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arxiv: 1102.2574 · v1 · pith:TKZCQGGMnew · submitted 2011-02-13 · ✦ hep-ph

Lambda(1520) photoprodcution with Regge contribution

classification ✦ hep-ph
keywords coefficientscomputelambdapolarization-transferaccountadditionagreementangle
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In this talk, we report our recent progresses on the Lambda(1520) photoproduction using the effective Lagrangian approach. In addition to the tree-level Born diagrams, we take into account the Regge-trajectories for the possible strange-meson exchanges in the t channel. We compute the angular and energy dependences of the production process, including polarization observables, such as the photon-beam asymmetry and the polarization-transfer coefficients, resulting in good qualitative agreement with current experimental data. We also compute the K^- angle distribution function in the Gottfried-Jackson frame, using the polarization-transfer coefficients in the z direction.

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