Charged lepton induced one kaon production off the nucleon

TL;DR

This paper investigates the production of single kaons off nucleons induced by electrons and positrons at low energies, using a microscopic chiral Lagrangian model including background and resonance contributions.

Contribution

It introduces a detailed microscopic model based on SU(3) chiral Lagrangians for charged lepton induced kaon production, incorporating background and resonance effects.

Findings

Calculations show the feasibility of observing these processes at TJNAF and Mainz.

The model predicts cross sections considering resonance and background mechanisms.

Threshold energies for strangeness conserving electromagnetic reactions are analyzed.

Abstract

We study single kaon production off the nucleon induced by electrons (positrons) i.e. $e^-(e^+) + N \rightarrow \nu_e (\bar \nu_e) + \bar K (K) + N^\prime$ at low energies. The possibility of observing these processes with the high luminosity beams available at TJNAF and Mainz is discussed, taking into account that the strangeness conserving electromagnetic reactions have a higher energy threshold for $\bar K (K)$ production. The calculations are done using a microscopic model that starts from the SU(3) chiral Lagrangians, includes background terms and the resonant mechanisms associated to the lowest lying resonance $\Sigma^*(1385)$.