Polarization of tau in quasielastic (anti)neutrino scattering: the role of spectral functions

Abstract

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 $\tau$.

arXiv comment16 pages, 8 figures

References in corpus (26)

• Inclusive Quasi-Elastic Charged-Current Neutrino-Nucleus Reactions
• Neutrino-nucleus quasi-elastic and 2p2h interactions up to 10 GeV
• Inclusive quasi-elastic electron-nucleus scattering
• Electron- and neutrino-nucleus scattering in the impulse approximation regime
• Many Body approach to the inclusive $(e,e^{\prime })$ reaction from the quasielastic to the $\Delta$ excitation region
• A first measurement of the interaction cross section of the tau neutrino
• Extended Superscaling of Electron Scattering from Nuclei
• Electroweak nuclear response in quasi-elastic regime
• A Study of the Quasi-elastic (e,e'p) Reaction on ${}^{12}$C, ${}^{56}$Fe and ${}^{97}$Au
• Evidence for ${\nu }_{\mu }\to {\nu }_{\tau }$ appearance in the CNGS neutrino beam with the OPERA experiment
• Unified description of electron-nucleus scattering within the spectral function formalism
• Relativistic y-scaling and the Coulomb sum rule in nuclei
• Inclusive Nucleon Emission Induced by Quasi--Elastic Neutrino--Nucleus Interactions
• Tau Polarization in Tau-Neutrino Nucleon Scattering
• Total neutrino and antineutrino nuclear cross sections around 1 GeV
• Momentum Distribution in Nuclear Matter and Finite Nuclei
• In medium dispersion relation effects in nuclear inclusive reactions at intermediate and low energies
• Mesonic and Binding Contributions to the EMC Effect in a Relativistic Many Body Approach
• Impact of nuclear effects on the determination of the nucleon axial mass
• Final state interactions in the nuclear response at large momentum transfer
• Inelastic Neutrino-Nucleus Interactions within the Spectral Function Formalism
• Tau polarization in quasielastic charged-current neutrino(antineutrino)-nucleus scattering
• Nuclear effects on lepton polarization in charged-current quasielastic neutrino scattering
• Accuracy of the lepton-nucleus scattering models in the quasielastic region
• Weak production of strange and charm ground-state baryons in nuclei
• Scaling within the Spectral Function approach

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• Event Generators for High-Energy Physics Experiments
• Tau neutrinos at DUNE: new strategies, new opportunities
• Electroweak pion-production on nuclei within the extended factorization scheme
• Quasielastic production of polarized $\tau$ leptons in ${\nu }_{\tau }$ and ${\bar{\nu }}_{\tau }$ scattering from nucleons
• Axial and pseudoscalar form factors from charged current quasielastic neutrino-nucleon scattering
• Spin asymmetries in quasielastic charged current neutrino-nucleon scattering
• Summary of Workshop on Common Neutrino Event Generator Tools
• Model dependence of the polarization asymmetries in weak pion production off the nucleon
• Hyperon production in quasielastic ${\bar{\nu }}_{\tau }-$nucleon scattering
• Neutrino-nucleon elastic scattering in presence of non-standard interactions: cross sections and nucleon polarizations