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Title: Curtailing the dark side in non-standard neutrino interactions

Journal Article · · Journal of High Energy Physics (Online)
ORCiD logo [1]; ORCiD logo [2];  [3]; ORCiD logo [4]; ORCiD logo [5]
  1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  2. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Univ. of Copenhagen, Copenhagen (Denmark)
  3. Univ. de Barcelona, Barcelona (Spain); Institucio Catalana de Recerca i Estudis Avancats (ICREA), Barcelona (Spain); Stony Brook Univ., Stony Brook, NY (United States)
  4. Univ. of Autonoma de Madrid, Madrid (Spain)
  5. Karlsruher Institut fur Technologie (KIT), Karlsruhe (Germany)

In presence of non-standard neutrino interactions the neutrino flavor evolution equation is affected by a degeneracy which leads to the so-called LMA-Dark solution. It requires a solar mixing angle in the second octant and implies an ambiguity in the neutrino mass ordering. Non-oscillation experiments are required to break this degeneracy. We perform a combined analysis of data from oscillation experiments with the neutrino scattering experiments CHARM and NuTeV. We find that the degeneracy can be lifted if the non-standard neutrino interactions take place with down quarks, but it remains for up quarks. However, CHARM and NuTeV constraints apply only if the new interactions take place through mediators not much lighter than the electroweak scale. For light mediators we consider the possibility to resolve the degeneracy by using data from future coherent neutrino-nucleus scattering experiments. Here we find that, for an experiment using a stopped-pion neutrino source, the LMA-Dark degeneracy will either be resolved, or the presence of new interactions in the neutrino sector will be established with high significance.

Research Organization:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1345608
Report Number(s):
FERMILAB-PUB-17-016-T; YITP-SB-17-4; IFT-UAM-CSIC-17-004; arXiv:1701.04828; 1509503
Journal Information:
Journal of High Energy Physics (Online), Vol. 2017, Issue 4; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 71 works
Citation information provided by
Web of Science

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Cited By (23)

Improved global fit to Non-Standard neutrino Interactions using COHERENT energy and timing data journal February 2020
Future DUNE constraints on EFT journal April 2018
Coherent elastic neutrino-nucleus scattering in multi-ton scale dark matter experiments: classification of vector and scalar interactions new physics signals journal December 2019
How high is the neutrino floor? journal January 2019
Novel Neutrino-Floor and Dark Matter Searches with Deformed Shell Model Calculations journal August 2018
Neutrino Oscillations and Non-standard Interactions journal February 2018
Recent Probes of Standard and Non-standard Neutrino Physics With Nuclei journal November 2019
Neutrino Mass Ordering from Oscillations and Beyond: 2018 Status and Future Prospects journal October 2018
Study of non-standard charged-current interactions at the MOMENT experiment conference June 2018
A COHERENT Search Strategy for Beyond Standard Model Neutrino Interactions text January 2017
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Neutrino non-standard interactions and dark matter searches with multi-ton scale detectors preprint January 2017
Probing neutrino coupling to a light scalar with coherent neutrino scattering text January 2018
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