Atmospheric neutrino oscillation analysis with subleading effects in Super-Kamiokande I, II, and III

By Super-Kamiokande Collaboration R. Wendell, C. Ishihara, K. Abe, Y. Hayato, T. Iida, M. Ikeda, K. Iyogi, J. Kameda, K. Kobayashi, Y. Koshio and 108 more. 2010

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We present a search for nonzero {theta}{sub 13} and deviations of sin{sup 2{theta}}{sub 23} from 0.5 in the oscillations of atmospheric neutrino data from Super-Kamiokande I, II, and III. No distortions of the neutrino flux consistent with nonzero {theta}{sub 13} are found and both neutrino mass hierarchy hypotheses are in agreement with the data. The data are best fit at {Delta}m{sup 2}=2.1x10{sup -3} eV{sup 2}, sin{sup 2{theta}}{sub 13}=0.0, and sin{sup 2{theta}}{sub 23}=0.5. In the normal (inverted) hierarchy {theta}{sub 13} and {Delta}m{sup 2} are constrained at the one-dimensional 90% C.L. to sin{sup 2{theta}}{sub 13}<0.04(0.09) and 1.9(1.7)x10{sup -3}<{Delta}m{sup 2}<2.6(2.7)x10{sup -3} eV{sup 2}. The atmospheric mixing angle is within 0.407{<=}sin{sup 2{theta}}{sub 23{<=}}0.583 at 90% C.L.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/1e363cbab150c5ba675bfe1e044ced8d733f0840

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Citations in the corpus

Evidence of $\theta_{13}$>0 from global neutrino data analysis (2011, methodology): “A similar attitude has been adopted in [13], while the authors in [21] have directly taken the official SK likelihood function for the (∆m(2), θ23, θ13) parameters from a 3ν analysis with δm 2 set to zero [14].”
Updated global fit to three neutrino mixing: status of the hints of θ13 > 0 (2010, methodology): “[ 41 ] by Super-Kamiokande seems to exhibit a non-negligible dependence of the preferred m 2 range on 13 (see, e.g., the leftmost panels of gures 7 and 8 in [41]).”
Global Analyses of Neutrino Oscillation Experiments (2015, background): “Left: Constraints in the plane of |Uμ4| and m41 at 99% CL (2 dof) from CDHS [66], atmospheric neutrinos [67], MiniBooNE disappearance [68], MINOS CC and NC data [69,70], and the combination of them.”
Neutrino oscillations (2013, unknown): “In this global analysis the following experimental information is included: the atmospheric neutrino data (Super-Kamiokande [93] phases 1–4), the long baseline accelerator experiments (K2K [42], disappearance and appearance data of MINOS [94], and T2K [90]), the reactor experiments (CHOOZ [95], Palo”
Updated global analysis of neutrino oscillations in the presence of eV-scale sterile neutrinos (2018, methodology): “The new analyses by IceCube, DeepCore, MINOS/MINOS+, and NOνA complement, and significantly extend, the exclusion regions from the short-baseline experiments CDHS [100] and MiniBooNE [101, 102], from Super-Kamiokande data on atmospheric neutrinos [48, 103], and from MINOS [104].”
Updated fit to three neutrino mixing: status of leptonic CP violation (2014, methodology): “We include in our global analysis the results from Super-Kamiokande atmospheric neutrino data from phases SK1–4 [13], adding the 1775 days of phase SK4 to their published results on phases SK1–3 [14].”
Status of light sterile neutrino searches (2019, background): “While the muon sample reaches a purity of 95% for νμ charged current events, the purity of the electron sample is reduced to 89% due to contamination with neutral current events [183].”