How much does the MSW effect contribute to the reactor antineutrino anomaly?

Journal Article · Fri May 15 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4919507· OSTI ID:22391829

Valdiviesso, G. A. ^[1]

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1. Federal University of Alfenas - Poços de Caldas - MG - Brazil (Brazil)

It has been pointed out that there is a 5.7 ± 2.3 discrepancy between the predicted and the observed reactor antineutrino flux in very short baseline experiments. Several causes for this anomaly have been discussed, including a possible non-standard forth sterile neutrino. In order to quantify how much non-standard this anomaly really is, the standard MSW effect is reviewed. Knowing that reactor antineutrinos are produced in a dense medium (the nuclear fuel) and is usually detected in a less dense one (water, or scintillator), non-adiabatic effects are expected to happen, creating a difference between the creation and detection mixing angles.

• OSTI ID: 22391829
• Journal Information: AIP Conference Proceedings, Vol. 1663, Issue 1; Conference: NuINT12: 8. International Workshop on Neutrino-Nucleus Internactions in the Few-GeV Region, Rio de Janeiro (Brazil), 22-27 Oct 2012; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ELECTRON ANTINEUTRINOS
NEUTRINO DETECTION
NEUTRINO REACTIONS
NUCLEAR FUELS
PARTICLE IDENTIFICATION
PARTICLE PRODUCTION
WATER
WEINBERG ANGLE