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Neutrino-nucleon elastic scattering in presence of non-standard interactions: cross sections and nucleon polarizations

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arxiv 2412.04818 v2 pith:HEEK3ECU submitted 2024-12-06 hep-ph hep-exhep-latnucl-th

Ilma , M. Rafi Alam , L. Alvarez-Ruso , M. Benitez Galan , I. Ruiz Simo , S. K. Singh This is my paper · ORCID
classification hep-phhep-exhep-latnucl-th
keywords nucleoncrosscurrentformneutrino-nucleonscatteringsectionsanti
verification ladder T0 review T1 audit T2 compute T3 formal
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New physics beyond the Standard Model (SM) may appear in the form of non-standard neutrino interactions (NSI). We have studied neutral current (anti)neutrino-nucleon scattering in presence of NSI. We obtain that in this scenario, nucleon matrix elements depend not only on the isovector axial nucleon form factor but also on the isoscalar one. For the axial form factors we consequently rely on the quark flavor decomposition performed by QCD simulations in the lattice (LQCD). We have examined cross sections and polarization observables. For the current bounds on diagonal muon flavor NSI couplings we find substantial deviations from the SM predictions in cross sections and transverse polarizations of the outgoing nucleons. In view of the progress in the precision of LQCD determinations of nucleon properties, modern measurements of neutral current (anti)neutrino-nucleon scattering will be in the position to discover or significantly constrain NSI.

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Cited by 2 Pith papers

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  1. Moving a Detector to Probe New Neutrino Interactions: IWCD at Hyper-Kamiokande

    hep-ph 2026-08 conditional novelty 6.0 of 10

    Using the movable IWCD near detector at Hyper-Kamiokande, the NCQE-to-CCQE event ratio sampled at three off-axis angles can constrain axial and vector neutrino non-standard interactions at the 0.05 to 0.12 level, brea...

  2. Polarization Probes of New Physics in Lepton-Flavor-Violating Hyperon Production from $e^- N \to \tau^- Y$ Scattering

    hep-ph 2025-06 conditional novelty 4.0 of 10

    Polarization asymmetries in e-N to tau-Y scattering could distinguish hyperon form factor models and the chiral nature of new lepton-flavor-violating vector interactions, but predicted rates are at most a few hundred ...

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