Lambda(1520) photoproduciton off the proton target with Regge contributions

Abstract

We investigate the Lambda(1520,3/2^-)=Lambda* photoproduction off the proton target with the Regge contributions to go beyond the resonance region, in addition to the tree-level Born terms consisting of the s, t, and u channels, and contact term. For this purpose, the Reggeized propagators for the K and K* exchanges in the t channel are employed in a gauge-invariant manner. We also take into account the contribution from a nucleon resonance D_{13}(2030). We compute the angular and energy dependences of the production process, including polarization observables, such as the photon-beam asymmetry and the polarization-transfer coefficients, resulting in good qualitative agreement with current experimental data. It turns out that the Regge contributions are necessary to explain the high-energy data beyond E_{gamma}~4 GeV especially for the angular dependences in the forward-scattering region. On the contrary, the polarization observables are insensitive to the Regge contributions due to the contact-term dominance and gauge invariance. We also compute the K^{-}-angle distribution function in the Gottfried-Jackson frame, using the polarization-transfer coefficients in the z direction. It shows nontrivial theta and E_{gamma} dependences in the forward-scattering region.

19 pages, 27 figures, accepted for publication in Phys.Rev.C.

References in corpus (12)

• Nucleon and Delta resonances in K Sigma(1385) photoproduction from nucleons
• Gauge-invariant approach to meson photoproduction including the final-state interaction
• Baryon resonances and polarization transfer in hyperon photoproduction
• Photon induced Lambda(1520) production and the role of the K^* exchange
• Regge-plus-resonance treatment of the p(gamma,K^+)Sigma^0 and p(gamma,K^0)Sigma^+ reactions at forward kaon angles
• Cross Sections and Beam Asymmetries for K+ Sigma*- photoproduction from the deuteron at 1.5-2.4 GeV
• Near-threshold photoproduction of $\Lambda (1520)$ from protons and deuterons
• Positivity Constraints on Spin Observables in Exclusive Pseudoscalar Meson Photoproduction
• eta photoproduction and N* resonances
• Test of the reaction mechanism for gamma N -> K Lambda(1520) using the polarized photon
• Polarization in Hyperon Photo- and Electro- Production
• Magnetic interaction induced by the anomaly in kaon-photoproductions

Cited by in corpus (23)

• Differential Photoproduction Cross Sections of the Sigma0(1385), Lambda(1405), and Lambda(1520)
• The role of the $N^{\ast }(2080)$ resonance in the $\vec{\gamma }p\to K^{+}\Lambda (1520)$ reaction
• The roles of nucleon resonances in $\Lambda$(1520) photoproduciton off proton
• Re-analysis of the $\Lambda (1520)$ photoproduction reaction
• The $\Sigma$(1385) photoproduciton from proton within a Regge-plus-resonance approach
• Preserving Local Gauge Invariance with t-Channel Regge Exchange
• Theoretical study of the $\Lambda$(1520) photoproduction off proton target based on the new CLAS data
• Analysis of recent CLAS data on ${\Sigma }^{\ast }(1385)$ photoproduction off a neutron target
• Analysis of recent CLAS data on $f_1(1285)$ photoproduction
• The $K^{\ast 0}\Lambda$ photoproduction off a neutron
• Studying $X(2100)$ hadronic decays and predicting its pion and kaon induced productions
• Investigation of pion-induced $f_1(1285)$ production off a nucleon target within an interpolating Reggeized approach
• Charged pion photoproduction with the Delta(1232) baryon beyond the resonance region
• Photoproduction $\gamma p\to K^{+}\Lambda (1520)$ in an effective Lagrangian approach
• Differential cross sections for Λ(1520) using photoproduction at CLAS
• Photoproduction $\gamma p\to K^{\ast +}\Lambda$ in a Reggeized model
• Electroproduction of $\Lambda (1520)$ off the nucleon target with the nucleon resonances
• Photoproduction of $\gamma p\to K^{+}{\Lambda }^{\ast }(1520)$ and decay of ${\Lambda }^{\ast }(1520)\to K^{-}p$ in the Reggeized framework
• Productions of $f_1(1420)$ in pion and kaon induced reactions
• Measurement of Spin Density Matrix Elements in $\Lambda (1520)$ Photoproduction at 8.2-8.8 GeV
• The role of $N^{\ast }(2120)$ nucleon resonance in $K\Lambda (1520)$ photon and hadronic productions
• Analysis of the data for $\gamma p\to f_1(1285)p$ photoproduction
• Photoproduction $\gamma p\to K^{+}\Lambda (1690)$ in an effective Lagrangian approach