Speaker
Description
We present measurements of the photon beam asymmetry $\Sigma$ for the reaction $\gamma p\to K^+\Sigma^0$(1193) using the GlueX experiment in Jefferson Lab’s Hall D. Data were collected using a linearly polarized photon beam with energy range 8.2-8.8 GeV incident on a liquid hydrogen target. Asymmetries are measured as functions of Mandelstam variables $t$ and $u$. These are the first exclusive measurements of the photon beam asymmetry $\Sigma$ in this reaction at high energies. In the $t$-channel, results show that the reaction is dominated by the natural-parity exchange of presumably the $K^{*}$(892) meson, as predicted by theoretical models. Results obtained for the $u$-channel are consistent with an intermediate baryon exchange mechanism predicted by theoretical models.
| Graduate Student | Yes |
|---|---|
| Early Consideration | No |
