English

$K^0\Lambda$ photoproduction off the neutron with nucleon resonances

High Energy Physics - Phenomenology 2018-10-17 v2 High Energy Physics - Experiment Nuclear Experiment Nuclear Theory

Abstract

We investigate kaon photoproduction off the neutron target, i.e., γnK0Λ\gamma n \to K^0 \Lambda, focusing on the role of nucleon resonances given in the Review of Particle Data Group in the range of s16002200\sqrt{s} \approx 1600 - 2200 MeV. We employ an effective Lagrangian method and a Regge approach. The strong couplings of nucleon resonances with KΛK\Lambda vertices are constrained by quark model predictions. The numerical results of the total and differential cross sections are found to be in qualitative agreement with the recent CLAS and FOREST experimental data. We discuss the effects of the narrow nucleon resonance N(1685,1/2+)N(1685,1/2^+) on both the total and differential cross sections near the threshold energy. In addition, we present the results of the beam asymmetry as a prediction.

Keywords

Cite

@article{arxiv.1806.01992,
  title  = {$K^0\Lambda$ photoproduction off the neutron with nucleon resonances},
  author = {Sang-Ho Kim and Hyun-Chul Kim},
  journal= {arXiv preprint arXiv:1806.01992},
  year   = {2018}
}

Comments

13 pages. 7 figures. Final version that will appear in Physics Letters B

R2 v1 2026-06-23T02:20:30.283Z