6533b7d3fe1ef96bd12615a9
RESEARCH PRODUCT
Coherent pion production off nuclei at T2K and MiniBooNE energies revisited
M. ValverdeE. HernándezJuan Nievessubject
PhysicsNuclear and High Energy PhysicsParticle physicsMesonNuclear Theory010308 nuclear & particles physicsHadronForm factor (quantum field theory)FísicaFOS: Physical sciencesElementary particle01 natural sciences7. Clean energyNuclear physicsBaryonNuclear Theory (nucl-th)High Energy Physics - PhenomenologyPionHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciencesProduction (computer science)010306 general physicsNucleondescription
As a result of a new improved fit to old bubble chamber data of the dominant axial C-5(A) nucleon-to-delta form factor, and due to the relevance of this form factor for neutrino induced coherent pion production, we reevaluate our model predictions in [Phys. Rev. D 79, 013002 ( 2009)] for different observables of the latter reaction. Central values for the total cross sections increase by 20%-30%, while differential cross sections do not change their shape appreciably. Furthermore, we also compute the uncertainties on total, differential, and flux-averaged cross sections induced by the errors in the determination of C-5(A). Our new results turn out to be compatible within about 1 sigma with the former ones. Finally, we stress the existing tension between the recent experimental determination of the sigma(CCcoh pi(+))/sigma(NCcoh pi(0)) ratio by the SciBooNE Collaboration and the theoretical predictions.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-10-14 |