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N. Agafonova
Russian Academy of Sciences
Neutrino oscillationParticle physicsPhysicsNeutrinoMuon
53Publications
17H-index
933Citations
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Publications 57
Newest
#1N. AgafonovaH-Index: 17
#2A. AlexandrovH-Index: 6
Last. C. S. YoonH-Index: 22
view all 127 authors...
An event topology with two secondary vertices compatible with the decay of short-lived particles was found in the analysis of neutrino interactions in the Opera target. The observed topology is compatible with tau neutrino charged current (CC) interactions with charm production and neutrino neutral current (NC) interactions with c\overline{c}pair production. However, other processes can mimic this topology. A dedicated analysis was implemented to identify the underlying process. A Monte Carlo...
#1N. Agafonova (RAS: Russian Academy of Sciences)H-Index: 17
#2Andrey AlexandrovH-Index: 6
Last. C. S. Yoon (Gyeongsang National University)H-Index: 22
view all 128 authors...
The OPERA experiment discovered muon neutrino into tau neutrino oscillations in appearance mode, detecting tau leptons by means of nuclear emulsion films. The apparatus was also endowed with electronic detectors with tracking capability, such as scintillator strips and resistive plate chambers. Because of its location, in the underground Gran Sasso laboratory, under 3800 m.w.e., the OPERA detector has also been used as an observatory for TeV muons produced by cosmic rays in the atmosphere. In th...
Source
#1N. AgafonovaH-Index: 17
#2R. BrugneraH-Index: 35
Last. Akitaka ArigaH-Index: 32
view all 126 authors...
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...
Source
#2N. AgafonovaH-Index: 17
#3A. AlexandrovH-Index: 6
Last. C. S. YoonH-Index: 22
view all 126 authors...
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...
1 Citations
#1N. AgafonovaH-Index: 17
#2A. AlexandrovH-Index: 6
Last. C. S. Yoon (Gyeongsang National University)H-Index: 22
view all 135 authors...
OPERA is a long-baseline experiment designed to search for\nu_{\mu}\to\nu_{\tau}oscillations in appearance mode. It was based at theINFN Gran Sasso laboratory (LNGS) and took data from 2008 to 2012 with the CNGSneutrino beam from CERN. After the discovery of \nu_\tauappearance in 2015,with 5.1\sigmasignificance, the criteria to select \nu_\taucandidateshave been extended and a multivariate approach has been used for eventsidentification. In this way the statistical uncertainty in the...
Source
#1N. AgafonovaH-Index: 17
#2A. AlexandrovH-Index: 6
Last. T. M. RoganovaH-Index: 20
view all 100 authors...
OPERA is a long-baseline experiment designed to search for \nu_{\mu}\to\nu_{\tau}oscillations in appearance mode. It was based at the INFN Gran Sasso laboratory (LNGS) and took data from 2008 to 2012 with the CNGS neutrino beam from CERN. After the discovery of \nu_\tauappearance in 2015, with 5.1\sigmasignificance, the criteria to select \nu_\taucandidates have been extended and a multivariate approach has been used for events identification. In this way the statistical uncertainty ...
#1N. AgafonovaH-Index: 17
#2A. B. AleksandrovH-Index: 13
Last. C. S. Yoon (Gyeongsang National University)H-Index: 22
view all 131 authors...
Source
#1N. Agafonova (RAS: Russian Academy of Sciences)H-Index: 17
#2A. B. AleksandrovH-Index: 13
Last. S. Vasina (JINR: Joint Institute for Nuclear Research)H-Index: 3
view all 56 authors...
Direct Dark Matter searches are nowadays one of the most fervid research topics with many experimental efforts devoted to the search for nuclear recoils induced by the scattering of Weakly Interactive Massive Particles (WIMPs). Detectors able to reconstruct the direction of the nucleus recoiling against the scattering WIMP are opening a new frontier to possibly extend Dark Matter searches beyond the neutrino background. Exploiting directionality would also prove the galactic origin of Dark Matte...
5 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. AgafonovaH-Index: 17
#2R. BrugneraH-Index: 35
Last. Akitaka ArigaH-Index: 32
view all 136 authors...
16 CitationsSource
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