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First measurement of electron neutrino appearance in NOvA

P. Adamson, +258 more
- 13 Apr 2016 - 
- Vol. 116, Iss: 15, pp 151806-151806
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TLDR
The first search for ν_{μ}→ν_{e} transitions by the NOvA experiment finds 6 events in the Far Detector, compared to a background expectation of 0.99±0.11(syst) events based on the Near Detector measurement.
Abstract
We report results from the first search for ν_{μ}→ν_{e} transitions by the NOvA experiment. In an exposure equivalent to 2.74×10^{20} protons on target in the upgraded NuMI beam at Fermilab, we observe 6 events in the Far Detector, compared to a background expectation of 0.99±0.11(syst) events based on the Near Detector measurement. A secondary analysis observes 11 events with a background of 1.07±0.14(syst). The 3.3σ excess of events observed in the primary analysis disfavors 0.1π<δ_{CP}<0.5π in the inverted mass hierarchy at the 90% C.L.

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Status and future of nuclear matrix elements for neutrinoless double-beta decay: a review.

TL;DR: The nuclear matrix elements that govern the rate of neutrinoless double beta decay must be accurately calculated if experiments are to reach their full potential as mentioned in this paper, which has been a long-studied problem.
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Neutrino masses and mixings: Status of known and unknown 3ν parameters

TL;DR: In this article, the authors present an up-to-date global analysis of neutrino oscillation data, including the latest available results from experiments with atmospheric neutrinos (Super-Kamiokande and IceCube DeepCore), at accelerators (first T2K ν ‾ and NO ν A ν runs in both appearance and disappearance modes), and at short-baseline reactors (Daya Bay and RENO far/near spectral ratios), as well as a reanalysis of older KamLAND data in the light of the “bump
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Current unknowns in the three-neutrino framework

TL;DR: In this paper, an up-to-date global analysis of data coming from neutrino oscillation and non-oscillation experiments, as available in April 2018, within the standard framework including three massive and mixed neutrinos.
Journal ArticleDOI

Status and Future of Nuclear Matrix Elements for Neutrinoless Double-Beta Decay: A Review

TL;DR: Past and recent work on the matrix elements in a wide variety of nuclear models are reviewed and work that will be done in the near future is discussed.
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Lepton Number Violation: Seesaw Models and Their Collider Tests

TL;DR: In this paper, the authors consider a number of representative Seesaw scenarios as phenomenological benchmarks, including the characteristic Type I, II, and III Seeaw mechanisms, their extensions and hybridizations, as well as radiative constructions.
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