2006/11/30 by Seung-il Nam, Ki-Seok Choi, Atsushi Hosaka +1
Engineering · Physics and Astronomy · #Nuclear physics research studies #Particle Accelerators and Free-Electron Lasers #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevd.75.014027
published as Phys.Rev.D75:014027,2007 · 10 pages, 14 figures, accepted for publication in PRD
arxiv created 2007/01/05 · openalex publication_date 2007/01/30 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We study the reaction mechanism for the photoproduction of the \ensuremathΛ(1520), based on an effective Lagrangian approach. We investigate each contribution of the s-, u-, t-channel processes and contact term, separately. One of the most characteristic features of this reaction is the contact-term dominance which governs the photoproduction from the proton, when the K*-exchange contribution is possibly not too large. We suggest several different ways of the polarizations and arrangement of the beam and target to understand the role of each contribution separately in future experiments.