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Title: Nonstandard neutrino interactions at DUNE, T2HK and T2HKK

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [1];  [2]
  1. Univ. of Hawaii-Manoa, Honolulu, HI (United States). Dept. of Physics and Astronomy
  2. Iowa State Univ., Ames, IA (United States). Dept. of Physics and Astronomy

Here, we study the matter effect caused by nonstandard neutrino interactions (NSI) in the next generation long-baseline neutrino experiments, DUNE, T2HK and T2HKK. If multiple NSI parameters are nonzero, the potential of these experiments to detect CP violation, determine the mass hierarchy and constrain NSI is severely impaired by degeneracies between the NSI parameters and by the generalized mass hierarchy degeneracy. In particular, a cancellation between leading order terms in the appearance channels when ϵ= cot θ 23ϵ, strongly affects the sensitivities to these two NSI parameters at T2HK and T2HKK. We also study the dependence of the sensitivities on the true CP phase and the true mass hierarchy, and find that overall DUNE has the best sensitivity to the magnitude of the NSI parameters, while T2HKK has the best sensitivity to CP violation whether or not there are NSI. Furthermore, for T2HKK a smaller off-axis angle for the Korean detector is better overall. We find that due to the structure of the leading order terms in the appearance channel probabilities, the NSI sensitivities in a given experiment are similar for both mass hierarchies, modulo the phase change δ→δ + 180°.

Research Organization:
Iowa State Univ., Ames, IA (United States); Univ. of Hawaii, Honolulu, HI (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
SC0010504
OSTI ID:
1360779
Alternate ID(s):
OSTI ID: 1598581
Journal Information:
Journal of High Energy Physics (Online), Vol. 2017, Issue 1; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 53 works
Citation information provided by
Web of Science

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Cited By (18)

Probing non-standard neutrino interactions with supernova neutrinos at Hyper-K journal January 2020
Signatures of a light sterile neutrino in T2HK journal April 2018
Extricating New Physics Scenarios at DUNE with Higher Energy Beams journal January 2019
Matter effects at the T2HK and T2HKK experiments journal October 2017
Measuring the sterile neutrino CP phase at DUNE and T2HK journal April 2018
Long-Baseline Oscillation Experiments as a Tool to Probe High Energy Flavor Symmetry Models journal July 2018
Neutrino Oscillations and Non-standard Interactions journal February 2018
Study of non-standard charged-current interactions at the MOMENT experiment conference June 2018
Can we probe intrinsic CP/T violation and non-unitarity at long baseline accelerator experiments? text January 2017
Effect of systematics in the T2HK, T2HKK, and DUNE experiments text January 2017
A COHERENT Search Strategy for Beyond Standard Model Neutrino Interactions text January 2017
Matter effects at the T2HK and T2HKK experiments text January 2017
Neutrino oscillations and Non-Standard Interactions preprint January 2017
Measuring the Sterile Neutrino CP Phase at DUNE and T2HK text January 2017
Matter Density Profile Shape Effects at DUNE text January 2018
Exploring NSI degeneracies in long-baseline experiments text January 2018
Probing nonstandard lepton number violating interactions in neutrino oscillations text January 2019
Confronting Tri-direct CP-symmetry models to neutrino oscillation experiments text January 2019

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