Measurement of neutrino oscillation parameters from muon neutrino disappearance with an off-axis beam

Collapse authors list.
Abe, K, Adam, J, Aihara, H, Akiri, T, Andreopoulos, C ORCID: 0000-0003-2020-8215, Aoki, S, Ariga, A, Ariga, T, Assylbekov, S, Autiero, D et al (show 90 more authors) , Barbi, M, Barker, GJ, Barr, G, Bass, M, Batkiewicz, M, Bay, F, Bentham, SW, Berardi, V, Berger, BE, Berkman, S, Bertram, I, Bhadra, S, Blaszczyk, FDM, Blondel, A, Bojechko, C, Bordoni, S, Boyd, SB, Brailsford, D, Bravar, A, Bronner, C, Buchanan, N, Calland, RG, Caravaca Rodríguez, J, Cartwright, SL, Castillo, R, Catanesi, MG, Cervera, A, Cherdack, D, Christodoulou, G, Clifton, A, Coleman, J ORCID: 0000-0003-1319-0889, Coleman, SJ, Collazuol, G, Connolly, K, Cremonesi, L, Curioni, A, Dabrowska, A, Danko, I, Das, R, Davis, S, De Perio, P, De Rosa, G, Dealtry, T, Dennis, SR, Densham, C, Di Lodovico, F, Di Luise, S, Drapier, O, Duboyski, T, Duffy, K, Dufour, F, Dumarchez, J, Dytman, S, Dziewiecki, M, Emery, S, Ereditato, A, Escudero, L, Finch, AJ, Frank, E, Friend, M, Fujii, Y, Fukuda, Y, Furmanski, AP, Galymov, V, Gaudin, A, Giffin, S, Giganti, C, Gilje, K, Golan, T, Gomez-Cadenas, JJ, Gonin, M, Grant, N, Gudin, D, Hadley, DR, Haesler, A, Haigh, MD, Hamilton, P, Hansen, D, Hara, T, Hartz, M, Hasegawa, T, Hastings, NC, Hayato, Y, Hearty, C, Helmer, RL, Hierholzer, M, Hignight, J, Hillairet, A, Himmel, A and Hiraki, T (2013) Measurement of neutrino oscillation parameters from muon neutrino disappearance with an off-axis beam Physical Review Letters, 111 (21). 211803-. ISSN 0031-9007, 1079-7114

	Text 1308.0465v2.pdf - Unspecified Download (252kB)
	Text (licence) repository-policy-2016-03-31.pdf - Unspecified Access to this file is embargoed until Unspecified. Download (77kB)

Abstract

The T2K Collaboration reports a precision measurement of muon neutrino disappearance with an off-axis neutrino beam with a peak energy of 0.6 GeV. Near detector measurements are used to constrain the neutrino flux and cross section parameters. The Super-Kamiokande far detector, which is 295 km downstream of the neutrino production target, collected data corresponding to 3.01 × 10²⁰ protons on target. In the absence of neutrino oscillations, 205 ± 17 (syst) events are expected to be detected while only 58 muon neutrino event candidates are observed. A fit to the neutrino rate and energy spectrum, assuming three neutrino flavors and normal mass hierarchy yields a best-fit mixing angle sin²(Θ<inf>23</inf>) = 0.514 ± 0.082 and mass splitting |Δm²<inf>32</inf>| = 2.44^+0.17<inf>-0.15</inf> × 10^-3 eV²/c⁴. Our result corresponds to the maximal oscillation disappearance probability.

Item Type:	Article
Additional Information:	8 pages, 4 figures, revised version accepted for publication in Physical Review Letters
Uncontrolled Keywords:	T2K Collaboration
Depositing User:	Symplectic Admin
Date Deposited:	08 Apr 2016 14:44
Last Modified:	01 Mar 2026 11:37
DOI:	10.1103/PhysRevLett.111.211803
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3000080
Disclaimer:	The University of Liverpool is not responsible for content contained on other websites from links within repository metadata. Please contact us if you notice anything that appears incorrect or inappropriate.