Tina Leitner
(Universitaet Giessen)
22/05/2009, 09:00
Single pion production
Talk
A precise determination of neutrino oscillation parameters demands for an equally precise knowledge of the neutrino nucleus interaction process. Neutrino induced pion production is strongly influenced by nuclear effects. Their understanding is crucial since neutral current $\pi0$ production is a major background in $\nu_e$ appearance experiments, while charged current $\pi^+$ production...
Prof.
Emmanuel Paschos
(Technical Iniversity Dortmund)
22/05/2009, 09:25
Single pion production
Talk
In the talk I will present results on coherent pion production by neutrinos scattered off nuclei. The method is based on PCAC and uses helicity cross sections for the scattering of weak gauge bosons on nuclei including the lepton mass in the formulas. The process relies on experimental data for elastic pion-nucleus scattering, thus it avoids discussing what is happening within the Nucleus. A...
Prof.
Christoph Berger
(I. Physikalisches Institut derRWTH Aachen University, Germany)
22/05/2009, 09:45
Single pion production
Talk
Coherent production of charged and neutral pions in low energy neutrino reactions is discussed in the framework of the partially conserved axial vector current theory (PCAC). The role of lepton mass effects in suppressing the production of charged
pions is included. Instead of using models of pion nucleus scattering,
the available data on pion Carbon scattering are implemented for
an...
Dr
Eliecer Hernandez-Gajate
(University of Salamanca)
22/05/2009, 10:00
Single pion production
We present a model for neutrino-induced coherent pion production off nuclei in the energy regime of interest for present and forthcoming neutrino oscillation experiments. It is based on a microscopic model for pion production off the nucleon that, besides the dominant $\Delta$ pole contribution, takes into account the effect of background terms required by chiral symmetry. Moreover, the...
Dr
Satoshi Nakamura
(Universidade de Sao Paulo)
22/05/2009, 10:15
Single pion production
Talk
We report our recent study on the coherent pion production in the neutrino-nucleus scattering in the sub- and few-GeV region. In our approach, the transition amplitude is calculated by summing elementary amplitudes of a weak pion production off a single nucleon embedded in a nuclear environment. Therefore, it is of primary importance to start with a model which reasonably describes electroweak...
