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arXiv · 1405.1145

Theoretical study of the $Λ$(1520) photoproduction off proton target based on the new CLAS data

Jun He
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Abstract

Based on the high precision experimental data released by the CLAS Collaboration recently, the interaction mechanism of the photoproduction of $Λ$(1520) off a proton target is investigated within a Regge-plus-resonance approach. With the decay amplitudes predicted in the constituent quark model, the roles played by nucleon resonances are studied. It is found that $N(2120)$ provides the most important contribution among the nucleon resonances predicted in the constituent quark model. The $t$ channel contribution with Regge trajectories and the $Λ$ intermediate $u$ channel are responsible to the behaviors of the differential cross section at forward and backward angles, respectively.

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Jun He. 2014-05-06. Theoretical study of the $Λ$(1520) photoproduction off proton target based on the new CLAS data. https://doi.org/10.1016/j.nuclphysa.2014.03.008

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