pith. machine review for the scientific record. sign in

arxiv: 1106.2822 · v2 · submitted 2011-06-14 · ✦ hep-ex

Recognition: unknown

Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam

T2K Collaboration: K.Abe (49) , N.Abgrall (16) , Y.Ajima (18) , H.Aihara (48) , J.B.Albert (13) , C.Andreopoulos (47) , B.Andrieu (37) , S.Aoki (27)
show 476 more authors
O.Araoka (18) J.Argyriades (16) A.Ariga (3) T.Ariga (3) S.Assylbekov (11) D.Autiero (32) A.Badertscher (15) M.Barbi (40) G.J.Barker (56) G.Barr (36) M.Bass (11) F.Bay (3) S.Bentham (29) V.Berardi (22) B.E.Berger (11) I.Bertram (29) M.Besnier (14) J.Beucher (8) D.Beznosko (34) S.Bhadra (59) F.d.M.Blaszczyk (8) A.Blondel (16) C.Bojechko (53) J.Bouchez (8 deceased) S.B.Boyd (56) A.Bravar (16) C.Bronner (14) D.G.Brook-Roberge (5) N.Buchanan (11) H.Budd (41) D.Calvet (8) S.L.Cartwright (44) A.Carver (56) R.Castillo (19) M.G.Catanesi (22) A.Cazes (32) A.Cervera (20) C.Chavez (30) S.Choi (43) G.Christodoulou (30) J.Coleman (30) W.Coleman (31) G.Collazuol (24) K.Connolly (57) A.Curioni (15) A.Dabrowska (17) I.Danko (38) R.Das (11) G.S.Davies (29) S.Davis (57) M.Day (41) G.DeRosa (23) J.P.A.M.de Andre (14) P.dePerio (51) A.Delbart (8) C.Densham (47) F.DiLodovico (39) S.DiLuise (15) P.Dinh Tran (14) J.Dobson (21) U.Dore (25) O.Drapier (14) F.Dufour (16) J.Dumarchez (37) S.Dytman (38) M.Dziewiecki (55) M.Dziomba (57) S.Emery (8) A.Ereditato (3) L.Escudero (20) L.S.Esposito (15) M.Fechner (13 8) A.Ferrero (16) A.J.Finch (29) E.Frank (3) Y.Fujii (18) Y.Fukuda (33) V.Galymov (59) F.C.Gannaway (39) A.Gaudin (53) A.Gendotti (15) M.George (39) S.Giffin (40) C.Giganti (19) K.Gilje (34) T.Golan (58) M.Goldhaber (6 J.J.Gomez-Cadenas (20) M.Gonin (14) N.Grant (29) A.Grant (46) P.Gumplinger (52) P.Guzowski (21) A.Haesler (16) M.D.Haigh (36) K.Hamano (52) C.Hansen (20) D.Hansen (38) T.Hara (27) P.F.Harrison (56) B.Hartfiel (31) M.Hartz (59 51) T.Haruyama (18) T.Hasegawa (18) N.C.Hastings (40) S.Hastings (5) A.Hatzikoutelis (29) K.Hayashi (18) Y.Hayato (49) C.Hearty (5) R.L.Helmer (52) R.Henderson (52) N.Higashi (18) J.Hignight (34) E.Hirose (18) J.Holeczek (45) S.Horikawa (15) A.Hyndman (39) A.K.Ichikawa (28) K.Ieki (28) M.Ieva (19) M.Iida (18) M.Ikeda (28) J.Ilic (47) J.Imber (34) T.Ishida (18) C.Ishihara (50) T.Ishii (18) S.J.Ives (21) M.Iwasaki (48) K.Iyogi (49) A.Izmaylov (26) B.Jamieson (5) R.A.Johnson (10) K.K.Joo (9) G.V.Jover-Manas (19) C.K.Jung (34) H.Kaji (50) T.Kajita (50) H.Kakuno (48) J.Kameda (49) K.Kaneyuki (50 D.Karlen (53 52) K.Kasami (18) I.Kato (52) E.Kearns (4) M.Khabibullin (26) F.Khanam (11) A.Khotjantsev (26) D.Kielczewska (54) T.Kikawa (28) J.Kim (5) J.Y.Kim (9) S.B.Kim (43) N.Kimura (18) B.Kirby (5) J.Kisiel (45) P.Kitching (1) T.Kobayashi (18) G.Kogan (21) S.Koike (18) A.Konaka (52) L.L.Kormos (29) A.Korzenev (16) K.Koseki (18) Y.Koshio (49) Y.Kouzuma (49) K.Kowalik (2) V.Kravtsov (11) I.Kreslo (3) W.Kropp (7) H.Kubo (28) Y.Kudenko (26) N.Kulkarni (31) R.Kurjata (55) T.Kutter (31) J.Lagoda (2) K.Laihem (42) M.Laveder (24) K.P.Lee (50) P.T.Le (34) J.M.Levy (37) C.Licciardi (40) I.T.Lim (9) T.Lindner (5) R.P.Litchfield (56 28) M.Litos (4) A.Longhin (8) G.D.Lopez (34) P.F.Loverre (25) L.Ludovici (25) T.Lux (19) M.Macaire (8) K.Mahn (52) Y.Makida (18) M.Malek (21) S.Manly (41) A.Marchionni (15) A.D.Marino (10) J.Marteau (32) J.F.Martin (51) T.Maruyama (18) T.Maryon (29) J.Marzec (55) P.Masliah (21) E.L.Mathie (40) C.Matsumura (35) K.Matsuoka (28) V.Matveev (26) K.Mavrokoridis (30) E.Mazzucato (8) N.McCauley (30) K.S.McFarland (41) C.McGrew (34) T.McLachlan (50) M.Messina (3) W.Metcalf (31) C.Metelko (47) M.Mezzetto (24) P.Mijakowski (2) C.A.Miller (52) A.Minamino (28) O.Mineev (26) S.Mine (7) A.D.Missert (10) G.Mituka (50) M.Miura (49) K.Mizouchi (52) L.Monfregola (20) F.Moreau (14) B.Morgan (56) S.Moriyama (49) A.Muir (46) A.Murakami (28) M.Murdoch (30) S.Murphy (16) J.Myslik (53) T.Nakadaira (18) M.Nakahata (49) T.Nakai (35) K.Nakajima (35) T.Nakamoto (18) K.Nakamura (18) S.Nakayama (49) T.Nakaya (28) D.Naples (38) M.L.Navin (44) B.Nelson (34) T.C.Nicholls (47) K.Nishikawa (18) H.Nishino (50) J.A.Nowak (31) M. Noy (21) Y.Obayashi (49) T.Ogitsu (18) H.Ohhata (18) T.Okamura (18) K.Okumura (50) T.Okusawa (35) S.M.Oser (5) M.Otani (28) R.A.Owen (39) Y.Oyama (18) T.Ozaki (35) M.Y.Pac (12) V.Palladino (23) V.Paolone (38) P.Paul (34) D.Payne (30) G.F.Pearce (47) J.D.Perkin (44) V.Pettinacci (15) F.Pierre (8 E.Poplawska (39) B.Popov (37) M.Posiadala (54) J.-M.Poutissou (52) R.Poutissou (52) P.Przewlocki (2) W. Qian (47) J.L.Raaf (4) E.Radicioni (22) P.N.Ratoff (29) T.M.Raufer (47) M.Ravonel (16) M.Raymond (21) F.Retiere (52) A.Robert (37) P.A.Rodrigues (41) E.Rondio (2) J.M.Roney (53) B.Rossi (3) S.Roth (42) A.Rubbia (15) D.Ruterbories (11) S.Sabouri (5) R.Sacco (39) K.Sakashita (18) F.Sanchez (19) A.Sarrat (8) K.Sasaki (18) K.Scholberg (13) J.Schwehr (11) M.Scott (21) D.I.Scully (56) Y.Seiya (35) T.Sekiguchi (18) H.Sekiya (49) M.Shibata (18) Y.Shimizu (50) M.Shiozawa (49) S.Short (21) M. Syiad (47) R.J.Smith (36) M.Smy (7) J.T.Sobczyk (58) H.Sobel (7) M.Sorel (20) A.Stahl (42) P.Stamoulis (20) J.Steinmann (42) B.Still (39) J.Stone (4) C.Strabel (15) L.R.Sulak (4) R.Sulej (2) P. Sutcliffe (30) A.Suzuki (27) K.Suzuki (28) S.Suzuki (18) S.Y.Suzuki (18) Y.Suzuki (18) Y.Suzuki (49) T.Szeglowski (45) M.Szeptycka (2) R.Tacik (40 M.Tada (18) S.Takahashi (28) A.Takeda (49) Y.Takenaga (49) Y.Takeuchi (27) K.Tanaka (18) H.A.Tanaka (5) M.Tanaka (18) M.M.Tanaka (18) N.Tanimoto (50) K.Tashiro (35) I.Taylor (34) A.Terashima (18) D.Terhorst (42) R.Terri (39) L.F.Thompson (44) A.Thorley (30) W.Toki (11) T.Tomaru (18) Y.Totsuka (18 C.Touramanis (30) T.Tsukamoto (18) M.Tzanov (31 10) Y.Uchida (21) K.Ueno (49) A.Vacheret (21) M.Vagins (7) G.Vasseur (8) T.Wachala (17) J.J.Walding (21) A.V.Waldron (36) C.W.Walter (13) P.J.Wanderer (6) J.Wang (48) M.A.Ward (44) G.P.Ward (44) D.Wark (47 21) M.O.Wascko (21) A.Weber (36 47) R.Wendell (13) N.West (36) L.H.Whitehead (56) G.Wikstrom (16) R.J.Wilkes (57) M.J.Wilking (52) J.R.Wilson (39) R.J.Wilson (11) T.Wongjirad (13) S.Yamada (49) Y.Yamada (18) A.Yamamoto (18) K.Yamamoto (35) Y.Yamanoi (18) H.Yamaoka (18) C.Yanagisawa (34) T.Yano (27) S.Yen (52) N.Yershov (26) M.Yokoyama (48) A.Zalewska (17) J.Zalipska (5) L.Zambelli (37) K.Zaremba (55) M.Ziembicki (55) E.D.Zimmerman (10) M.Zito (8) J.Zmuda (58) ((1) University of Alberta (2) The Andrzej Soltan Institute for Nuclear Studies (3) University of Bern (4) Boston University (5) University of British Columbia (6) Brookhaven National Laboratory (7) University of California (8) IRFU CEA Saclay (9) Chonnam National University (10) University of Colorado at Boulder (11) Colorado State University (12) Dongshin University (13) Duke University (14) Ecole Polytechnique IN2P3-CNRS (15) ETH Zurich (16) University of Geneva (17) H. Niewodniczanski Institute of Nuclear Physics PAN (18) High Energy Accelerator Research Organization (KEK) (19) Institut de Fisica d'Altes Energies (IFAE) (20) IFIC (CSIC University of Valencia) (21) Imperial College London (22) INFN Sezione di Bari Universita` e Politecnico di Bari (23) INFN Sezione di Napoli Universita` di Napoli (24) INFN Sezione di Padova Universit`a di Padova (25) INFN Sezione di Roma Universit`a di Roma "La Sapienza" (26) Institute for Nuclear Research of the Russian Academy of Sciences (27) Kobe University (28) Kyoto University (29) Lancaster University (30) University of Liverpool (31) Louisiana State University (32) Universite de Lyon (33) Miyagi University of Education (34) State University of New York at Stony Brook (35) Osaka City University Department of Physics (36) Oxford University (37) UPMC Universite Paris Diderot (LPNHE) (38) University of Pittsburgh (39) Queen Mary University of London (40) University of Regina (41) University of Rochester (42) RWTH Aachen University (43) Seoul National University (44) University of Sheffield (45) University of Silesia (46) STFC Daresbury Laboratory (47) STFC Rutherford Appleton Laboratory (48) University of Tokyo (49) University of Tokyo (Institute for Cosmic Ray Research) (50) University of Tokyo (Research Center for Cosmic Neutrinos) (51) University of Toronto (52) TRIUMF (53) University of Victoria (54) University of Warsaw (55) Warsaw University of Technology (56) University of Warwick (57) University of Washington (58) Wroclaw University (59) York University)
Authors on Pith no claims yet
classification ✦ hep-ex
keywords eventsneutrinothetatimes10appearancedatadeltaaccelerator-produced
0
0 comments X
read the original abstract

The T2K experiment observes indications of $\nu_\mu\rightarrow \nu_e$ appearance in data accumulated with $1.43\times10^{20}$ protons on target. Six events pass all selection criteria at the far detector. In a three-flavor neutrino oscillation scenario with $|\Delta m_{23}^2|=2.4\times10^{-3}$ eV$^2$, $\sin^2 2\theta_{23}=1$ and $\sin^2 2\theta_{13}=0$, the expected number of such events is 1.5$\pm$0.3(syst.). Under this hypothesis, the probability to observe six or more candidate events is 7$\times10^{-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 $\delta_{\rm CP}=0$ and a normal (inverted) hierarchy.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.