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Browsing Physics - Publications by Author "Ader, C."
  • Item
    First measurement of electron neutrino appearance in NOvA
    ( 2016-04-13) Adamson, P. ; Ader, C. ; Andrews, M. ; Anfimov, N. ; Anghel, I. ; Arms, K. ; Arrieta-Diaz, E. ; Aurisano, A. ; Ayres, D. S. ; Backhouse, C. ; Baird, M. ; Bambah, B. A. ; 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, T. R. ; Childress, S. ; Choudhary, B. C. ; Chowdhury, B. ; Coan, T. E. ; Coelho, J. A.B. ; Colo, M. ; Cooper, J. ; Corwin, L. ; Cronin-Hennessy, D. ; Cunningham, A. ; Davies, G. S. ; Davies, J. P. ; Del Tutto, M. ; Derwent, P. F. ; Deepthi, K. N. ; Demuth, D. ; Desai, S. ; Deuerling, G. ; Devan, A. ; Dey, J. ; Dharmapalan, R. ; Ding, P. ; Dixon, S. ; Djurcic, Z. ; Dukes, E. C. ; Duyang, H. ; Ehrlich, R. ; Feldman, G. J. ; Felt, N. ; Fenyves, E. J. ; Flumerfelt, E. ; Foulkes, S. ; Frank, M. J. ; Freeman, W. ; Gabrielyan, M. ; Gallagher, H. R. ; Gebhard, M. ; Ghosh, T. ; Gilbert, W. ; Giri, A. ; Goadhouse, S. ; Gomes, R. A. ; Goodenough, L. ; Goodman, M. C. ; 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, G. K.
    We report results from the first search for νμ→νe transitions by the NOvA experiment. In an exposure equivalent to 2.74×1020 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 < δCP < 0.5π in the inverted mass hierarchy at the 90% C.L.
  • Item
    First measurement of electron neutrino appearance in NOvA
    ( 2016-04-13) Adamson, P. ; Ader, C. ; Andrews, M. ; Anfimov, N. ; Anghel, I. ; Arms, K. ; Arrieta-Diaz, E. ; Aurisano, A. ; Ayres, D. S. ; Backhouse, C. ; Baird, M. ; Bambah, B. A. ; 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, T. R. ; Childress, S. ; Choudhary, B. C. ; Chowdhury, B. ; Coan, T. E. ; Coelho, J. A.B. ; Colo, M. ; Cooper, J. ; Corwin, L. ; Cronin-Hennessy, D. ; Cunningham, A. ; Davies, G. S. ; Davies, J. P. ; Del Tutto, M. ; Derwent, P. F. ; Deepthi, K. N. ; Demuth, D. ; Desai, S. ; Deuerling, G. ; Devan, A. ; Dey, J. ; Dharmapalan, R. ; Ding, P. ; Dixon, S. ; Djurcic, Z. ; Dukes, E. C. ; Duyang, H. ; Ehrlich, R. ; Feldman, G. J. ; Felt, N. ; Fenyves, E. J. ; Flumerfelt, E. ; Foulkes, S. ; Frank, M. J. ; Freeman, W. ; Gabrielyan, M. ; Gallagher, H. R. ; Gebhard, M. ; Ghosh, T. ; Gilbert, W. ; Giri, A. ; Goadhouse, S. ; Gomes, R. A. ; Goodenough, L. ; Goodman, M. C. ; 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, G. K.
    We report results from the first search for νμ→νe transitions by the NOvA experiment. In an exposure equivalent to 2.74×1020 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 < δCP < 0.5π in the inverted mass hierarchy at the 90% C.L.
  • Item
    First measurement of muon-neutrino disappearance in NOvA
    ( 2016-03-25) Adamson, P. ; Ader, C. ; Andrews, M. ; Anfimov, N. ; Anghel, I. ; Arms, K. ; Arrieta-Diaz, E. ; Aurisano, A. ; Ayres, D. S. ; Backhouse, C. ; Baird, M. ; Bambah, B. A. ; 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, T. R. ; Childress, S. ; Choudhary, B. C. ; Chowdhury, B. ; Coan, T. E. ; Coelho, J. A.B. ; Colo, M. ; Cooper, J. ; Corwin, L. ; Cronin-Hennessy, D. ; Cunningham, A. ; Davies, G. S. ; Davies, J. P. ; Del Tutto, M. ; Derwent, P. F. ; Deepthi, K. N. ; Demuth, D. ; Desai, S. ; Deuerling, G. ; Devan, A. ; Dey, J. ; Dharmapalan, R. ; Ding, P. ; Dixon, S. ; Djurcic, Z. ; Dukes, E. C. ; Duyang, H. ; Ehrlich, R. ; Feldman, G. J. ; Felt, N. ; Fenyves, E. J. ; Flumerfelt, E. ; Foulkes, S. ; Frank, M. J. ; Freeman, W. ; Gabrielyan, M. ; Gallagher, H. R. ; Gebhard, M. ; Ghosh, T. ; Gilbert, W. ; Giri, A. ; Goadhouse, S. ; Gomes, R. A. ; Goodenough, L. ; Goodman, M. C. ; 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, G. K.
    This paper reports the first measurement using the NOvA detectors of νμ disappearance in a νμ beam. The analysis uses a 14 kton-equivalent exposure of 2.74×1020 protons-on-target from the Fermilab NuMI beam. Assuming the normal neutrino mass hierarchy, we measure Δm322=(2.52-0.18+0.20)×10-3 eV2 and sin2θ23 in the range 0.38-0.65, both at the 68% confidence level, with two statistically degenerate best-fit points at sin2θ23=0.43 and 0.60. Results for the inverted mass hierarchy are also presented.
  • Item
    First measurement of muon-neutrino disappearance in NOvA
    ( 2016-03-25) Adamson, P. ; Ader, C. ; Andrews, M. ; Anfimov, N. ; Anghel, I. ; Arms, K. ; Arrieta-Diaz, E. ; Aurisano, A. ; Ayres, D. S. ; Backhouse, C. ; Baird, M. ; Bambah, B. A. ; 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, T. R. ; Childress, S. ; Choudhary, B. C. ; Chowdhury, B. ; Coan, T. E. ; Coelho, J. A.B. ; Colo, M. ; Cooper, J. ; Corwin, L. ; Cronin-Hennessy, D. ; Cunningham, A. ; Davies, G. S. ; Davies, J. P. ; Del Tutto, M. ; Derwent, P. F. ; Deepthi, K. N. ; Demuth, D. ; Desai, S. ; Deuerling, G. ; Devan, A. ; Dey, J. ; Dharmapalan, R. ; Ding, P. ; Dixon, S. ; Djurcic, Z. ; Dukes, E. C. ; Duyang, H. ; Ehrlich, R. ; Feldman, G. J. ; Felt, N. ; Fenyves, E. J. ; Flumerfelt, E. ; Foulkes, S. ; Frank, M. J. ; Freeman, W. ; Gabrielyan, M. ; Gallagher, H. R. ; Gebhard, M. ; Ghosh, T. ; Gilbert, W. ; Giri, A. ; Goadhouse, S. ; Gomes, R. A. ; Goodenough, L. ; Goodman, M. C. ; 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, G. K.
    This paper reports the first measurement using the NOvA detectors of νμ disappearance in a νμ beam. The analysis uses a 14 kton-equivalent exposure of 2.74×1020 protons-on-target from the Fermilab NuMI beam. Assuming the normal neutrino mass hierarchy, we measure Δm322=(2.52-0.18+0.20)×10-3 eV2 and sin2θ23 in the range 0.38-0.65, both at the 68% confidence level, with two statistically degenerate best-fit points at sin2θ23=0.43 and 0.60. Results for the inverted mass hierarchy are also presented.