The Beam-Helicity Asymmetries for the Reactions $\gamma p \rightarrow p K^{+} K^{-}$, $\gamma p \rightarrow \Xi^{-} K^{+} K^{+}$, and $\gamma p \rightarrow p \pi^{+} \pi^{-}$

ORAL

Abstract

The first time measurement of the angular dependence of the beam-helicity asymmetry is demonstrated for the reactions $\gamma p \rightarrow p K^{+} K^{-}$ and $\gamma p \rightarrow \Xi^{-} K^{+} K^{+}$. Both results are compared to the beam-helicity asymmetry of the reaction $\gamma p \rightarrow p \pi^{+} \pi^{-}$. The asymmetry for $\gamma p \rightarrow p K^{+} K^{-}$ is further studied as a function of the kinematical variables photon beam energy, invariant mass of the $K^{+} K^{-}$ system, and invariant mass of the $p K^{-}$ system. It is shown that the asymmetry is sensitive to these variables and thus are key observables in the modeling of the reaction's dynamics. The data obtained was from the CLAS g12 experiment.

Authors

  • Rafael Badui

    • Florida Intl Univ
  • Jason Bono

    • Florida Intl Univ
  • Lei Guo

    • Florida Intl Univ
  • Brian Raue

    • Florida Intl Univ