| Autor: |
Wickramaarachchi, Nilanga, Amaryan, Moskov, Meyer, Curtis, Schumacher, Reinhard A. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2020, Vol. 2249 Issue 1, p1-7, 7p, 3 Diagrams, 5 Graphs |
| Abstrakt: |
We present measurements of the photon beam asymmetry Σ for the reaction γp → K+Σ0(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 fully exclusive measurements of the photon beam asymmetry Σ in this reaction at high energies with detection of all final state particles. 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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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