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Nonstandard interaction effects on neutrino parameters at medium-baseline reactor antineutrino experiments
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Theoretical Particle Physics.ORCID iD: 0000-0002-3525-8349
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Theoretical Particle Physics.
2014 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 728, 148-155 p.Article in journal (Refereed) 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.

Place, publisher, year, edition, pages
2014. Vol. 728, 148-155 p.
Keyword [en]
Oscillation Experiments, Experiment-Simulator, Massless Neutrinos, Matter, Masses
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-143453DOI: 10.1016/j.physletb.2013.11.052ISI: 000330556000026ScopusID: 2-s2.0-84903689960OAI: diva2:706969
Swedish Research Council

QC 20140324

Available from: 2014-03-24 Created: 2014-03-21 Last updated: 2014-03-24Bibliographically approved

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Ohlsson, TommyZhou, Shun
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