Indication of electron neutrino appearance from an accelerator-produced off-axis muon neutrino beam

Physics

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Experimental Particle Physics

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E041801
Rights statement: © 2011 American Physical Society
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https://doi.org/10.1103/PhysRevLett.107.041801
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OSCILLATIONS

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Indication of electron neutrino appearance from an accelerator-produced off-axis muon neutrino beam. / Abe, K.; Bentham, S.; Bertram, I. et al.
In: Physical review letters, Vol. 107, No. 4, 041801, 18.07.2011.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Bibtex

@article{c02dd37979514bbba2c1fa264cdd583f,

title = "Indication of electron neutrino appearance from an accelerator-produced off-axis muon neutrino beam",

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.",

keywords = "OSCILLATIONS",

author = "K. Abe and N. Abgrall and Y. Ajima and H. Aihara and Albert, {J. B.} and C. Andreopoulos and B. Andrieu and S. Aoki and O. Araoka and J. Argyriades and A. Ariga and T. Ariga and S. Assylbekov and D. Autiero and A. Badertscher and M. Barbi and Barker, {G. J.} and G. Barr and M. Bass and F. Bay and S. Bentham and V. Berardi and Berger, {B. E.} and I. Bertram and M. Besnier and J. Beucher and D. Beznosko and S. Bhadra and Blaszczyk, {F. D. M. M.} and A. Blondel and C. Bojechko and J. Bouchez and Boyd, {S. B.} and A. Bravar and C. Bronner and Brook-Roberge, {D. G.} and N. Buchanan and H. Budd and D. Calvet and Cartwright, {S. L.} and A. Carver and R. Castillo and Catanesi, {M. G.} and A. Cazes and Alexander Finch and N. Grant and A. Hatzikoutelis and T. Maryon and Jaroslaw Nowak and Laura Kormos and {T2K Collaboration}",

note = "{\textcopyright} 2011 American Physical Society",

year = "2011",

month = jul,

day = "18",

doi = "10.1103/PhysRevLett.107.041801",

language = "English",

volume = "107",

journal = "Physical review letters",

issn = "1079-7114",

publisher = "American Physical Society",

number = "4",

}

RIS

TY - JOUR

T1 - Indication of electron neutrino appearance from an accelerator-produced off-axis muon neutrino beam

AU - Abe, K.

AU - Abgrall, N.

AU - Ajima, Y.

AU - Aihara, H.

AU - Albert, J. B.

AU - Andreopoulos, C.

AU - Andrieu, B.

AU - Aoki, S.

AU - Araoka, O.

AU - Argyriades, J.

AU - Ariga, A.

AU - Ariga, T.

AU - Assylbekov, S.

AU - Autiero, D.

AU - Badertscher, A.

AU - Barbi, M.

AU - Barker, G. J.

AU - Barr, G.

AU - Bass, M.

AU - Bay, F.

AU - Bentham, S.

AU - Berardi, V.

AU - Berger, B. E.

AU - Bertram, I.

AU - Besnier, M.

AU - Beucher, J.

AU - Beznosko, D.

AU - Bhadra, S.

AU - Blaszczyk, F. D. M. M.

AU - Blondel, A.

AU - Bojechko, C.

AU - Bouchez, J.

AU - Boyd, S. B.

AU - Bravar, A.

AU - Bronner, C.

AU - Brook-Roberge, D. G.

AU - Buchanan, N.

AU - Budd, H.

AU - Calvet, D.

AU - Cartwright, S. L.

AU - Carver, A.

AU - Castillo, R.

AU - Catanesi, M. G.

AU - Cazes, A.

AU - Finch, Alexander

AU - Grant, N.

AU - Hatzikoutelis, A.

AU - Maryon, T.

AU - Nowak, Jaroslaw

AU - Kormos, Laura

AU - T2K Collaboration

PY - 2011/7/18

Y1 - 2011/7/18

N2 - 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.

AB - 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.

KW - OSCILLATIONS

UR - http://www.scopus.com/inward/record.url?scp=79961115124&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.107.041801

DO - 10.1103/PhysRevLett.107.041801

M3 - Journal article

VL - 107

JO - Physical review letters

JF - Physical review letters

SN - 1079-7114

IS - 4

M1 - 041801

ER -

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