Measurement of the intrinsic electron neutrino component in the T2K neutrino beam with the ND280 detector
Physical Review D - Particles, Fields, Gravitation and Cosmology
MetadataShow full item record
The T2K experiment has reported the first observation of the appearance of electron neutrinos in a muon neutrino beam. The main and irreducible background to the appearance signal comes from the presence in the neutrino beam of a small intrinsic component of electron neutrinos originating from muon and kaon decays. In T2K, this component is expected to represent 1.2% of the total neutrino flux. A measurement of this component using the near detector (ND280), located 280 m from the target, is presented. The charged current interactions of electron neutrinos are selected by combining the particle identification capabilities of both the time projection chambers and electromagnetic calorimeters of ND280. The measured ratio between the observed electron neutrino beam component and the prediction is 1.01±0.10 providing a direct confirmation of the neutrino fluxes and neutrino cross section modeling used for T2K neutrino oscillation analyses. Electron neutrinos coming from muons and kaons decay are also separately measured, resulting in a ratio with respect to the prediction of 0.68±0.30 and 1.10±0.14, respectively. © 2014 American Physical Society.
AuthorsAbe, KA; Adam, JA; Aihara, HWA; Akiri, TI; Andreopoulos, CA; Aoki, SX; Ariga, AB; Ariga, TB; Assylbekov, SH; Autiero, DA; Barbi, MA; Barker, GJB; Barr, GA; Bass, MH; Batkiewicz, MM; Bay, FK; Bentham, SWZ; Berardi, VR; Berger, BEH; Berkman, SD; Bertram, IZ; Bhadra, SB; Blaszczyk, FDMA; Blondel, AL; Bojechko, CA; Bordoni, SO; Boyd, SBB; Brailsford, DQ; Bravar, AL; Bronner, CY; Buchanan, NH; Calland, RGA; Caravaca Rodríguez, JO; Cartwright, SLA; Castillo, RO; Catanesi, MGR; Cervera, AP; Cherdack, DH; Christodoulou, GA; Clifton, AH; Coleman, JA; Coleman, SJG; Collazuol, GT; Connolly, KB; Cremonesi, LA; Dabrowska, AM; Danko, IA; Das, RH; Davis, SB; De Perio, PA; De Rosa, GS; Dealtry, TAA; Dennis, SRAB; Densham, CA; Di Lodovico, FA; Di Luise, SK; Drapier, OJ; Duboyski, TA; Duffy, KA; Dufour, FL; Dumarchez, JA; Dytman, SA; Dziewiecki, MB; Emery, SF; Ereditato, AB; Escudero, LP; Finch, AJZ; Floetotto, LA; Friend, MN; Fujii, YN; Fukuda, YA; Furmanski, APB; Galymov, VF; Giffin, SA; Giganti, CA; Gilje, KA; Goeldi, DB; Golan, TB; Gomez-Cadenas, JJP; Gonin, MJ; Grant, NZ; Gudin, DV; Hadley, DRB; Haesler, AL; Haigh, MDB; Hamilton, PQ; Hansen, DA; Hara, TX; Hartz, MWA; Hasegawa, TN; Hastings, NCA; Hayato, YA; Hearty, CD; Helmer, RLA; Hierholzer, MB; Hignight, JA; Hillairet, AA; Himmel, AI; Hiraki, TY; Hirota, SY; et al.
- College Publications 
Showing items related by title, author, creator and subject.
Physics Potential of a Long Baseline Neutrino Oscillation Experiment Using J-PARC Neutrino Beam and Hyper-Kamiokande Abe, K; Aihara, H; Andreopoulos, C; Anghel, I; Ariga, A; Ariga, T; Asfandiyarov, R; Askins, M; Back, JJ; Ballett, P;... (2015-02-18)Hyper-Kamiokande will be a next generation underground water Cherenkov detector with a total (fiducial) mass of 0.99 (0.56) million metric tons, approximately 20 (25) times larger than that of Super-Kamiokande. One of the ...
Group, H-KW; Abe, K; Aihara, H; Andreopoulos, C; Anghel, I; Ariga, A; Ariga, T; Asfandiyarov, R; Askins, M; Back, JJ;... (2014-12-15)Hyper-Kamiokande will be a next generation underground water Cherenkov detector with a total (fiducial) mass of 0.99 (0.56) million metric tons, approximately 20 (25) times larger than that of Super-Kamiokande. One of the ...
Physics potential of a long-baseline neutrino oscillation experiment using a J-PARC neutrino beam and Hyper-Kamiokande Abe, K; Aihara, H; Andreopoulos, C; Anghel, I; Ariga, A; Ariga, T; Asfandiyarov, R; Askins, M; Back, JJ; Ballett, P;... (Oxford University Press (OUP): Policy C - Option A, 2015-02-18)