Measurement of the Neutrino Mass Splitting and Flavor Mixing by MINOS
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
18/04/2012
18/04/2012
2011
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Resumo |
Measurements of neutrino oscillations using the disappearance of muon neutrinos from the Fermilab NuMI neutrino beam as observed by the two MINOS detectors are reported. New analysis methods have been applied to an enlarged data sample from an exposure of 7.25 x 10(20) protons on target. A fit to neutrino oscillations yields values of vertical bar Delta m(2)vertical bar = (2.32(-0.08)(+0.12) x 10(-3) eV(2) for the atmospheric mass splitting and sin(2)(2 theta) > 0.90 (90% C.L.) for the mixing angle. Pure neutrino decay and quantum decoherence hypotheses are excluded at 7 and 9 standard deviations, respectively. U.S. DOE UK STFC U.S. NSF National Science Foundation State and University of Minnesota University of Athens, Greece Brazil FAPESP Brazil CNPq Brazil CAPES |
Identificador |
PHYSICAL REVIEW LETTERS, v.106, n.18, 2011 0031-9007 http://producao.usp.br/handle/BDPI/16052 10.1103/PhysRevLett.106.181801 |
Idioma(s) |
eng |
Publicador |
AMER PHYSICAL SOC |
Relação |
Physical Review Letters |
Direitos |
restrictedAccess Copyright AMER PHYSICAL SOC |
Palavras-Chave | #LEPTON CHARGE #Physics, Multidisciplinary |
Tipo |
article original article publishedVersion |