Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-12-20
Physics
High Energy Physics
High Energy Physics - Phenomenology
3 latex pages, 1 figure. Talk given at the NuFact10 Conference
Scientific paper
We re-evaluate our model predictions in Phys. Rev. D 79, 013002 (2009) for different observables in neutrino induced coherent pion production. This comes as a result of the new improved fit to old bubble chamber data of the dominant axial C_5^A nucleon-to-Delta form factor. We find an increase of 20%-30% in the values for the total cross sections. Uncertainties induced by the errors in the determination of C_5^A are computed. Our new results turn out to be compatible within about $1\sigma$ with the former ones. We also stress the existing tension between the recent experimental determination of the \sigma(CC coh \pi^+)}/\sigma(NC coh \pi^0)} $ ratio by the SciBooNE Collaboration and the theoretical predictions.
Hernandez Eduardo
Nieves Juan
Valverde M.
Vicente-Vacas M. J.
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