (1520)$ production channels in the $\gamma p\to K^{+}{K}^{-}p$ reaction near threshold
• Non-diffractive mechanisms in the $\varphi$ meson photoproduction on nucleons
• $\varphi$ photoproduction on the proton at $E_{\gamma }$ = 1.5 - 2.9 GeV
• $K^0\Lambda$ photoproduction off the neutron with nucleon resonances
• Photon beam asymmetry $\Sigma$ in the reaction $\vec{\gamma }p\to p\omega$ for $E_{\gamma }$ = 1.152 to 1.876 GeV
• Measurement of the Σ beam asymmetry for the ω photo-production off the proton and the neutron at GRAAL
• Effects of nucleon resonances on $\eta$ photoproduction off the neutron reexamined

Cited by in corpus (4)

• Searching for the odderon in $pp\to pp{K}^{+}{K}^{-}$ and $pp\to pp{\mu }^{+}{\mu }^{-}$ reactions in the $\varphi (1020)$ resonance region at the LHC
• Investigation of electroproduction of $\varphi$ mesons off protons
• Analysis of the interaction between $\varphi$ meson and nucleus
• Possible ${\Sigma }_c^{\ast }\bar{\Sigma }$ molecular states