The Photoproduction of Strangeness in $\gamma p \rightarrow \Lambda K^{+} \pi^{+} \pi^{-}$ with CLAS at Jefferson Lab

ORAL

Abstract

Following the prediction of exotic states by Quantum Chromodynamics, the search for new and exotic mesons has become a priority in nuclear physics. The g12 Experiment, using the CEBAF Large Acceptance Spectrometer (CLAS) at Jefferson Lab, has provided a large photoproduction dataset. This experiment used a liquid hydrogen target, a 4 - 5.5 GeV tagged photon beam, and acquired 26 billion events. The reaction $\gamma p \rightarrow \Lambda K^{+} \pi^{+} \pi^{-}$ provides an opportunity for searching for excited strange mesons, in the $K^{+} \pi^{+} \pi^{-}$ system, using the g12 dataset. In this reaction, the $\Lambda$ is identified via the p $\pi^{-}$ decay. Studies indicate two dominating decay modes: the $K^{*}(982) \pi$ mode, and the $K^{+}\rho$ mode. Preliminary results will be presented in this talk, along with the kinematics and dynamics of this reaction. Future plans, including partial wave analysis of the dataset, will be discussed briefly.

Authors

  • Hussein Ghoul

    Florida State University