Constraints on Oscillation Parameters from ν_{e} Appearance and ν_{μ} Disappearance in NOvA. Adamson P , Aliaga L , Ambrose D , Anfimov N , Antoshkin A , Arrieta-Diaz E , Augsten K , Aurisano A , Backhouse C , Baird M , Bambah B A , Bays K , Behera B , Bending S , Bernstein R , Bhatnagar V , Bhuyan B , Bian J , Blackburn T , Bolshakova A , Bromberg C , Brown J , Brunetti G , Buchanan N , Butkevich A , Bychkov V , Campbell M , Catano-Mur E , Childress S , Choudhary B C , Chowdhury B , Coan T E , Coelho J A B , Colo M , Cooper J , Corwin L , Cremonesi L , Cronin-Hennessy D , Davies G S , Davies J P , Derwent P F , Dharmapalan R , Ding P , Djurcic Z , Dukes E C , Duyang H , Edayath S , Ehrlich R , Feldman G J , Frank M J , Gabrielyan M , Gallagher H R , Germani S , Ghosh T , Giri A , Gomes R A , Goodman M C , Grichine V , Group R , Grover D , Guo B , Habig A , Hartnell J , Hatcher R , Hatzikoutelis A , Heller K , Himmel A , Holin A , Hylen J , Jediny F , Judah M , Kafka G K , Kalra D , Kasahara S M S , Kasetti S , Keloth R , Kolupaeva L , Kotelnikov S , Kourbanis I , Kreymer A , Kumar A , Kurbanov S , Lang K , Lee W M , Lin S , Liu J , Lokajicek M , Lozier J , Luchuk S , Maan K , Magill S , Mann W A , Marshak M L , Matera K , Matveev V , Méndez D P , Messier M D , Meyer H , Miao T , Miller W H , Mishra S R , Mohanta R , Moren A , Mualem L , Muether M , Mufson S , Murphy R , Musser J , Nelson J K , Nichol R , Niner E , Norman A , Nosek T , Oksuzian Y , Olshevskiy A , Olson T , Paley J , Pandey P , Patterson R B , Pawloski G , Pershey D , Petrova O , Petti R , Phan-Budd S , Plunkett R K , Poling R , Potukuchi B , Principato C , Psihas F , Radovic A , Rameika R A , Rebel B , Reed B , Rocco D , Rojas P , Ryabov V , Sachdev K , Sail P , Samoylov O , Sanchez M C , Schroeter R , Sepulveda-Quiroz J , Shanahan P , Sheshukov A , Singh J , Singh P , Singh V , Smolik J , Solomey N , Song E , Sousa A , Soustruznik K , Strait M , Suter L , Talaga R L , Tamsett M C , Tas P , Thayyullathil R B , Thomas J , Tian X , Tognini S C , Tripathi J , Tsaris A , Urheim J , Vahle P , Vasel J , Vinton L , Vold A , Vrba T , Wang B , Wetstein M , Whittington D , Wojcicki S G , Wolcott J , Yadav N , Yang S , Zalesak J , Zamorano B , Zwaska R , Null Null PHYSICAL REVIEW LETTERS（2017）
摘要
Results are reported from an improved measurement of nu(mu) -> nu(e) transitions by the NOvA experiment. Using an exposure equivalent to 6.05 x 10(20) protons on target, 33 nu(e) candidates are observed with a background of 8.2 +/- 0.8 (syst.). Combined with the latest NOvA nu(mu) disappearance data and external constraints from reactor experiments on sin(2) 2 theta(13), the hypothesis of inverted mass hierarchy with theta(23) in the lower octant is disfavored at greater than 93% C.L. for all values of delta(CP).
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