Coherent Pions From Neutrino Scattering Off Nuclei

Details Coherent Pions From Neutrino Scattering Off Nuclei Coherent Pions From Neutrino Scattering Off Nuclei

2010-02-18

arxiv.org/abs/1002.3454v1

Physics

Nuclear Physics

Nuclear Theory

6 pages. To be published in the Proceedings of the Workshop on "Hadron and Nuclear Physics (HNP09)" Nov. 16-19, 2009, RCNP, Os

Scientific paper

We describe a model for pion production off nucleons and coherent pions from nuclei induced by neutrinos in the 1 GeV energy regime. Besides the dominant Delta pole contribution, it takes into account the effect of background terms required by chiral symmetry. Moreover, the model uses a reduced nucleon-to-Delta resonance axial coupling, which leads to coherent pion production cross sections around a factor two smaller than most of the previous theoretical estimates. Nuclear effects like medium corrections on the Delta propagator and final pion distortion are included.

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