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

Abstract : The first high-statistics cross sections for the reactions $\gamma p \to K^{*+} \Lambda$ and $\gamma p \to K^{*+} \Sigma^0$ 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, $\theta^{CM}_{K^{*+}}$, and then fitted to Legendre polynomials to extract the total cross section. Results for the $K^{*+}\Lambda$ final state are compared with two different calculations in an isobar and a Regge model, respectively. Theoretical calculations significantly underestimate the $K^{*+} \Lambda$ total cross sections between 2.1 and 2.6 GeV, but are in better agreement with present data at higher photon energies.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00799258
Contributor : Emmanuelle Vernay <>
Submitted on : Tuesday, March 12, 2013 - 8:11:30 AM
Last modification on : Friday, November 27, 2020 - 5:52:10 AM

### Citation

W. Tang, K. Hicks, D. Keller, S. H. Kim, H. C. Kim, et al.. Cross sections for the $\gamma p \to K^{*+} \Lambda$ and $\gamma p \to K^{*+} \Sigma^{0}$ reactions measured at CLAS. Physical Review C, American Physical Society, 2013, 87, pp.065204. ⟨10.1103/PhysRevC.87.065204⟩. ⟨in2p3-00799258⟩

Record views