T2K Collaboration (Including: Boyd, S. B., Barker, Gary John, Harrison, P. F. and Whitehead, Leigh). (2011) Indication of electron neutrino appearance from an accelerator-produced off-axis muon neutrino beam. Physical Review Letters, Vol.107 (No.4). 041801. ISSN 0031-9007

Full text not available from this repository.

Abstract

The T2K experiment observes indications of nu(mu) -> nu(mu) e appearance in data accumulated with 1.43 x 10(20) protons on target. Six events pass all selection criteria at the far detector. In a three-flavor neutrino oscillation scenario with |Delta m(23)(2)| = 2.4 x 10(-3) eV(2), sin(2)2 theta(23) = 1 and sin(2)2 theta(13) = 0, the expected number of such events is 1.5 +/- 0.3(syst). Under this hypothesis, the probability to observe six or more candidate events is 7 x 10(-3), equivalent to 2.5 sigma significance. At 90% C.L., the data are consistent with 0.03(0.04) < sin(2)2 theta(13) < 0.28(0.34) for delta(CP) = 0 and a normal (inverted) hierarchy.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics
Divisions:	Faculty of Science > Physics
Library of Congress Subject Headings (LCSH):	Neutrinos, Neutrino interactions, Neutron beams, Oscillations, Muons, Particle acceleration, Particle accelerators
Journal or Publication Title:	Physical Review Letters
Publisher:	American Physical Society
ISSN:	0031-9007
Date:	18 July 2011
Volume:	Vol.107
Number:	No.4
Page Range:	041801
Identification Number:	10.1103/PhysRevLett.107.041801
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	Japan. Monbushō, Natural Sciences and Engineering Research Council Canada (NSERC), National Research Council of Canada (NRC), Canada Foundation for Innovation (CFI), France. Commissariat à l'énergie atomique (CEA) , Centre national de la recherche scientifique (France) (CNRS), Institut national de physique nucléaire et de physique des particules (IN2P3), Deutsche Forschungsgemeinschaft (DFG), Istituto nazionale di fisica nucleare (INFN) , Poland. Ministerstwo Nauki i Szkolnictwa Wyższego [Ministry of Science and Higher Education] (MNiSW), Rossiĭskai︠a︡ akademii︠a︡ nauk [Russian Academy of Sciences] (RAS), Russia (Federation). Ministerstvo obrazovanii︠a︡ i nauki [Ministry of Education and Science], Korea (South). Kyoyuk Kwahak Kisulbu [Ministry of Education, Science and Technology] (MEST), National Research Foundation of Korea (NRF), Spain. Ministerio de Ciencia e Innovación (MCINN), Spanish National Centre of Particle, Astroparticle and Nuclear Physics (CPAN), Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung [Swiss National Science Foundation] (SNSF), Switzerland. State Secretariat for Education and Research (SER), Science and Technology Facilities Council (Great Britain) (STFC), United States. Dept. of Energy (DOE), Seventh Framework Programme (European Commission) (FP7), European Union (EU) , Nihon Gakujutsu Shinkōkai [Japan Society for the Promotion of Science] (JSPS), Royal Society (Great Britain), National Science Foundation (U.S.), Alfred P. Sloan Foundation
URI:	http://wrap.warwick.ac.uk/id/eprint/38665

Data sourced from Thomson Reuters' Web of Knowledge

Request changes to a record

Actions (login required)

View Item