Tau neutrino as a probe of nonstandard interaction

Abstract

We study the $\Delta$-resonance and deep inelastic scattering contributions in the tau-neutrino nucleon scattering ${\nu }_{\tau }+N\to {\tau }^{-}+X$ and ${\bar{\nu }}_{\tau }+N\to {\tau }^{+}+X$ in the presence of a charged Higgs and a $W^{\prime }$ gauge boson. The new physics effects to the quasielastic process have been discussed in a previous work. The extractions of the atmospheric mixing angle ${\theta }_{23}$ rely on the standard model cross sections for ${\nu }_{\tau }+N\to {\tau }^{-}+X$ in ${\nu }_{\tau }$ appearance experiments. Corrections to the cross sections from the charged Higgs and $W^{\prime }$ contributions modify the measured mixing angle. We include form factor effects in the new physics calculations and find the deviations of the mixing angle. If high-energy Long Base Line experiments are designed to measure ${\theta }_{13}$ through tau neutrino appearance, the new physics effects to ${\nu }_{\tau }+N\to {\tau }^{-}+X$ and ${\bar{\nu }}_{\tau }+N\to {\tau }^{+}+X$ can impact the extraction of this mixing angle. Finally, we investigate the new physics effects on the polarization of the ${\tau }^{\mp }$ leptons produced in ${\nu }_{\tau }({\bar{\nu }}_{\tau })$ nucleon scattering.

27 pages, 31 figures. Accepted for Publication in Nuclear Physics B

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Cited by in corpus (8)

• The Azimuthal $B\to D^{\ast }{\tau }^{-}\overline{{\nu }_{\tau }}$ Angular Distribution with Tensor Operators
• EFT at FASER$\nu$
• Impact of non-standard interactions on neutrino-nucleon scattering
• Determination of mass hierarchy with ${\nu }_{\mu }\to {\nu }_{\tau }$ appearance and the effect of nonstandard interactions
• Is there really a $W\to \tau \nu$ puzzle?
• New Results on Neutrino Magnetic Moments and on Democratic Neutrinos
• Neutrino Nonstandard Interactions and Lepton Flavor Universality violation at SND@LHC via charm production
• Tau neutrino as a probe of nonstandard interactions via charged Higgs and $W^{\prime }$ contribution