Measurement of atmospheric neutrino flux consistent with tau neutrino appearance
A search for the appearance of tau neutrinos from nu(mu) nu(tau) oscillations in the atmospheric neutrinos has been performed using 1489.2 days of atmospheric neutrino data from the Super-Kamiokande-I experiment. A best fit tau neutrino appearance signal of 138+/-48(stat)-32(+15)(syst) events is ob...
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Veröffentlicht in: | Physical review letters 2006-10, Vol.97 (17), p.171801-171801, Article 171801 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | A search for the appearance of tau neutrinos from nu(mu) nu(tau) oscillations in the atmospheric neutrinos has been performed using 1489.2 days of atmospheric neutrino data from the Super-Kamiokande-I experiment. A best fit tau neutrino appearance signal of 138+/-48(stat)-32(+15)(syst) events is obtained with an expectation of 78+/-26(syst). The hypothesis of no tau neutrino appearance is disfavored by 2.4 sigma. |
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ISSN: | 0031-9007 1079-7114 |
DOI: | 10.1103/PhysRevLett.97.171801 |