New constraints on muon-neutrino to electron-neutrino transitions in MINOS
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
---|---|
Data(s) |
18/04/2012
18/04/2012
2010
|
Resumo |
This paper reports results from a search for nu(mu) -> nu(e) transitions by the MINOS experiment based on a 7 x 10(20) protons-on-target exposure. Our observation of 54 candidate nu(e) events in the far detector with a background of 49.1 +/- 7.0(stat) +/- 2.7(syst) events predicted by the measurements in the near detector requires 2sin(2)(2 theta(13))sin(2)theta(23) < 0.12(0.20) at the 90% C.L. for the normal (inverted) mass hierarchy at delta(CP) = 0. The experiment sets the tightest limits to date on the value of theta(13) for nearly all values of delta(CP) for the normal neutrino mass hierarchy and maximal sin(2)(2 theta(23)). U.S. DOE U.K. STFC U.S. NSF National Science Foundation State and University of Minnesota University of Athens, Greece Brazil's FAPESP CNPq Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) |
Identificador |
PHYSICAL REVIEW D, v.82, n.5, 2010 1550-7998 http://producao.usp.br/handle/BDPI/16000 10.1103/PhysRevD.82.051102 |
Idioma(s) |
eng |
Publicador |
AMER PHYSICAL SOC |
Relação |
Physical Review D |
Direitos |
restrictedAccess Copyright AMER PHYSICAL SOC |
Palavras-Chave | #GLOBAL ANALYSIS #LEPTON CHARGE #OSCILLATIONS #DETECTOR #Astronomy & Astrophysics #Physics, Particles & Fields |
Tipo |
article original article publishedVersion |