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RESEARCH PRODUCT
Neutral current coherent pion production
M. J. Vicente VacasL. Alvarez-rusoLi-sheng Gengsubject
PhysicsNuclear and High Energy PhysicsParticle physicsNuclear TheoryNeutral currentHadronNuclear TheoryFOS: Physical sciencesFísicaCoupling (probability)High Energy Physics - ExperimentNuclear physicsNuclear Theory (nucl-th)High Energy Physics - PhenomenologyHigh Energy Physics - Experiment (hep-ex)PionHigh Energy Physics - Phenomenology (hep-ph)Production (computer science)High Energy Physics::ExperimentSensitivity (control systems)NeutrinoNuclear Experiment (nucl-ex)NucleonNuclear ExperimentNuclear Experimentdescription
We investigate the neutrino induced coherent pion production reaction at low and intermediate energies. The model includes pion, nucleon and Delta(1232) resonance as the relevant hadronic degrees of freedom. Nuclear medium effects on the production mechanisms and pion distortion are taken into account. We obtain that the dominance of the Delta excitation holds due to large cancellations among the background contributions. We consider two sets of vector and axial-vector N-Delta transition form-factors, evidencing the strong sensitivity of the results to the axial coupling C5A(0). The differences between neutrino and antineutrino cross sections, emerging from interference terms, are also discussed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-07-14 |