First measurement of neutrino oscillation parameters using neutrinos and antineutrinos by NOvA

Acero, M.; Adamson, P.; Aliaga, L.; Alion, T.; Allakhverdian, V; Altakarli, S.; Anfimov, N.; Antoshkin, A.; Aurisano, A.; Back, A.; Backhouse, C.; Baird, M.; Balashov, N.; Baldi, P.; Bambah, B.; Bashar, S.; Bays, K.; Bending, S.; Bernstein, R.; Bhatnagar, V; Bhuyan, B.; Bian, J.; Blackburn, T.; Blair, J.; Booth, A.; Bour, P.; Bromberg, C.; Buchanan, N.; Butkevich, A.; Calvez, S.; Campbell, M.; Carroll, T.; Catano-Mur, E.; Cedeno, A.; Childress, S.; Choudhary, B.; Chowdhury, B.; Coan, T.; Colo, M.; Cooper, J.; Corwin, L.; Cremonesi, L.; Davies, G.; Derwent, P.; Ding, P.; Djurcic, Z.; Doyle, D.; Dukes, E.; Duyang, H.; Edayath, S.; Ehrlich, R.; Elkins, M.; Feldman, G.; Filip, P.; Flanagan, W.; Frank, M.; Gallagher, H.; Gandrajula, R.; Gao, F.; Germani, S.; Giri, A.; Gomes, R.; Goodman, M.; Grichine, V; Groh, M.; Group, R.; Guo, B.; Habig, A.; Hakl, F.; Hartnell, J.; Hatcher, R.; Hatzikoutelis, A.; Heller, K.; Hewes, J.; Himmel, A.; Holin, A.; Howard, B.; Huang, J.; Hylen, J.; Jediny, F.; Johnson, C.; Judah, M.; Kakorin, I; Kalra, D.; Kaplan, D.; Keloth, R.; Klimov, O.; Koerner, L.; Kolupaeva, L.; Kotelnikov, S.; Kourbanis, I; Kreymer, A.; Kulenberg, Ch; Kumar, A.; Kuruppu, C.; Kus, V; Lackey, T.; Lang, K.; Lin, S.; Lokajicek, M.; Lozier, J.; Luchuk, S.; Maan, K.; Magill, S.; Mann, W.; Marshak, M.; Martinez-Casales, M.; Matveev, V; Mendez, D.; Messier, M.; Meyer, H.; Miao, T.; Miller, W.; Mishra, S.; Mislivec, A.; Mohanta, R.; Moren, A.; Mualem, L.; Muether, M.; Mufson, S.; Mulder, K.; Murphy, R.; Musser, J.; Naples, D.; Nayak, N.; Nelson, J.; Nichol, R.; Nikseresht, G.; Niner, E.; Norman, A.; Nosek, T.; Olshevskiy, A.; Olson, T.; Paley, J.; Patterson, R.; Pawloski, G.; Pershey, D.; Petrova, O.; Petti, R.; Phan, D.; Plunkett, R.; Potukuchi, B.; Principato, C.; Psihas, F.; Radovic, A.; Raj, V; Rameika, R.; Rebel, B.; Rojas, P.; Ryabov, V; Samoylov, O.; Sanchez, M.; Falero, S.; Seong, I.; Shanahan, P.; Sheshukov, A.; Singh, P.; Singh, V; Smith, E.; Smolik, J.; Snopok, P.; Solomey, N.; Song, E.; Sousa, A.; Soustruznik, K.; Strait, M.; Suter, L.; Sutton, A.; Talaga, R.; Oregui, B.; Tas, P.; Thayyullathil, R.; Thomas, J.; Tiras, EMRAH; Torbunov, D.; Tripathi, J.; Tsaris, A.; Torun, Y.; Urheim, J.; Vahle, P.; Vasel, J.; Vinton, L.; Vokac, P.; Vrba, T.; Wallbank, M.; Wang, B.; Warburton, T.; Wetstein, M.; While, M.; Whittington, D.; Wojcicki, S.; Wolcott, J.; Yadav, N.; Dombara, A.; Yonehara, K.; Yu, S.; Zadorozhnyy, S.; Zalesak, J.; Zamorano, B.; Zwaska, R.

doi:10.1103/physrevlett.123.151803

First measurement of neutrino oscillation parameters using neutrinos and antineutrinos by NOvA

Atıf İçin Kopyala

Acero M. A., Adamson P., Aliaga L., Alion T., Allakhverdian V., Altakarli S., ...Daha Fazla

PHYSICAL REVIEW LETTERS, cilt.123, sa.15, 2019 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 123 Sayı: 15
Basım Tarihi: 2019
Doi Numarası: 10.1103/physrevlett.123.151803
Dergi Adı: PHYSICAL REVIEW LETTERS
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Erciyes Üniversitesi Adresli: Hayır

Özet

The NOvA experiment has seen a 4.4 sigma signal of (nu) over bar (e) appearance in a 2 GeV (nu) over bar (mu), beam at a distance of 810 km. Using 12.33 x 10(20) protons on target delivered to the Fermilab NuMI neutrino beamline, the experiment recorded 27 (nu) over bar mu -> (nu) over bar (e) candidates with a background of 10.3 and 102 (nu) over bar mu -> (nu) over bar mu candidates. This new antineutrino data are combined with neutrino data to measure the parameters vertical bar Delta m(32)(2)vertical bar = 2 .48(-0.06)(+0.11) x 10(-3) eV(2)/c(4) and sin(2) theta(23) in the ranges from (0.53-0.60) and (0.45-0.48) in the normal neutrino mass hierarchy. The data exclude most values near delta(CP) = pi/2 for the inverted mass hierarchy by more than 3 sigma and favor the normal neutrino mass hierarchy by 1.9 sigma and theta(23) values in the upper octant by 1.6 sigma.