SciPost Submission Page
Non-Standard Neutrino Interactions and Neutral Gauge Bosons
by Julian Heeck, Manfred Lindner, Werner Rodejohann, Stefan Vogl
Submission summary
| Authors (as registered SciPost users): | Julian Heeck |
| Submission information | |
|---|---|
| Preprint Link: | scipost_201812_00042v3 (pdf) |
| Date accepted: | March 22, 2019 |
| Date submitted: | March 15, 2019, 1 a.m. |
| Submitted by: | Julian Heeck |
| Submitted to: | SciPost Physics |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
|
| Approach: | Theoretical |
Abstract
We investigate Non-Standard Neutrino Interactions (NSI) arising from a flavor-sensitive $Z'$ boson of a new $U(1)'$ symmetry. We compare the limits from neutrino oscillations, coherent elastic neutrino--nucleus scattering, and $Z'$ searches at different beam and collider experiments for a variety of straightforward anomaly-free $U(1)'$ models generated by linear combinations of $B-L$ and lepton-family-number differences $L_\alpha-L_\beta$. Depending on the flavor structure of those models it is easily possible to avoid NSI signals in long-baseline neutrino oscillation experiments or change the relative importance of the various experimental searches. We also point out that kinetic $Z$-$Z'$ mixing gives vanishing NSI in long-baseline experiments if a direct coupling between the $U(1)'$ gauge boson and matter is absent. In contrast, $Z$-$Z'$ mass mixing generates such NSI, which in turn means that there is a Higgs multiplet charged under both the Standard Model and the new $U(1)'$ symmetry.
Author comments upon resubmission
Published as SciPost Phys. 6, 038 (2019)