English

K* photoproduction off the nucleon: gamma N --> K* Lambda

High Energy Physics - Phenomenology 2008-11-26 v4 Nuclear Theory

Abstract

We study the photoproduction of K(892)K^*(892) vector meson from both the charged and neutral reactions, γpK+Λ\gamma p \to K^{*+} \Lambda and γnK0Λ\gamma n \to K^{*0} \Lambda. The production mechanisms that we consider include tt-channel KK^*, KK, κ\kappa exchanges, s-channel nucleon diagram, and uu-channel Λ\Lambda, Σ\Sigma, Σ\Sigma^* diagrams. These could constitute important backgrounds for future investigation of ``missing'' resonances that can be searched for especially in these reactions. The tt-channel KK meson exchange is found to dominate both reactions. The total and differential cross sections are presented together with some spin asymmetries.

Keywords

Cite

@article{arxiv.hep-ph/0602112,
  title  = {K* photoproduction off the nucleon: gamma N --> K* Lambda},
  author = {Yongseok Oh and Hungchong Kim},
  journal= {arXiv preprint arXiv:hep-ph/0602112},
  year   = {2008}
}

Comments

16 pages, 7 figures, REVTeX, discussions added, to appear in Phys. Rev. C

R2 v1 2026-07-22T14:07:09.691Z