Scalar kappa meson in K* photoproduction

Abstract

We propose that the scalar $\kappa (800)$ meson may play an important role in $K^{\ast }$ photoproduction. In the reactions of $\gamma p\to K^{\ast +}\Lambda$ and $\gamma p\to K^{\ast 0}{\Sigma }^{+}$, we consider the production mechanisms including $t$-channel $K^{\ast }$, $K$, $\kappa$ exchanges, s-channel $N$, $\Delta$ diagrams, and $u$-channel $\Lambda$, $\Sigma$, ${\Sigma }^{\ast }$ diagrams within the tree level approximation, and find that the $\kappa$-meson exchange may contribute significantly to $K^{\ast }\Sigma$ photoproduction, while it is rather supplementary in $K^{\ast }\Lambda$ photoproduction. We demonstrate how the observables of $K^{\ast }$ photoproduction can be used to constrain the $\kappa$ meson properties. In particular, the parity asymmetry can separate the $\kappa$ meson contribution in $K^{\ast }$ photoproduction.

arXiv comment9 pages, 4 figures, REVTeX

References in corpus (27)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Soft-core baryon-baryon potentials for the complete baryon octet
• A low-lying scalar meson nonet in a unitarized meson model
• On the nature of light scalar mesons from their large $N_c$ behavior
• Differential Cross Sections for gamma + p --> K+ + Y for Lambda and Sigma0 Hyperons
• Four Sorts of Mesons
• Dalitz Plot Analysis of the Decay D^+ --> K^- pi^+ pi^+ and Indication of a Low-Mass Scalar K pi Resonance
• Putative Light Scalar Nonet
• Strange Decays of Nonstrange Baryons
• Dalitz Analysis of the Decay $D^0\to K^{-}{\pi }^{+}{\pi }^0$
• Evidence for a scalar kappa(900) resonance in pi-K scattering
• Evidence for kappa Meson Production in J/psi -> bar{K}^*(892)^0K^+pi^- Process
• Analysis of Kπ-scattering phase shift and existence of κ(900)-particle
• The $\kappa$ resonance in s wave $\pi K$ scatterings
• Form factors and photoproduction amplitudes
• The Mixing Angle of the Lightest Scalar Nonet
• Evidence for new interference phenomena in the decay D+ to K- pi+ mu+ nu
• Vector Meson Dominance Model for Radiative Decays Involving Light Scalar Mesons
• There is no $\kappa (900)$
• Polarization Observables in Phi Meson Photoproduction and the Strangeness Content of the Proton
• The kappa in E791 data for D->K-pi-pi
• Rho meson photoproduction at low energies
• K* photoproduction off the nucleon: gamma N --> K* Lambda
• Pentaquark Theta^+(1540) production in gamma N --> K Anti-K N
• One-loop corrections to omega photoproduction near threshold
• New anomalous trajectory in Regge theory
• Nuclear shadowing in polarized DIS on ^6LiD at small x and its effect on the extraction of the deuteron spin structure function g_{1}^{d}(x,Q^2)

Cited by in corpus (26)

• Nucleon and Delta resonances in K Sigma(1385) photoproduction from nucleons
• Contribution of higher nucleon resonances to K*Λ photoproduction
• K^0 pi^0 Sigma^+ and K^*0 Sigma^+ photoproduction off the proton
• Nucleon resonances in $\gamma p\to K^{\ast +}\Lambda$
• Cross Sections for the $\gamma p\to K^{\ast 0}{\Sigma }^{+}$ Reaction at $E_{\gamma }=1.7-3.0$ GeV
• $\varphi$ photoprodution with coupled-channel effects
• Effects of $\Delta (1905)5/2^{+}$ on $K^{\ast }\Sigma$ photoproduction
• Charged K* Photoproduction in a Regge model
• Effects of $N(2000)5/2^{+}$, $N(2060)5/2^{-}$, $N(2120)3/2^{-}$, and $N(2190)7/2^{-}$ on $K^{\ast }\Lambda$ photoproduction
• Cross sections for the $\gamma p\to K^{\ast +}\Lambda$ and $\gamma p\to K^{\ast +}{\Sigma }^0$ reactions measured at CLAS
• K*Sigma photoproduction off the proton target with baryon resonances
• Potential higher radial excitations in the light pseudoscalar meson family
• Production of the ${\eta }_1(1855)$ through kaon induced reactions under the assumptions that it is a molecular or a hybrid state
• The $K^{\ast 0}\Lambda$ photoproduction off a neutron
• Exploring kaon induced reactions for unraveling the nature of the scalar meson $a_0(1817)$
• Production of $\varphi (2170)$ and $\eta (2225)$ in a kaon induced reaction
• Effects of $N(2000){5/2}^{+}$ on $\gamma p\to K^{+}\Lambda (1405)$
• Scalar and axial-vector mesons
• Regge approach to the reaction of $\gamma N\to K^{\ast }\Lambda$
• Analysis of the data on spin density matrix elements for $\gamma p\to K^{\ast +}\Lambda$
• Photoproduction $\gamma p\to K^{\ast +}\Lambda$ in a Reggeized model
• Understanding of the BESIII measurement of (anti)hyperon-nucleon scattering
• Studying ${\Lambda }^{\ast }$ resonances in the $p\bar{p}\to \Lambda \bar{\Lambda }\eta$ reaction
• Study of Baryon Resonances in the Photoproduction gamma p ---> K* Sigma(1190)
• K*Lambda(1116) photoproduction and nucleon resonances
• Combined analysis of the data on cross sections and spin density matrix elements for $K^{\ast }\Sigma$ photoproduction reactions