2018
DOI: 10.1103/physrevd.98.052006
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Measurement of the tau neutrino cross section in atmospheric neutrino oscillations with Super-Kamiokande

Abstract: Using 5326 days of atmospheric neutrino data, a search for atmospheric tau neutrino appearance has been performed in the Super-Kamiokande experiment. Super-Kamiokande measures the tau normalization to be 1.47 AE 0.32 under the assumption of normal neutrino hierarchy, relative to the expectation of unity with neutrino oscillation. The result excludes the hypothesis of no-tau appearance with a significance level of 4.6σ. The inclusive charged-current tau neutrino cross section averaged by the tau neutrino flux a… Show more

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Cited by 56 publications
(61 citation statements)
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“…15 −0.14 ) at the two sigma level), where σ 0 is the SM expectation, after seven years of data taking (3.5 years in neutrino and antineutrino mode, respectively). This can be compared to current results from OPERA, σ = σ 0 (1.2 +0.6 −0.5 ) [23] and Super-Kamiokande, σ = σ 0 (1.47 ± 0.32) [2]. Note that these are not apples-to-apples comparisons.…”
Section: The ν τ Sample At Dunementioning
confidence: 83%
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“…15 −0.14 ) at the two sigma level), where σ 0 is the SM expectation, after seven years of data taking (3.5 years in neutrino and antineutrino mode, respectively). This can be compared to current results from OPERA, σ = σ 0 (1.2 +0.6 −0.5 ) [23] and Super-Kamiokande, σ = σ 0 (1.47 ± 0.32) [2]. Note that these are not apples-to-apples comparisons.…”
Section: The ν τ Sample At Dunementioning
confidence: 83%
“…When it comes to both confirming the three-massive-neutrinos paradigm and determining the oscillation parameters, all current statistical power comes from studies of ν µ and ν e (plus antineutrinos) disappearance and ν µ → ν e (plus antineutrinos) appearance. While there is definitive evidence for ν µ → ν τ appearance from both atmospheric [1][2][3] and beam [4] neutrino experiments, the quantitative impact of the current ν τ appearance data is, at best, sub-dominant. * Among the goals of the next-generation long-baseline neutrino experiments -the Long-Baseline Neutrino facility to the Deep Underground Neutrino Experiment (LBNF-DUNE) in the United States and the Tokai to Hyper-Kamiokande (T2HK) experiment in Japan -are the precision measurements of neutrino oscillation parameters, exploring CP-invariance violation in the neutrino sector, and, perhaps most important, testing the validity of the three-massive-neutrinos paradigm and looking for more new physics in the neutrino sector.…”
Section: Introductionmentioning
confidence: 99%
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“…Measurements of neutrino cross sections have been performed from sub-GeV up to a few PeV energies [52]. This includes a multitude of results using human-made neutrinos in accelerator [53,54] and reactor [55,56] experiments, as well as natural sources such as solar [57], atmospheric [58], and astrophysical neutrinos [59,60]; for recent reviews see [61,62]. In the future, measurements of high-energy neutrinos from collider experiments will be available in the TeV range [63,64].…”
Section: Lepton Behavior At Extremely-high-energiesmentioning
confidence: 99%
“…So far the tau neutrino interaction cross section was only measured in the DONuT [7], OPERA [8] and SK [23] experiments though under rather different conditions. DONuT was the first experiment which has directly registered 9 events of the ν τ CC interactions in the accelerator-based neutrino beam and extracted the value of the cross section under certain assumptions on the tau neutrinos flux.…”
Section: Introductionmentioning
confidence: 99%