Probing physics beyond the standard model using sterile neutrino models
Alternative Mechanisms Investigation for the Results of Neutrino Oscillation in th...
| Full text | |
| Author(s): |
Falkowski, Adam
;
Gonzalez-Alonso, Martin
;
Tabrizi, Zahra
Total Authors: 3
|
| Document type: | Journal article |
| Source: | Journal of High Energy Physics; v. N/A, n. 5, p. 34-pg., 2019-05-27. |
| Abstract | |
We study constraints on the Standard Model Effective Field Theory (SMEFT) from neutrino oscillations in short-baseline reactor experiments. We calculate the survival probability of reactor antineutrinos at the leading order in the SMEFT expansion, that is including linear effects of dimension-6 operators. It is shown that, at this order, reactor experiments alone cannot probe charged-current contact interactions between leptons and quarks that are of the (pseudo)vector (V +/- A) or pseudo-scalar type. We also note that flavor-diagonal (pseudo)vector coefficients do not have observable effects in oscillation experiments. In this we reach novel or different conclusions than prior analyses of non-standard neutrino interactions. On the other hand, reactor experiments offer a unique opportunity to probe tensor and scalar SMEFT operators that are off-diagonal in the lepton-flavor space. We derive constraints on the corresponding SMEFT parameters using the most recent data from the Daya Bay and RENO experiments. (AU) | |
| FAPESP's process: | 16/02636-8 - Probing physics beyond the standard model using sterile neutrino models |
| Grantee: | Zahra Khajeh Tabrizi |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |