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First Measurement of Electron Neutrino Appearance in NOvA.

  • Author(s): Adamson, P
  • Ader, C
  • Andrews, M
  • Anfimov, N
  • Anghel, I
  • Arms, K
  • Arrieta-Diaz, E
  • Aurisano, A
  • Ayres, DS
  • Backhouse, C
  • Baird, M
  • Bambah, BA
  • Bays, K
  • Bernstein, R
  • Betancourt, M
  • Bhatnagar, V
  • Bhuyan, B
  • Bian, J
  • Biery, K
  • Blackburn, T
  • Bocean, V
  • Bogert, D
  • Bolshakova, A
  • Bowden, M
  • Bower, C
  • Broemmelsiek, D
  • Bromberg, C
  • Brunetti, G
  • Bu, X
  • Butkevich, A
  • Capista, D
  • Catano-Mur, E
  • Chase, TR
  • Childress, S
  • Choudhary, BC
  • Chowdhury, B
  • Coan, TE
  • Coelho, JAB
  • Colo, M
  • Cooper, J
  • Corwin, L
  • Cronin-Hennessy, D
  • Cunningham, A
  • Davies, GS
  • Davies, JP
  • Del Tutto, M
  • Derwent, PF
  • Deepthi, KN
  • Demuth, D
  • Desai, S
  • Deuerling, G
  • Devan, A
  • Dey, J
  • Dharmapalan, R
  • Ding, P
  • Dixon, S
  • Djurcic, Z
  • Dukes, EC
  • Duyang, H
  • Ehrlich, R
  • Feldman, GJ
  • Felt, N
  • Fenyves, EJ
  • Flumerfelt, E
  • Foulkes, S
  • Frank, MJ
  • Freeman, W
  • Gabrielyan, M
  • Gallagher, HR
  • Gebhard, M
  • Ghosh, T
  • Gilbert, W
  • Giri, A
  • Goadhouse, S
  • Gomes, RA
  • Goodenough, L
  • Goodman, MC
  • Grichine, V
  • Grossman, N
  • Group, R
  • Grudzinski, J
  • Guarino, V
  • Guo, B
  • Habig, A
  • Handler, T
  • Hartnell, J
  • Hatcher, R
  • Hatzikoutelis, A
  • Heller, K
  • Howcroft, C
  • Huang, J
  • Huang, X
  • Hylen, J
  • Ishitsuka, M
  • Jediny, F
  • Jensen, C
  • Jensen, D
  • Johnson, C
  • Jostlein, H
  • Kafka, GK
  • Kamyshkov, Y
  • Kasahara, SMS
  • Kasetti, S
  • Kephart, K
  • Koizumi, G
  • Kotelnikov, S
  • Kourbanis, I
  • Krahn, Z
  • Kravtsov, V
  • Kreymer, A
  • Kulenberg, Ch
  • Kumar, A
  • Kutnink, T
  • Kwarciancy, R
  • Kwong, J
  • Lang, K
  • Lee, A
  • Lee, WM
  • Lee, K
  • Lein, S
  • Liu, J
  • Lokajicek, M
  • Lozier, J
  • Lu, Q
  • Lucas, P
  • Luchuk, S
  • Lukens, P
  • Lukhanin, G
  • Magill, S
  • Maan, K
  • Mann, WA
  • Marshak, ML
  • Martens, M
  • Martincik, J
  • Mason, P
  • Matera, K
  • Mathis, M
  • Matveev, V
  • Mayer, N
  • McCluskey, E
  • Mehdiyev, R
  • Merritt, H
  • Messier, MD
  • Meyer, H
  • Miao, T
  • Michael, D
  • Mikheyev, SP
  • Miller, WH
  • Mishra, SR
  • Mohanta, R
  • Moren, A
  • Mualem, L
  • Muether, M
  • Mufson, S
  • Musser, J
  • Newman, HB
  • Nelson, JK
  • Niner, E
  • Norman, A
  • Nowak, J
  • Oksuzian, Y
  • Olshevskiy, A
  • Oliver, J
  • Olson, T
  • Paley, J
  • Pandey, P
  • Para, A
  • Patterson, RB
  • Pawloski, G
  • Pearson, N
  • Perevalov, D
  • Pershey, D
  • Peterson, E
  • Petti, R
  • Phan-Budd, S
  • Piccoli, L
  • Pla-Dalmau, A
  • Plunkett, RK
  • Poling, R
  • Potukuchi, B
  • Psihas, F
  • Pushka, D
  • Qiu, X
  • Raddatz, N
  • Radovic, A
  • Rameika, RA
  • Ray, R
  • Rebel, B
  • Rechenmacher, R
  • Reed, B
  • Reilly, R
  • Rocco, D
  • Rodkin, D
  • Ruddick, K
  • Rusack, R
  • Ryabov, V
  • Sachdev, K
  • Sahijpal, S
  • Sahoo, H
  • Samoylov, O
  • Sanchez, MC
  • Saoulidou, N
  • Schlabach, P
  • Schneps, J
  • Schroeter, R
  • Sepulveda-Quiroz, J
  • Shanahan, P
  • Sherwood, B
  • Sheshukov, A
  • Singh, J
  • Singh, V
  • Smith, A
  • Smith, D
  • Smolik, J
  • Solomey, N
  • Sotnikov, A
  • Sousa, A
  • Soustruznik, K
  • Stenkin, Y
  • Strait, M
  • Suter, L
  • Talaga, RL
  • Tamsett, MC
  • Tariq, S
  • Tas, P
  • Tesarek, RJ
  • Thayyullathil, RB
  • Thomsen, K
  • Tian, X
  • Tognini, SC
  • Toner, R
  • Trevor, J
  • Tzanakos, G
  • Urheim, J
  • Vahle, P
  • Valerio, L
  • Vinton, L
  • Vrba, T
  • Waldron, AV
  • Wang, B
  • Wang, Z
  • Weber, A
  • Wehmann, A
  • Whittington, D
  • Wilcer, N
  • Wildberger, R
  • Wildman, D
  • Williams, K
  • Wojcicki, SG
  • Wood, K
  • Xiao, M
  • Xin, T
  • Yadav, N
  • Yang, S
  • Zadorozhnyy, S
  • Zalesak, J
  • Zamorano, B
  • Zhao, A
  • Zirnstein, J
  • Zwaska, R
  • NOvA Collaboration
  • et al.
Abstract

We report results from the first search for ν_{μ}→ν_{e} transitions by the NOvA experiment. In an exposure equivalent to 2.74×10^{20} protons on target in the upgraded NuMI beam at Fermilab, we observe 6 events in the Far Detector, compared to a background expectation of 0.99±0.11(syst) events based on the Near Detector measurement. A secondary analysis observes 11 events with a background of 1.07±0.14(syst). The 3.3σ excess of events observed in the primary analysis disfavors 0.1π<δ_{CP}<0.5π in the inverted mass hierarchy at the 90% C.L.

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