Ariga, Akitaka; Ariga, Tomoko; Ereditato, Antonio; Kreslo, Igor; Pistillo, Ciro; Tufanli, Serhan; Vuilleumier, Jean-Luc (2015). Discovery of τ Neutrino Appearance in the CNGS Neutrino Beam with the OPERA Experiment. Physical review letters, 115(12), p. 121802. American Physical Society 10.1103/PhysRevLett.115.121802
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The OPERA experiment was designed to search for νµ → ντ oscillations in appearance mode, i.e. by detecting the τ leptons produced in charged current ντ interactions. The experiment took data from 2008 to 2012 in the CERN Neutrinos to Gran Sasso beam. The observation of the νµ → ντ appearance, achieved with four candidate events in a subsample of the data, was previously reported. In this Letter, a fifth ντ candidate event, found in an enlarged data sample, is described. Together with a further reduction of the expected background, the candidate events detected so far allow us to assess the discovery of νµ → ντ oscillations in appearance mode with a significance larger than 5 σ.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) 08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP) |
UniBE Contributor: |
Ariga, Akitaka, Ariga, Tomoko, Ereditato, Antonio, Kreslo, Igor, Pistillo, Ciro, Tufanli, Serhan, Vuilleumier, Jean-Luc |
Subjects: |
500 Science > 530 Physics |
ISSN: |
0031-9007 |
Publisher: |
American Physical Society |
Language: |
English |
Submitter: |
Ciro Pistillo |
Date Deposited: |
22 Jun 2016 13:56 |
Last Modified: |
05 Dec 2022 14:56 |
Publisher DOI: |
10.1103/PhysRevLett.115.121802 |
BORIS DOI: |
10.7892/boris.82765 |
URI: |
https://boris.unibe.ch/id/eprint/82765 |
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