Photoproduction $γp \to K^+Λ(1520)$ in an effective Lagrangian approach

22 Jan 2021 Neng-Chang Wei Yu Zhang Fei Huang De-Min Li

The data on differential cross sections and photon-beam asymmetries for the $\gamma p \to K^+\Lambda(1520)$ reaction have been analyzed within a tree-level effective Lagrangian approach. In addition to the $t$-channel $K$ and $K^\ast$ exchanges, the $u$-channel $\Lambda$ exchange, the $s$-channel nucleon exchange, and the interaction current, a minimal number of nucleon resonances in the $s$ channel are introduced in constructing the reaction amplitudes to describe the data... (read more)

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Categories


  • HIGH ENERGY PHYSICS - PHENOMENOLOGY
  • NUCLEAR THEORY