Weak Quasielastic Production of Hyperons and Threshold Production of Two Pions
Abstract
We have studied quasielastic charged current hyperon production induced by on free nucleon and the nucleons bound inside the nucleus and the results are presented for several nuclear targets like , and . The hyperon-nucleon transition form factors are determined from neutrino-nucleon scattering and semileptonic decays of neutron and hyperons using SU(3) symmetry. The nuclear medium effects(NME) due to Fermi motion and final state interaction(FSI) effect due to hyperon-nucleon scattering have been taken into account. Also we have studied two pion production at threshold induced by neutrinos off nucleon targets. The contribution of nucleon, pion, and contact terms are calculated using Lagrangian given by nonlinear model. The contribution of the Roper resonance has also been taken into account. The numerical results for the cross sections are presented and compared with the experimental results from ANL and BNL.
Keywords
Cite
@article{arxiv.1502.02216,
title = {Weak Quasielastic Production of Hyperons and Threshold Production of Two Pions},
author = {S. K. Singh and M. Sajjad Athar and M. Rafi Alam and Shikha Chauhan and E. Hernández and J. Nieves and M. Valverde and M. J. Vicente Vacas},
journal= {arXiv preprint arXiv:1502.02216},
year = {2015}
}
Comments
To appear in AIP Conf. Proc. of Workshop CETUP*14, 13 Pages, 14 Figures