New constraints on oscillation parameters from v(e) appearance and v(mu) disappearance in the NOvA experiment

Acero, M.; Adamson, P.; Aliaga, L.; Alion, T.; Allakhverdian, V.; Anfimov, N.; Antoshkin, A.; Arrieta-Diaz, E.; Aurisano, A.; Back, A.; Backhouse, C.; Baird, M.; Balashov, N.; Bambah, B.; Bays, K.; Behera, B.; Bending, S.; Bernstein, R.; Bhatnagar, V.; Bhuyan, B.; Bian, J.; Blackburn, T.; Blair, J.; Bolshakova, A.; Bour, P.; Bromberg, C.; Brown, J.; Buchanan, N.; Butkevich, A.; Bychkov, V.; 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.; Cronin-Hennessy, D.; Davies, G.; Davies, J.; De Rijck, S.; Derwent, P.; Dharmapalan, R.; Ding, P.; Djurcic, Z.; Dukes, E.; Dung, P.; Duyang, H.; Edayath, S.; Ehrlich, R.; Feldman, G.; Frank, M.; Gallagher, H.; Gandrajula, R.; Gao, F.; Germani, S.; Giri, A.; Gomes, R.; Goodman, M.; Grichine, V.; Groh, M.; Group, R.; Grover, D.; Guo, B.; Habig, A.; Hakl, F.; Hartnell, J.; Hatcher, R.; Hatzikoutelis, A.; Heller, K.; Himmel, A.; Holin, A.; Howard, B.; Huang, J.; Hylen, J.; Jediny, F.; 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.; 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.; Murphy, R.; Musser, J.; Naples, D.; Nayak, N.; Nelson, J.; Nichol, R.; Niner, E.; Norman, A.; Nosek, T.; Oksuzian, Y.; Olshevskiy, A.; Olson, T.; Paley, J.; Patterson, R.; Pawloski, G.; Pershey, D.; Petrova, O.; Petti, R.; Phan-Budd, S.; Plunkett, R.; Potukuchi, B.; Principato, C.; Psihas, F.; Radovic, A.; Rameika, R.; Rebel, B.; Rojas, P.; Ryabov, V.; Sachdev, K.; Samoylov, O.; Sanchez, M.; Sepulveda-Quiroz, J.; 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.; Talaga, R.; Tas, P.; Thayyullathil, R.; Thomas, J.; Tiras, EMRAH; Tognini, S.; Torbunov, D.; Tripathi, J.; Tsaris, A.; Torun, Y.; Urheim, J.; Vahle, P.; Vasel, J.; Vinton, L.; Vokac, P.; Vold, A.; Vrba, T.; Wang, B.; Warburton, T.; Wetstein, M.; Whittington, D.; Wojcicki, S.; Wolcott, J.; Yang, S.; Yu, S.; Zalesak, J.; Zamorano, B.; Zwaska, R.

doi:10.1103/physrevd.98.032012

New constraints on oscillation parameters from v(e) appearance and v(mu) disappearance in the NOvA experiment

Atıf İçin Kopyala

Acero M. A., Adamson P., Aliaga L., Alion T., Allakhverdian V., Anfimov N., ...Daha Fazla

PHYSICAL REVIEW D, cilt.98, sa.3, 2018 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 98 Sayı: 3
Basım Tarihi: 2018
Doi Numarası: 10.1103/physrevd.98.032012
Dergi Adı: PHYSICAL REVIEW D
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Erciyes Üniversitesi Adresli: Hayır

Özet

We present updated results from the NOvA experiment for v(mu) -> v(mu) and v(mu) -> v(e) oscillations from an exposure of 8.85 x 10(20) protons on target, which represents an increase of 46% compared to our previous publication. The results utilize significant improvements in both the simulations and analysis of the data. A joint fit to the data for v(mu) disappearance and v(e) appearance gives the best-fit point as normal mass hierarchy, Delta m(32)(2) = 2.44 x 10(-3) eV(2)/c(4), sin(2) theta(23) = 0.56, and delta(CP) = 1.21 pi. The 68.3% confidence intervals in the normal mass hierarchy are Delta m(32)(2) is an element of[2.37, 2.52] x 10(-3) eV(2)/c(4) , sin(2) theta(23) is an element of [0.43; 0.51] boolean OR [0.52; 0.60], and delta(CP) is an element of [0, 0.21 pi] boolean OR [0.91 pi, 2 pi]. The inverted mass hierarchy is disfavored at the 95% confidence level for all choices of the other oscillation parameters.