Incoherent pion production in neutrino nucleon scattering within a Fermi semearing approach

E. BERRUETA MARTÍNEZ; A. MARIANO Y C. BARBERO

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN

PHYSICAL SOC JAPAN

Año: 2016 vol. 12 p. 100421 - 100425

0031-9015

In this paper, we compute the charged current (CC) cross section of the background processes nu_muA ?¨ mu+(A − 1)N?? pi which are involved in the measurement of the oscillation probability P(nu_mu ?¨ nu_e), for the CP-mirror processes of nu_mu ?¨ nu_e. We develop a model that takes into account: binding effects, nucleon smearing, and final state interactions (FSI) between nucleons-pions and the residual nucleus. It was also suitable in describing other channels as nu_mu A ?¨ mu (A − 1)N??pi, keeping covariance, gauge invariance and partially unitarity.Our calculations are compared with other dynamical models that have introduced the Delta(1232) resonance but inconsistently, and contrasted with experimental data obtained at CERN PS in Gargamell chamber.