ν¯inducedK¯production off the nucleon

Abstract

The charged current antikaon production off nucleons induced by antineutrinos is studied at low and intermediate energies. We extend here our previous calculation on kaon production induced by neutrinos. We have developed a microscopic model that starts from the SU (3) chiral Lagrangians and includes background terms and the resonant mechanisms associated to the lowest lying resonance in the channel, namely, the Σ * (1385). Our results could be of interest for the background estimation of various neutrino oscillation experiments like MiniBooNE and SuperK. They can also be helpful for the plannedν−experiments like MINERνA, NOνA and T2K phase II and for beta-beam experiments with antineutrino energies around 1 GeV.

Antineutrino inducedΛ(1405)production off the proton

“…This leads to little smaller cross section with respect to those of Ref. [56]. Furthermore, the p-wave contributions considered in Ref.…”

“…Furthermore, the p-wave contributions considered in Ref. [56] but not here make the cross sections bigger as one departs from threshold. Finally, the non relativistic approximation becomes poorer for the higher energy and momentum transfers that can be probed as the reaction energy increases.…”

“…1 of Ref. [56]) which contribute predominantly to the p-wave state of the φB system. Since our aim is to generate the Λ(1405), which appears in φB s-wave, we neglect these terms.…”

Charged lepton induced one kaon production off the nucleon

“…To account for the Q 2 dependence we have taken a global dipole form factor as in Ref. [25]. For the electron induced process, we have also considered the contribution from the Σ * (1385) resonance term, the weak couplings for which has been obtained using SU(3) symmetry from those of the ∆(1232) resonance.…”

“…In this paper, we explore the possibility of doing such experiments and present a quantitative analysis of the charged current reaction in which a kaon/antikaon is produced without conserving ∆S. This study is based on our earlier works on neutrino/antineutrino induced single kaon production [24][25][26] and the same formalism is applied here to study one kaon production off the nucleon obtained from electron as well as positron beams.…”