Cross sections for the $\gamma p\to K^{\ast +}\Lambda$ and $\gamma p\to K^{\ast +}{\Sigma }^0$ reactions measured at CLAS

Abstract

The first high-statistics cross sections for the reactions $\gamma p\to K^{\ast +}\Lambda$ and $\gamma p\to K^{\ast +}{\Sigma }^0$ were measured using the CLAS detector at photon energies between threshold and 3.9 GeV at the Thomas Jefferson National Accelerator Facility. Differential cross sections are presented over the full range of the center-of-mass angles, ${\theta }_{K^{\ast +}}^{CM}$, and then fitted to Legendre polynomials to extract the total cross section. Results for the $K^{\ast +}\Lambda$ final state are compared with two different calculations in an isobar and a Regge model, respectively. Theoretical calculations significantly underestimate the $K^{\ast +}\Lambda$ total cross sections between 2.1 and 2.6 GeV, but are in better agreement with present data at higher photon energies.

15 pages, 24 figures

References in corpus (1)

• Scalar kappa meson in K* photoproduction

Cited by in corpus (13)

• Discovery potential of hidden charm baryon resonances via photoproduction
• Nucleon resonances in $\gamma p\to K^{\ast +}\Lambda$
• Effects of $\Delta (1905)5/2^{+}$ on $K^{\ast }\Sigma$ photoproduction
• Effects of $N(2000)5/2^{+}$, $N(2060)5/2^{-}$, $N(2120)3/2^{-}$, and $N(2190)7/2^{-}$ on $K^{\ast }\Lambda$ photoproduction
• The $K^{\ast 0}\Lambda$ photoproduction off a neutron
• Photoproduction $\gamma p\to K^{\ast +}\Lambda$ in a Reggeized model
• Analysis of the data on spin density matrix elements for $\gamma p\to K^{\ast +}\Lambda$
• Regge approach to the reaction of $\gamma N\to K^{\ast }\Lambda$
• Nondiffractive feature of $\gamma N\to {\rho }^{\pm }N$ with $\rho$-meson electromagnetic multipole moments
• High Energy Behaviour of Light Meson Photoproduction
• Decay behavior of hidden-strange hadronic molecular state $N(2270)$
• Study of Baryon Resonances in the Photoproduction gamma p ---> K* Sigma(1190)
• Combined analysis of the data on cross sections and spin density matrix elements for $K^{\ast }\Sigma$ photoproduction reactions