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DOE OSTI · 21611915

{Lambda}(1520) photoproduction with Regge contribution

Nam, Seung-il·Yu, Byung-Geel·Kao, Chung-Wen
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Abstract

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{sup -} angle distribution function in the Gottfried-Jackson frame, using the polarization-transfer coefficients in the z direction.

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDSASYMMETRYBARYONSBASIC INTERACTIONSBEAMSBOSONSCHIRALITYDIAGRAMSDISTRIBUTION FUNCTIONSELECTROMAGNETIC INTERACTIONSELEMENTARY PARTICLESENERGY DEPENDENCEFERMIONSFEYNMAN DIAGRAMFUNCTIONSHADRONSHYPERONSINFORMATIONINTERACTIONSKAONSKAONS MINUSLAGRANGIAN FUNCTIONLAMBDA BARYONSLAMBDA-1520 BARYONSMESONSPARTICLE INTERACTIONSPARTICLE PRODUCTIONPARTICLE PROPERTIESPHOTON BEAMSPHOTOPRODUCTIONPOLARIZATIONPSEUDOSCALAR MESONSREGGE TRAJECTORIESSTRANGE MESONSSTRANGE PARTICLEST CHANNEL

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Nam, Seung-il, Yu, Byung-Geel, Kao, Chung-Wen. 2011-10-21. {Lambda}(1520) photoproduction with Regge contribution. https://doi.org/10.1063/1.3647386

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