Abstract
The NOvA experiment has seen a 4.4σ signal of ν̄e appearance in a 2 GeV ν̄μ beam at a distance of 810 km. Using 12.33×1020 protons on target delivered to the Fermilab NuMI neutrino beamline, the experiment recorded 27 ν̄μ→ν̄e candidates with a background of 10.3 and 102 ν̄μ→ν̄μ candidates. This new antineutrino data are combined with neutrino data to measure the parameters |Δm322|=2.48-0.06+0.11×10-3 eV2/c4 and sin2θ23 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 δCP=π/2 for the inverted mass hierarchy by more than 3σ and favor the normal neutrino mass hierarchy by 1.9σ and θ23 values in the upper octant by 1.6σ.
| Original language | English (US) |
|---|---|
| Article number | 151803 |
| Journal | Physical Review Letters |
| Volume | 123 |
| Issue number | 15 |
| DOIs | |
| State | Published - Oct 11 2019 |
ASJC Scopus subject areas
- Physics and Astronomy(all)
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First measurement of neutrino oscillation parameters using neutrinos and antineutrinos by NOvA. / Acero, M. A.; 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. A.; Bashar, S.; Bays, K.; Bending, S.; Bernstein, R.; Bhatnagar, V.; Bhuyan, B.; Bian, J.; Blackburn, T.; Blair, J.; Booth, A. C.; Bour, P.; Bromberg, C.; Buchanan, N.; Butkevich, A.; Calvez, S.; Campbell, M.; Carroll, T. J.; Catano-Mur, E.; Cedeno, A.; Childress, S.; Choudhary, B. C.; Chowdhury, B.; Coan, T. E.; Colo, M.; Cooper, J.; Corwin, L.; Cremonesi, L.; Davies, G. S.; Derwent, P. F.; Ding, P.; Djurcic, Z.; Doyle, D.; Dukes, E. C.; Duyang, H.; Edayath, S.; Ehrlich, R.; Elkins, M.; Feldman, G. J.; Filip, P.; Flanagan, W.; Frank, M. J.; Gallagher, H. R.; Gandrajula, R.; Gao, F.; Germani, S.; Giri, A.; Gomes, R. A.; Goodman, M. C.; 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. M.; Keloth, R.; Klimov, O.; Koerner, L. W.; Kolupaeva, L.; Kotelnikov, S.; Kourbanis, I.; Kreymer, A.; Kulenberg, Ch; Kumar, A.; Kuruppu, C. D.; Kus, V.; Lackey, T.; Lang, K.; Lin, S.; Lokajicek, M.; Lozier, J.; Luchuk, S.; Maan, K.; Magill, S.; Mann, W. A.; Marshak, M. L.; Martinez-Casales, M.; Matveev, V.; Méndez, D. P.; Messier, M. D.; Meyer, H.; Miao, T.; Miller, W. H.; Mishra, S. R.; Mislivec, A.; Mohanta, R.; Moren, A.; Mualem, L.; Muether, M.; Mufson, S.; Mulder, K.; Murphy, R.; Musser, J.; Naples, D.; Nayak, N.; Nelson, J. K.; Nichol, R.; Nikseresht, G.; Niner, E.; Norman, A.; Nosek, T.; Olshevskiy, A.; Olson, T.; Paley, J.; Patterson, R. B.; Pawloski, G.; Pershey, D.; Petrova, O.; Petti, R.; Phan, D. D.; Plunkett, R. K.; Potukuchi, B.; Principato, C.; Psihas, F.; Radovic, A.; Raj, V.; Rameika, R. A.; Rebel, B.; Rojas, P.; Ryabov, V.; Samoylov, O.; Sanchez, M. C.; Sánchez Falero, S.; Seong, I. S.; 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. L.; Tapia Oregui, B.; Tas, P.; Thayyullathil, R. B.; Thomas, J.; Tiras, E.; 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. K.; Wetstein, M.; While, M.; Whittington, D.; Wojcicki, S. G.; Wolcott, J.; Yadav, N.; Yallappa Dombara, A.; Yonehara, K.; Yu, S.; Zadorozhnyy, S.; Zalesak, J.; Zamorano, B.; Zwaska, R.
In: Physical Review Letters, Vol. 123, No. 15, 151803, 11.10.2019.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - First measurement of neutrino oscillation parameters using neutrinos and antineutrinos by NOvA
AU - Acero, M. A.
AU - Adamson, P.
AU - Aliaga, L.
AU - Alion, T.
AU - Allakhverdian, V.
AU - Altakarli, S.
AU - Anfimov, N.
AU - Antoshkin, A.
AU - Aurisano, A.
AU - Back, A.
AU - Backhouse, C.
AU - Baird, M.
AU - Balashov, N.
AU - Baldi, P.
AU - Bambah, B. A.
AU - Bashar, S.
AU - Bays, K.
AU - Bending, S.
AU - Bernstein, R.
AU - Bhatnagar, V.
AU - Bhuyan, B.
AU - Bian, J.
AU - Blackburn, T.
AU - Blair, J.
AU - Booth, A. C.
AU - Bour, P.
AU - Bromberg, C.
AU - Buchanan, N.
AU - Butkevich, A.
AU - Calvez, S.
AU - Campbell, M.
AU - Carroll, T. J.
AU - Catano-Mur, E.
AU - Cedeno, A.
AU - Childress, S.
AU - Choudhary, B. C.
AU - Chowdhury, B.
AU - Coan, T. E.
AU - Colo, M.
AU - Cooper, J.
AU - Corwin, L.
AU - Cremonesi, L.
AU - Davies, G. S.
AU - Derwent, P. F.
AU - Ding, P.
AU - Djurcic, Z.
AU - Doyle, D.
AU - Dukes, E. C.
AU - Duyang, H.
AU - Edayath, S.
AU - Ehrlich, R.
AU - Elkins, M.
AU - Feldman, G. J.
AU - Filip, P.
AU - Flanagan, W.
AU - Frank, M. J.
AU - Gallagher, H. R.
AU - Gandrajula, R.
AU - Gao, F.
AU - Germani, S.
AU - Giri, A.
AU - Gomes, R. A.
AU - Goodman, M. C.
AU - Grichine, V.
AU - Groh, M.
AU - Group, R.
AU - Guo, B.
AU - Habig, A.
AU - Hakl, F.
AU - Hartnell, J.
AU - Hatcher, R.
AU - Hatzikoutelis, A.
AU - Heller, K.
AU - Hewes, J.
AU - Himmel, A.
AU - Holin, A.
AU - Howard, B.
AU - Huang, J.
AU - Hylen, J.
AU - Jediny, F.
AU - Johnson, C.
AU - Judah, M.
AU - Kakorin, I.
AU - Kalra, D.
AU - Kaplan, D. M.
AU - Keloth, R.
AU - Klimov, O.
AU - Koerner, L. W.
AU - Kolupaeva, L.
AU - Kotelnikov, S.
AU - Kourbanis, I.
AU - Kreymer, A.
AU - Kulenberg, Ch
AU - Kumar, A.
AU - Kuruppu, C. D.
AU - Kus, V.
AU - Lackey, T.
AU - Lang, K.
AU - Lin, S.
AU - Lokajicek, M.
AU - Lozier, J.
AU - Luchuk, S.
AU - Maan, K.
AU - Magill, S.
AU - Mann, W. A.
AU - Marshak, M. L.
AU - Martinez-Casales, M.
AU - Matveev, V.
AU - Méndez, D. P.
AU - Messier, M. D.
AU - Meyer, H.
AU - Miao, T.
AU - Miller, W. H.
AU - Mishra, S. R.
AU - Mislivec, A.
AU - Mohanta, R.
AU - Moren, A.
AU - Mualem, L.
AU - Muether, M.
AU - Mufson, S.
AU - Mulder, K.
AU - Murphy, R.
AU - Musser, J.
AU - Naples, D.
AU - Nayak, N.
AU - Nelson, J. K.
AU - Nichol, R.
AU - Nikseresht, G.
AU - Niner, E.
AU - Norman, A.
AU - Nosek, T.
AU - Olshevskiy, A.
AU - Olson, T.
AU - Paley, J.
AU - Patterson, R. B.
AU - Pawloski, G.
AU - Pershey, D.
AU - Petrova, O.
AU - Petti, R.
AU - Phan, D. D.
AU - Plunkett, R. K.
AU - Potukuchi, B.
AU - Principato, C.
AU - Psihas, F.
AU - Radovic, A.
AU - Raj, V.
AU - Rameika, R. A.
AU - Rebel, B.
AU - Rojas, P.
AU - Ryabov, V.
AU - Samoylov, O.
AU - Sanchez, M. C.
AU - Sánchez Falero, S.
AU - Seong, I. S.
AU - Shanahan, P.
AU - Sheshukov, A.
AU - Singh, P.
AU - Singh, V.
AU - Smith, E.
AU - Smolik, J.
AU - Snopok, P.
AU - Solomey, N.
AU - Song, E.
AU - Sousa, A.
AU - Soustruznik, K.
AU - Strait, M.
AU - Suter, L.
AU - Sutton, A.
AU - Talaga, R. L.
AU - Tapia Oregui, B.
AU - Tas, P.
AU - Thayyullathil, R. B.
AU - Thomas, J.
AU - Tiras, E.
AU - Torbunov, D.
AU - Tripathi, J.
AU - Tsaris, A.
AU - Torun, Y.
AU - Urheim, J.
AU - Vahle, P.
AU - Vasel, J.
AU - Vinton, L.
AU - Vokac, P.
AU - Vrba, T.
AU - Wallbank, M.
AU - Wang, B.
AU - Warburton, T. K.
AU - Wetstein, M.
AU - While, M.
AU - Whittington, D.
AU - Wojcicki, S. G.
AU - Wolcott, J.
AU - Yadav, N.
AU - Yallappa Dombara, A.
AU - Yonehara, K.
AU - Yu, S.
AU - Zadorozhnyy, S.
AU - Zalesak, J.
AU - Zamorano, B.
AU - Zwaska, R.
N1 - Funding Information: We are grateful to Stephen Parke (FNAL) for useful discussions. This document was prepared by the NOvA collaboration using the resources of the Fermi National Accelerator Laboratory (Fermilab), a U.S. Department of Energy, Office of Science, HEP User Facility. Fermilab is managed by Fermi Research Alliance, LLC (FRA), acting under Contract No. DE-AC02-07CH11359. This work was supported by the U.S. Department of Energy; the U.S. National Science Foundation; the Department of Science and Technology, India; the European Research Council; the MSMT CR, GA UK, Czech Republic; the RAS, RFBR, RMES, RSF, and BASIS Foundation, Russia; CNPq and FAPEG, Brazil; STFC, and the Royal Society, United Kingdom; and the state and University of Minnesota. This work used resources of the National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility operated under Contract No. DE-AC02-05CH11231. We are grateful for the contributions of the staffs of the University of Minnesota at the Ash River Laboratory and of Fermilab. Publisher Copyright: © 2019 authors. Published by the American Physical Society.
PY - 2019/10/11
Y1 - 2019/10/11
N2 - The NOvA experiment has seen a 4.4σ signal of ν̄e appearance in a 2 GeV ν̄μ beam at a distance of 810 km. Using 12.33×1020 protons on target delivered to the Fermilab NuMI neutrino beamline, the experiment recorded 27 ν̄μ→ν̄e candidates with a background of 10.3 and 102 ν̄μ→ν̄μ candidates. This new antineutrino data are combined with neutrino data to measure the parameters |Δm322|=2.48-0.06+0.11×10-3 eV2/c4 and sin2θ23 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 δCP=π/2 for the inverted mass hierarchy by more than 3σ and favor the normal neutrino mass hierarchy by 1.9σ and θ23 values in the upper octant by 1.6σ.
AB - The NOvA experiment has seen a 4.4σ signal of ν̄e appearance in a 2 GeV ν̄μ beam at a distance of 810 km. Using 12.33×1020 protons on target delivered to the Fermilab NuMI neutrino beamline, the experiment recorded 27 ν̄μ→ν̄e candidates with a background of 10.3 and 102 ν̄μ→ν̄μ candidates. This new antineutrino data are combined with neutrino data to measure the parameters |Δm322|=2.48-0.06+0.11×10-3 eV2/c4 and sin2θ23 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 δCP=π/2 for the inverted mass hierarchy by more than 3σ and favor the normal neutrino mass hierarchy by 1.9σ and θ23 values in the upper octant by 1.6σ.
UR - http://www.scopus.com/inward/record.url?scp=85073474513&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85073474513&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.123.151803
DO - 10.1103/PhysRevLett.123.151803
M3 - Article
C2 - 31702305
AN - SCOPUS:85073474513
VL - 123
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 15
M1 - 151803
ER -