Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/261
Type: Artigo de periódico
Title: First Direct Observation of Muon Antineutrino Disappearance
Author: ADAMSON, P.
ANDREOPOULOS, C.
AUTY, D. J.
AYRES, D. S.
BACKHOUSE, C.
BARR, G.
BISHAI, M.
BLAKE, A.
BOCK, G. J.
BOEHNLEIN, D. J.
BOGERT, D.
CAVANAUGH, S.
CHERDACK, D.
CHILDRESS, S.
CHOUDHARY, B. C.
COELHO, J. A. B.
COLEMAN, S. J.
CORWIN, L.
CRONIN-HENNESSY, D.
DANKO, I. Z.
JONG, J. K. de
DEVENISH, N. E.
DIWAN, M. V.
DORMAN, M.
ESCOBAR, C. O.
EVANS, J. J.
FALK, E.
FELDMAN, G. J.
FROHNE, M. V.
GALLAGHER, H. R.
GOMES, R. A.
GOODMAN, M. C.
GOUFFON, P.
GRAF, N.
GRAN, R.
GRANT, N.
GRZELAK, K.
HABIG, A.
HARRIS, D.
HARTNELL, J.
HATCHER, R.
HIMMEL, A.
HOLIN, A.
HOWCROFT, C.
HUANG, X.
HYLEN, J.
ILIC, J.
IRWIN, G. M.
ISVAN, Z.
JAFFE, D. E.
JAMES, C.
JENSEN, D.
KAFKA, T.
KASAHARA, S. M. S.
KOIZUMI, G.
KOPP, S.
KORDOSKY, M.
KREYMER, A.
LANG, K.
LEFEUVRE, G.
LING, J.
LITCHFIELD, P. J.
LOIACONO, L.
LUCAS, P.
MANN, W. A.
MARSHAK, M. L.
MAYER, N.
MCGOWAN, A. M.
MEHDIYEV, R.
MEIER, J. R.
MESSIER, M. D.
MILLER, W. H.
MISHRA, S. R.
MITCHELL, J.
MOORE, C. D.
MORFIN, J.
MUALEM, L.
MUFSON, S.
MUSSER, J.
NAPLES, D.
NELSON, J. K.
NEWMAN, H. B.
NICHOL, R. J.
NICHOLLS, T. C.
NOWAK, J. A.
OCHOA-RICOUX, J. P.
OLIVER, W. P.
ORCHANIAN, M.
OSPANOV, R.
PALEY, J.
PATTERSON, R. B.
PAWLOSKI, G.
PEARCE, G. F.
PETYT, D. A.
PHAN-BUDD, S.
PLUNKETT, R. K.
QIU, X.
RATCHFORD, J.
RAUFER, T. M.
REBEL, B.
RODRIGUES, P. A.
ROSENFELD, C.
RUBIN, H. A.
SANCHEZ, M. C.
SCHNEPS, J.
SCHREINER, P.
SHANAHAN, P.
SOUSA, A.
STAMOULIS, P.
STRAIT, M.
TAGG, N.
TALAGA, R. L.
TETTEH-LARTEY, E.
THOMAS, J.
THOMSON, M. A.
TINTI, G.
TONER, R.
TZANAKOS, G.
URHEIM, J.
VAHLE, P.
VIREN, B.
WEBER, A.
WEBB, R. C.
WHITE, C.
WHITEHEAD, L.
WOJCICKI, S. G.
YANG, T.
ZWASKA, R.
Abstract: This Letter reports the first direct observation of muon antineutrino disappearance. The MINOS experiment has taken data with an accelerator beam optimized for (nu) over bar (mu) production, accumulating an exposure of 1.71 x 10(20) protons on target. In the Far Detector, 97 charged current (nu) over bar (mu) events are observed. The no-oscillation hypothesis predicts 156 events and is excluded at 6.3 sigma. The best fit to oscillation yields vertical bar Delta(m) over bar (2)vertical bar = [3.36(-0.40)(+0.46)(stat) +/- 0.06(sys)] x 10(-3) eV(2), sin(2)(2 (theta) over bar) = 0.86(-0.12)(+0.11)(stat) +/- 0.01(syst). The MINOS nu(mu) and (nu) over bar (mu) measurements are consistent at the 2.0% confidence level, assuming identical underlying oscillation parameters.
Country: Estados Unidos
Editor: AMER PHYSICAL SOC
Citation: PHYSICAL REVIEW LETTERS, v.107, n.1, 2011
Rights: fechado
Identifier DOI: 10.1103/PhysRevLett.107.021801
Address: http://apps.isiknowledge.com/InboundService.do?Func=Frame&product=WOS&action=retrieve&SrcApp=EndNote&UT=000292392400007&Init=Yes&SrcAuth=ResearchSoft&mode=FullRecord
http://dx.doi.org/10.1103/PhysRevLett.107.021801
Date Issue: 2011
Appears in Collections:IFGW - Artigos e Materiais de Revistas Científicas

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