Browsing by Author "I. Anghel"

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First measurement of electron neutrino appearance in NOvA
(American Physical Society, 2016) P. Adamson; C. Ader; M. Andrews; N. Anfimov; I. Anghel; K. Arms; E. Arrieta-Diaz; A. Aurisano; D.S. Ayres; C. Backhouse; M. Baird; B.A. Bambah; K. Bays; R. Bernstein; M. Betancourt; V. Bhatnagar; B. Bhuyan; J. Bian; K. Biery; T. Blackburn; V. Bocean; D. Bogert; A. Bolshakova; M. Bowden; C. Bower; D. Broemmelsiek; C. Bromberg; G. Brunetti; X. Bu; A. Butkevich; D. Capista; E. Catano-Mur; T.R. Chase; S. Childress; B.C. Choudhary; B. Chowdhury; T.E. Coan; J.A.B. Coelho; M. Colo; J. Cooper; L. Corwin; D. Cronin-Hennessy; A. Cunningham; G.S. Davies; J.P. Davies; M. Del Tutto; P.F. Derwent; K.N. Deepthi; D. Demuth; S. Desai; G. Deuerling; A. Devan; J. Dey; R. Dharmapalan; P. Ding; S. Dixon; Z. Djurcic; E.C. Dukes; H. Duyang; R. Ehrlich; G.J. Feldman; N. Felt; E.J. Fenyves; E. Flumerfelt; S. Foulkes; M.J. Frank; W. Freeman; M. Gabrielyan; H.R. Gallagher; M. Gebhard; T. Ghosh; W. Gilbert; A. Giri; S. Goadhouse; R.A. Gomes; L. Goodenough; M.C. Goodman; V. Grichine; N. Grossman; R. Group; J. Grudzinski; V. Guarino; B. Guo; A. Habig; T. Handler; J. Hartnell; R. Hatcher; A. Hatzikoutelis; K. Heller; C. Howcroft; J. Huang; X. Huang; J. Hylen; M. Ishitsuka; F. Jediny; C. Jensen; D. Jensen; C. Johnson; H. Jostlein; G.K. Kafka; Y. Kamyshkov; S.M.S. Kasahara; S. Kasetti; K. Kephart; G. Koizumi; S. Kotelnikov; I. Kourbanis; Z. Krahn; V. Kravtsov; A. Kreymer; Ch. Kulenberg; A. Kumar; T. Kutnink; R. Kwarciancy; J. Kwong; K. Lang; A. Lee; W.M. Lee; K. Lee; S. Lein; J. Liu; M. Lokajicek; J. Lozier; Q. Lu; P. Lucas; S. Luchuk; P. Lukens; G. Lukhanin; S. Magill; K. Maan; W.A. Mann; M.L. Marshak; M. Martens; J. Martincik; P. Mason; K. Matera; M. Mathis; V. Matveev; N. Mayer; E. McCluskey; R. Mehdiyev; H. Merritt; M.D. Messier; H. Meyer; T. Miao; D. Michael; S.P. Mikheyev; W.H. Miller; S.R. Mishra; R. Mohanta; A. Moren; L. Mualem; M. Muether; S. Mufson; J. Musser; H.B. Newman; J.K. Nelson; E. Niner; A. Norman; J. Nowak; Y. Oksuzian; A. Olshevskiy; J. Oliver; T. Olson; J. Paley; P. Pandey; A. Para; R.B. Patterson; G. Pawloski; N. Pearson; D. Perevalov; D. Pershey; E. Peterson; R. Petti; S. Phan-Budd; L. Piccoli; A. Pla-Dalmau; R.K. Plunkett; R. Poling; B. Potukuchi; F. Psihas; D. Pushka; X. Qiu; N. Raddatz; A. Radovic; R.A. Rameika; R. Ray; B. Rebel; R. Rechenmacher; B. Reed; R. Reilly; D. Rocco; D. Rodkin; K. Ruddick; R. Rusack; V. Ryabov; K. Sachdev; S. Sahijpal; H. Sahoo; O. Samoylov; M.C. Sanchez; N. Saoulidou; P. Schlabach; J. Schneps; R. Schroeter; J. Sepulveda-Quiroz; P. Shanahan; B. Sherwood; A. Sheshukov; J. Singh; V. Singh; A. Smith; D. Smith; J. Smolik; N. Solomey; A. Sotnikov; A. Sousa; K. Soustruznik; Y. Stenkin; M. Strait; L. Suter; R.L. Talaga; M.C. Tamsett; S. Tariq; P. Tas; R.J. Tesarek; R.B. Thayyullathil; K. Thomsen; X. Tian; S.C. Tognini; R. Toner; J. Trevor; G. Tzanakos; J. Urheim; P. Vahle; L. Valerio; L. Vinton; T. Vrba; A.V. Waldron; B. Wang; Z. Wang; A. Weber; A. Wehmann; D. Whittington; N. Wilcer; R. Wildberger; D. Wildman; K. Williams; S.G. Wojcicki; K. Wood; M. Xiao; T. Xin; N. Yadav; S. Yang; S. Zadorozhnyy; J. Zalesak; B. Zamorano; A. Zhao; J. Zirnstein; R. Zwaska
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. © 2016 American Physical Society.
First measurement of muon-neutrino disappearance in NOvA
(American Physical Society, 2016) P. Adamson; C. Ader; M. Andrews; N. Anfimov; I. Anghel; K. Arms; E. Arrieta-Diaz; A. Aurisano; D.S. Ayres; C. Backhouse; M. Baird; B.A. Bambah; K. Bays; R. Bernstein; M. Betancourt; V. Bhatnagar; B. Bhuyan; J. Bian; K. Biery; T. Blackburn; V. Bocean; D. Bogert; A. Bolshakova; M. Bowden; C. Bower; D. Broemmelsiek; C. Bromberg; G. Brunetti; X. Bu; A. Butkevich; D. Capista; E. Catano-Mur; T.R. Chase; S. Childress; B.C. Choudhary; B. Chowdhury; T.E. Coan; J.A.B. Coelho; M. Colo; J. Cooper; L. Corwin; D. Cronin-Hennessy; A. Cunningham; G.S. Davies; J.P. Davies; M. Del Tutto; P.F. Derwent; K.N. Deepthi; D. Demuth; S. Desai; G. Deuerling; A. Devan; J. Dey; R. Dharmapalan; P. Ding; S. Dixon; Z. Djurcic; E.C. Dukes; H. Duyang; R. Ehrlich; G.J. Feldman; N. Felt; E.J. Fenyves; E. Flumerfelt; S. Foulkes; M.J. Frank; W. Freeman; M. Gabrielyan; H.R. Gallagher; M. Gebhard; T. Ghosh; W. Gilbert; A. Giri; S. Goadhouse; R.A. Gomes; L. Goodenough; M.C. Goodman; V. Grichine; N. Grossman; R. Group; J. Grudzinski; V. Guarino; B. Guo; A. Habig; T. Handler; J. Hartnell; R. Hatcher; A. Hatzikoutelis; K. Heller; C. Howcroft; J. Huang; X. Huang; J. Hylen; M. Ishitsuka; F. Jediny; C. Jensen; D. Jensen; C. Johnson; H. Jostlein; G.K. Kafka; Y. Kamyshkov; S.M.S. Kasahara; S. Kasetti; K. Kephart; G. Koizumi; S. Kotelnikov; I. Kourbanis; Z. Krahn; V. Kravtsov; A. Kreymer; Ch. Kulenberg; A. Kumar; T. Kutnink; R. Kwarciancy; J. Kwong; K. Lang; A. Lee; W.M. Lee; K. Lee; S. Lein; J. Liu; M. Lokajicek; J. Lozier; Q. Lu; P. Lucas; S. Luchuk; P. Lukens; G. Lukhanin; S. Magill; K. Maan; W.A. Mann; M.L. Marshak; M. Martens; J. Martincik; P. Mason; K. Matera; M. Mathis; V. Matveev; N. Mayer; E. McCluskey; R. Mehdiyev; H. Merritt; M.D. Messier; H. Meyer; T. Miao; D. Michael; S.P. Mikheyev; W.H. Miller; S.R. Mishra; R. Mohanta; A. Moren; L. Mualem; M. Muether; S. Mufson; J. Musser; H.B. Newman; J.K. Nelson; E. Niner; A. Norman; J. Nowak; Y. Oksuzian; A. Olshevskiy; J. Oliver; T. Olson; J. Paley; P. Pandey; A. Para; R.B. Patterson; G. Pawloski; N. Pearson; D. Perevalov; D. Pershey; E. Peterson; R. Petti; S. Phan-Budd; L. Piccoli; A. Pla-Dalmau; R.K. Plunkett; R. Poling; B. Potukuchi; F. Psihas; D. Pushka; X. Qiu; N. Raddatz; A. Radovic; R.A. Rameika; R. Ray; B. Rebel; R. Rechenmacher; B. Reed; R. Reilly; D. Rocco; D. Rodkin; K. Ruddick; R. Rusack; V. Ryabov; K. Sachdev; S. Sahijpal; H. Sahoo; O. Samoylov; M.C. Sanchez; N. Saoulidou; P. Schlabach; J. Schneps; R. Schroeter; J. Sepulveda-Quiroz; P. Shanahan; B. Sherwood; A. Sheshukov; J. Singh; V. Singh; A. Smith; D. Smith; J. Smolik; N. Solomey; A. Sotnikov; A. Sousa; K. Soustruznik; Y. Stenkin; M. Strait; L. Suter; R.L. Talaga; M.C. Tamsett; S. Tariq; P. Tas; R.J. Tesarek; R.B. Thayyullathil; K. Thomsen; X. Tian; S.C. Tognini; R. Toner; J. Trevor; G. Tzanakos; J. Urheim; P. Vahle; L. Valerio; L. Vinton; T. Vrba; A.V. Waldron; B. Wang; Z. Wang; A. Weber; A. Wehmann; D. Whittington; N. Wilcer; R. Wildberger; D. Wildman; K. Williams; S.G. Wojcicki; K. Wood; M. Xiao; T. Xin; N. Yadav; S. Yang; S. Zadorozhnyy; J. Zalesak; B. Zamorano; A. Zhao; J. Zirnstein; R. Zwaska
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. © 2016 American Physical Society.