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Nonstandard interaction effects on neutrino parameters at medium-baseline reactor antineutrino experiments
KTH, Skolan för teknikvetenskap (SCI), Teoretisk fysik, Teoretisk partikelfysik.ORCID-id: 0000-0002-3525-8349
KTH, Skolan för teknikvetenskap (SCI), Teoretisk fysik, Teoretisk partikelfysik.
2014 (engelsk)Inngår i: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 728, s. 148-155Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Precision measurements of leptonic mixing parameters and the determination of the neutrino mass hierarchy are the primary goals of the forthcoming medium-baseline reactor antineutrino experiments, such as JUNO and RENO-50. In this work, we investigate the impact of nonstandard neutrino interactions (NSIs) on the measurements of {sin(2) theta(12), Delta m(21)(2)} and {sin(2) theta(13), Delta m(31)(2)}. and on the sensitivity to the neutrino mass hierarchy, at the medium-baseline reactor experiments by assuming a typical experimental setup. It turns out that the true mixing parameter sin(2) theta(12) can be excluded at a more than 3 sigma level if the NSI parameter epsilon(e mu), or epsilon(e tau), is as large as 2% in the most optimistic case. However, the discovery reach of NSI effects has been found to be small, and depends crucially on the CP-violating phases. Finally, we show that NSI effects could enhance or reduce the discrimination power of the JUNO and RENO-50 experiments between the normal and inverted neutrino mass hierarchies.

sted, utgiver, år, opplag, sider
2014. Vol. 728, s. 148-155
Emneord [en]
Oscillation Experiments, Experiment-Simulator, Massless Neutrinos, Matter, Masses
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-143453DOI: 10.1016/j.physletb.2013.11.052ISI: 000330556000026Scopus ID: 2-s2.0-84903689960OAI: oai:DiVA.org:kth-143453DiVA, id: diva2:706969
Forskningsfinansiär
Swedish Research Council
Merknad

QC 20140324

Tilgjengelig fra: 2014-03-24 Laget: 2014-03-21 Sist oppdatert: 2017-12-05bibliografisk kontrollert

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