6533b82ffe1ef96bd1295ba2
RESEARCH PRODUCT
Coherent Pions From Neutrino Scattering Off Nuclei
M. J. Vicente VacasM. ValverdeJ. E. AmaroJ. NievesE. Hernándezsubject
CouplingPhysicsNuclear TheoryNuclear TheoryPropagatorFOS: Physical sciences7. Clean energyResonance (particle physics)Neutrino scatteringNuclear physicsNuclear Theory (nucl-th)PionDistortionHigh Energy Physics::ExperimentNeutrinoNucleonNuclear Experimentdescription
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.
year | journal | country | edition | language |
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2010-02-18 |