CP-Violating Neutrino Nonstandard Interactions in Long-Baseline-Accelerator Data

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dc.contributor.authorDenton, Peter B.en
dc.contributor.authorGehrlein, Juliaen
dc.contributor.authorPestes, Rebekahen
dc.contributor.departmentCenter for Neutrino Physicsen
dc.date.accessioned2021-08-03T14:43:44Zen
dc.date.available2021-08-03T14:43:44Zen
dc.date.issued2021-02-04en
dc.description.abstractNeutrino oscillations in matter provide a unique probe of new physics. Leveraging the advent of neutrino appearance data from NOvA and T2K in recent years, we investigate the presence of CP-violating neutrino nonstandard interactions in the oscillation data. We first show how to very simply approximate the expected NSI parameters to resolve differences between two long-baseline appearance experiments analytically. Then, by combining recent NOvA and T2K data, we find a tantalizing hint of CP-violating NSI preferring a new complex phase that is close to maximal: phi(e mu) or phi(e tau) approximate to 3 pi/2 with vertical bar epsilon(e mu vertical bar) or vertical bar epsilon(e tau)vertical bar similar to 0.2. We then compare the results from long-baseline data to constraints from IceCube and COHERENT.en
dc.description.notesWe acknowledge support from the U.S. Department of Energy under Grant Contract No. DE-SC0012704. The work presented here that R. P. did was supported by the U.S. Department of Energy, Office of Science, Office of Workforce Development for Teachers and Scientists, Office of Science Graduate Student Research (SCGSR) program. The SCGSR program is administered by the Oak Ridge Institute for Science and Education (ORISE) for the DOE. ORISE is managed by ORAU under Contract No. DE-SC0014664. All opinions expressed in this Letter are those of the authors and do not necessarily reflect the policies and views of DOE, ORAU, or ORISE.en
dc.description.sponsorshipU.S. Department of EnergyUnited States Department of Energy (DOE) [DE-SC0012704]; U.S. Department of Energy, Office of Science, Office of Workforce Development for Teachers and Scientists, Office of Science Graduate Student Research (SCGSR) programUnited States Department of Energy (DOE); ORAU [DE-SC0014664]en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1103/PhysRevLett.126.051801en
dc.identifier.eissn1079-7114en
dc.identifier.issn0031-9007en
dc.identifier.issue5en
dc.identifier.other51801en
dc.identifier.pmid33605742en
dc.identifier.urihttp://hdl.handle.net/10919/104559en
dc.identifier.volume126en
dc.language.isoenen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleCP-Violating Neutrino Nonstandard Interactions in Long-Baseline-Accelerator Dataen
dc.title.serialPhysical Review Lettersen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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