Search for nonstandard neutrino interactions with IceCube DeepCore
Name
PhysRevD.97.072009.pdf
Size
543.54 KB
Format
Adobe PDF
Checksum (MD5)
8fb6d4e5ebe6bcd00e0d74a992e51377
Author(s)
Aartsen, M. G.
Ackermann, M.
Adams, J.
Aguilar, J. A.
Ahlers, M.
Ahrens, M.
Al Samarai, I.
Altmann, D.
Andeen, K.
Anderson, T.
Date Issued
April 2018
Journal
Physical Review D
Publisher
American Physical Society
Citation
Aartsen, M. G. et al. "Search for nonstandard neutrino interactions with IceCube DeepCore." Physical Review D 97, 7 (April 2018): 072009
Version
Final published version
Abstract
As atmospheric neutrinos propagate through the Earth, vacuumlike oscillations are modified by Standard Model neutral- and charged-current interactions with electrons. Theories beyond the Standard Model introduce heavy, TeV-scale bosons that can produce nonstandard neutrino interactions. These additional interactions may modify the Standard Model matter effect producing a measurable deviation from the prediction for atmospheric neutrino oscillations. The result described in this paper constrains nonstandard interaction parameters, building upon a previous analysis of atmospheric muon-neutrino disappearance with three years of IceCube DeepCore data. The best fit for the muon to tau flavor changing term is ε[subscript μτ]=-0.0005, with a 90% C.L. allowed range of -0.0067<ε[subscript μτ]<0.0081. This result is more restrictive than recent limits from other experiments for ε_{μτ}. Furthermore, our result is complementary to a recent constraint on ε[subscript μτ] using another publicly available IceCube high-energy event selection. Together, they constitute the world’s best limits on nonstandard interactions in the μ-τ sector.
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevD.97.072009
