Photoproduction of $K^{0}\Sigma^{+}$ at CLAS

POSTER

Abstract

Hadron spectroscopy is used to acquire more information on the quark-gluon interactions and existence of excited hadrons. The photoproduction reaction $\gamma p\rightarrow K^{0}_{S}\Sigma^{+}$ using data from two different experiments of CLAS at Jefferson Lab has been analyzed. This reaction is underexplored among the isospin-related $K\Sigma$ channels. In the g12 experiment, photons ranging in energy from 1.1 to 5.4 GeV were incident on a liquid hydrogen target and the differential cross section was extracted. From the g9a experiment, where circularly-polarized photons were incident on a longitudinally-polarized butanol target, the helicity asymmetry E has been determined. In both experiments, events which contained the proton and three-pion final state $\pi^{+}\pi^{-}p\pi^{0}$ were selected and an event-based quality factor determination was used for background subtraction. Monte Carlo simulations were then preformed to determine acceptance corrections for the cross section. These observables will have a significant impact on partial wave analysis that aims on extracting nucleon resonances from photoproduction data.

Authors

  • Kyle Romines

    Florida State Univ

  • Zulkaida Akbar

    Florida State Univ

  • Volker Crede

    Florida State Univ