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arXiv · 1110.6515

Contribution of higher nucleon resonances to K*{\Lambda} photoproduction

Sang-Ho Kim·Seung-il Nam·Yongseok Oh·Hyun-Chul Kim
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Abstract

We investigate K*{\Lambda}(1116) photoproduction off the proton and neutron targets in the effective Lagrangian method in the tree-level Born approximation. In addition to the K, K*, and {\kappa} exchanges which are the main contributions to the reaction, we consider the contributions from the higher nucleon resonances D13(2080) and the D15(2200). We find that the D13(2080) plays a crucial role in explaining the enhancement of the near-threshold production rate, which results in a good agreement with the experimental data for the proton targets, while the contribution of the D15(2200) is rather small. A similar conclusion is drawn for K* photoproduction off the neutron targets. In addition to the energy and angular dependence of the cross sections, we present the predictions on the photon-beam asymmetry.

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Sang-Ho Kim, Seung-il Nam, Yongseok Oh, Hyun-Chul Kim. 2011-10-29. Contribution of higher nucleon resonances to K*{\Lambda} photoproduction. https://doi.org/10.1103/physrevd.84.114023

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