HET Seminar

"Resolving CP Confusion from Non-Standard Neutrino Interactions"

Presented by Jeff Hyde, Bowdoin

Wednesday, January 15, 2020, 2:30 pm — Small Seminar Room, Bldg. 510

Non-standard neutrino interactions (NSI) can interfere with measurements of neutrino oscillation parameters at long-baseline experiments, in particular making determination of the CP-violating phase δ ambiguous. Measurements at different baselines or energies may be combined to improve this situation, but it can be difficult to see the influence of individual parameters and determine when degeneracies may exist or be broken. I will show how the relationship between underlying parameters, degeneracies and their breaking may be represented in a convenient way in biprobability space. An application of particular interest is the experimental hints suggesting δ∼−π/2 , which could be consistent with nonzero NSI but the absence of CP violation.

Hosted by: Peter Denton

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