6533b85afe1ef96bd12b8cb2
RESEARCH PRODUCT
Polarization of τ in quasielastic (anti)neutrino scattering: The role of spectral functions
Juan NievesJoanna Ewa SobczykNoemi RoccoNoemi Roccosubject
Scattering cross-sectionPhysicsNuclear Theory010308 nuclear & particles physicsScatteringFOS: Physical sciencesObservablePolarization (waves)01 natural sciences7. Clean energyNuclear physicsNuclear Theory (nucl-th)Formalism (philosophy of mathematics)High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciencesSpectral functionNeutrino010306 general physicsFermi gasdescription
We present a study of the $\tau$ polarization in charged-current quasielastic (anti)neutrino-nucleus scattering. The spectral function formalism is used to compute the differential cross section and the polarization components for several kinematical setups, relevant for neutrino-oscillation experiments. The effects of the nuclear corrections in these observables are investigated by comparing the results obtained using two different realistic spectral functions, with those deduced from the relativistic global Fermi gas model, where only statistical correlations are accounted for. We show that the spectral functions, although they play an important role when predicting the differential cross sections, produce much less visible effects on the polarization components of the outgoing $\tau$.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-01-01 | Physical Review C |