Improved measurement of neutrino oscillation parameters by the NOvA experiment

Acero, M.; Adamson, P.; Aliaga, L.; Anfimov, N.; Antoshkin, A.; Arrieta-Diaz, E.; Asquith, L.; Aurisano, A.; Back, A.; Backhouse, C.; Baird, M.; Balashov, N.; Baldi, P.; Bambah, B.; Bashar, S.; Bays, K.; Bernstein, R.; Bhatnagar, V; Bhattarai, D.; Bhuyan, B.; Bian, J.; Blair, J.; Booth, A.; Bowles, R.; Bromberg, C.; Buchanan, N.; Butkevich, A.; Calvez, S.; Carroll, T.; Catano-Mur, E.; Choudhary, B.; Christensen, A.; Coan, T.; Colo, M.; Cremonesi, L.; Davies, G.; Derwent, P.; Ding, P.; Djurcic, Z.; Dolce, M.; Doyle, D.; Tonguino, D.; Dukes, E.; Duyang, H.; Ehrlich, R.; Elkins, M.; Ewart, E.; Feldman, G.; Filip, P.; Franc, J.; Frank, M.; Gallagher, H.; Gandrajula, R.; Gao, F.; Giri, A.; Gomes, R.; Goodman, M.; Grichine, V; Groh, M.; Group, R.; Guo, B.; Habig, A.; Hakl, F.; Hall, A.; Hartnell, J.; Hatcher, R.; Hausner, H.; He, M.; Heller, K.; Hewes, J.; Himmel, A.; Holin, A.; Huang, J.; Jargowsky, B.; Jarosz, J.; Jediny, F.; Johnson, C.; Judah, M.; Kakorin, I; Kaplan, D.; Kalitkina, A.; Keloth, R.; Klimov, O.; Koerner, L.; Kolupaeva, L.; Kotelnikov, S.; Kralik, R.; Kullenberg, Ch; Kubu, M.; Kumar, A.; Kuruppu, C.; Kus, V; Lackey, T.; Lang, K.; Lasorak, P.; Lesmeister, J.; Lin, S.; Lister, A.; Liu, J.; Lokajicek, M.; Magill, S.; Plata, M.; Mann, W.; Marshak, M.; Martinez-Casales, M.; Matveev, V; Mayes, B.; Mendez, D.; Messier, M.; Meyer, H.; Miao, T.; Miller, W.; Mishra, S.; Mislivec, A.; Mohanta, R.; Moren, A.; Morozova, A.; Mu, W.; Mualem, L.; Muether, M.; Mufson, S.; Mulder, K.; Naples, D.; Nayak, N.; Nelson, J.; Nichol, R.; Niner, E.; Norman, A.; Norrick, A.; Nosek, T.; Oh, H.; Olshevskiy, A.; Olson, T.; Ott, J.; Paley, J.; Patterson, R.; Pawloski, G.; Petrova, O.; Petti, R.; Phan, D.; Plunkett, R.; Porter, J.; Rafique, A.; Psihas, F.; Raj, V; Rajaoalisoa, M.; Ramson, B.; Rebel, B.; Rojas, P.; Roy, P.; Ryabov, V; Samoylov, O.; Sanchez, M.; Falero, S.; Shanahan, P.; Sheshukov, A.; Singh, P.; Singh, V; Smith, E.; Smolik, J.; Snopok, P.; Solomey, N.; Sousa, A.; Soustruznik, K.; Strait, M.; Suter, L.; Sutton, A.; Swain, S.; Sweeney, C.; Sztuc, A.; Talaga, R.; Oregui, B.; Tas, P.; Thakore, T.; Thayyullathil, R.; Thomas, J.; TIRAŞ, EMRAH; Tripathi, J.; Trokan-Tenorio, J.; Tsaris, A.; Torun, Y.; Urheim, J.; Vahle, P.; Vallari, Z.; Vasel, J.; Vokac, P.; Vrba, T.; Wallbank, M.; Warburton, T.; Wetstein, M.; Whittington, D.; Wickremasinghe, D.; Wojcicki, S.; Wolcott, J.; Wu, W.; Xiao, Y.; Dombara, A.; Yankelevich, A.; Yonehara, K.; Yu, S.; Yu, Y.; Zadorozhnyy, S.; Zalesak, J.; Zhang, Y.; Zwaska, R.

doi:10.1103/physrevd.106.032004

Improved measurement of neutrino oscillation parameters by the NOvA experiment

Atıf İçin Kopyala

Acero M. A., Adamson P., Aliaga L., Anfimov N., Antoshkin A., Arrieta-Diaz E., ...Daha Fazla

PHYSICAL REVIEW D, cilt.106, sa.3, 2022 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 106 Sayı: 3
Basım Tarihi: 2022
Doi Numarası: 10.1103/physrevd.106.032004
Dergi Adı: PHYSICAL REVIEW D
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, INSPEC, zbMATH
Erciyes Üniversitesi Adresli: Hayır

Özet

We present new nu(mu) -> nu(e), nu(mu) -> nu(mu), (nu) over bar (mu) -> (nu) over bar (e), and (nu) over bar (mu) -> (nu) over bar (mu) oscillation measurements by the NOvA experiment, with a 50% increase in neutrino-mode beam exposure over the previously reported results. The additional data, combined with previously published neutrino and antineutrino data, are all analyzed using improved techniques and simulations. A joint fit to the nu(e), nu(mu), (nu) over bar (e), and (nu) over bar (mu), candidate samples within the 3-flavor neutrino oscillation framework continues to yield a best-fit point in the normal mass ordering and the upper octant of the theta(23) mixing angle, with Delta m(32)(2) = (2.41 +/- 0.07) x 10(-3) eV(2) and sin(2)theta(23) = 0.57(-0.04)(+0.03). The data disfavor combinations of oscillation parameters that give rise to a large asymmetry in the rates of nu(e) and (nu) over bar (e) appearance. This includes values of the charge parity symmetry (CP) violating phase in the vicinity of delta(CP) = pi/2 which arc excluded by > 3 sigma for the inverted mass ordering, and values around delta(CP) = 3 pi/2 in the normal ordering which are disfavored at 2 sigma confidence.