Final results on neutrino oscillation parameters from the OPERA experiment in the CNGS beam

Published on Sep 6, 2019in Physical Review D4.368
· DOI :10.1103/physrevd.100.051301
N. Agafonova17
Estimated H-index: 17
R. Brugnera35
Estimated H-index: 35
+ 123 AuthorsAkitaka Ariga32
Estimated H-index: 32
The OPERA experiment has conclusively observed the appearance of tau neutrinos in the muon neutrino CNGS beam. Exploiting the OPERA detector capabilities, it was possible to isolate high purity samples of \nu_{e} \nu_{\mu}and \nu_{\tau}charged current weak neutrino interactions, as well as neutral current weak interactions. In this Letter, the full dataset is used for the first time to test the three-flavor neutrino oscillation model and to derive constraints on the existence of a light sterile neutrino within the framework of the 3+1neutrino model. For the first time, tau and electron neutrino appearance channels are jointly used to test the sterile neutrino hypothesis. A significant fraction of the sterile neutrino parameter space allowed by LSND and MiniBooNE experiments is excluded at 90% C.L. In particular, the best-fit values obtained by MiniBooNE combining neutrino and antineutrino data are excluded at 3.3 \sigmasignificance.
  • References (31)
  • Citations (0)
📖 Papers frequently viewed together
1 Citations
16 Citations
78% of Scinapse members use related papers. After signing in, all features are FREE.
#1P. AdamsonH-Index: 32
#2I. AnghelH-Index: 17
Last. N. PoonthottathilH-Index: 8
view all 118 authors...
A search for mixing between active neutrinos and light sterile neutrinos has been performed by looking for muon neutrino disappearance in two detectors at baselines of 1.04 and 735 km, using a combined MINOS and MINOS+ exposure of 16.36 × 10 20 protons on target. A simultaneous fit to the charged-current muon neutrino and neutral-current neutrino energy spectra in the two detectors yields no evidence for sterile neutrino mixing using a 3 + 1 model. The most stringent limit to date is set on the ...
40 CitationsSource
#2B. C. BrownH-Index: 33
Last. E. D. ZimmermanH-Index: 47
view all 47 authors...
The MiniBooNE experiment at Fermilab reports results from an analysis of \nu_eappearance data from 12.84 \times 10^{20}protons on target in neutrino mode, an increase of approximately a factor of two over previously reported results. A \nu_echarged-current quasielastic event excess of 381.2 \pm 85.2events (4.5 \sigma is observed in the energy range 200
91 CitationsSource
#1Mona Dentler (University of Mainz)H-Index: 3
Last. Thomas SchwetzH-Index: 51
view all 7 authors...
We discuss the possibility to explain the anomalies in short-baseline neutrino oscillation experiments in terms of sterile neutrinos. We work in a 3+1 framework and pay special attention to recent new data from reactor experiments, IceCube and MINOS+. We find that results from the DANSS and NEOS reactor experiments support the sterile neutrino explanation of the reactor anomaly, based on an analysis that relies solely on the relative comparison of measured reactor spectra. Global data from the $...
79 CitationsSource
#1N. Agafonova (RAS: Russian Academy of Sciences)H-Index: 17
#2A. B. AleksandrovH-Index: 13
Last. C. S. Yoon (Gyeongsang National University)H-Index: 22
view all 132 authors...
The OPERA experiment has discovered the tau neutrino appearance in the CNGS muon neutrino beam, in agreement with the 3 neutrino flavour oscillation hypothesis. The OPERA neutrino interaction target, made of Emulsion Cloud Chambers, was particularly efficient in the reconstruction of electromagnetic showers. Moreover, thanks to the very high granularity of the emulsion films, showers induced by electrons can be distinguished from those induced by π^{0}, thus allowing the detection of charged ...
6 CitationsSource
#1N. Agafonova (HSE: National Research University – Higher School of Economics)H-Index: 1
#2R. BrugneraH-Index: 35
Last. Akitaka ArigaH-Index: 32
view all 136 authors...
The OPERA experiment was designed to study ν_{μ}→ν_{τ} oscillations in the appearance mode in the CERN to Gran Sasso Neutrino beam (CNGS). In this Letter, we report the final analysis of the full data sample collected between 2008 and 2012, corresponding to 17.97×10^{19} protons on target. Selection criteria looser than in previous analyses have produced ten ν_{τ} candidate events, thus reducing the statistical uncertainty in the measurement of the oscillation parameters and of ν_{τ} properties....
20 CitationsSource
#1N. AgafonovaH-Index: 17
#2R. BrugneraH-Index: 35
Last. Akitaka ArigaH-Index: 32
view all 136 authors...
16 CitationsSource
#1Masaharu TanabashiH-Index: 22
#2Peter J. RichardsonH-Index: 63
Last. Aneesh V. ManoharH-Index: 55
view all 231 authors...
1,383 CitationsSource
4 CitationsSource
8 CitationsSource
#1P. Adamson (Fermilab)H-Index: 32
#2F. P. An (ECUST: East China University of Science and Technology)H-Index: 16
Last. J. H. ZouH-Index: 19
view all 333 authors...
Searches for a light sterile neutrino have been performed independently by the MINOS and the Daya Bay experiments using the muon (anti)neutrino and electron antineutrino disappearance channels, respectively. In this Letter, results from both experiments are combined with those from the Bugey-3 reactor neutrino experiment to constrain oscillations into light sterile neutrinos. The three experiments are sensitive to complementary regions of parameter space, enabling the combined analysis to probe ...
47 CitationsSource
Cited By0
The three-flavor neutrino oscillation paradigm is well established in particle physics thanks to the crucial contribution of accelerator neutrino beam experiments. In this paper, we review the most important contributions of these experiments to the physics of massive neutrinos after the discovery of θ 13 and future perspectives in such a lively field of research. Special emphasis is given to the technical challenges of high power beams and the oscillation results of T2K, OPERA, ICARUS, and NO ν...