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

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

doi:10.1103/PhysRevLett.123.151803

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

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

Research output: Contribution to journal › Article › peer-review

232 Scopus citations

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	https://doi.org/10.1103/PhysRevLett.123.151803
State	Published - Oct 11 2019

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Publisher Copyright:
© 2019 authors. Published by the American Physical Society.

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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., ... Zwaska, R. (2019). First measurement of neutrino oscillation parameters using neutrinos and antineutrinos by NOvA. Physical review letters, 123(15), Article 151803. https://doi.org/10.1103/PhysRevLett.123.151803

Acero, MA, 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, BA, Bashar, S, Bays, K, Bending, S, Bernstein, R, Bhatnagar, V, Bhuyan, B, Bian, J, Blackburn, T, Blair, J, Booth, AC, Bour, P, Bromberg, C, Buchanan, N, Butkevich, A, Calvez, S, Campbell, M, Carroll, TJ, Catano-Mur, E, Cedeno, A, Childress, S, Choudhary, BC, Chowdhury, B, Coan, TE, Colo, M, Cooper, J, Corwin, L, Cremonesi, L, Davies, GS, Derwent, PF, Ding, P, Djurcic, Z, Doyle, D, Dukes, EC, Duyang, H, Edayath, S, Ehrlich, R, Elkins, M, Feldman, GJ, Filip, P, Flanagan, W, Frank, MJ, Gallagher, HR, Gandrajula, R, Gao, F, Germani, S, Giri, A, Gomes, RA, Goodman, MC, 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, DM, Keloth, R, Klimov, O, Koerner, LW, Kolupaeva, L, Kotelnikov, S, Kourbanis, I, Kreymer, A, Kulenberg, C, Kumar, A, Kuruppu, CD, Kus, V, Lackey, T, Lang, K, Lin, S, Lokajicek, M, Lozier, J, Luchuk, S, Maan, K, Magill, S, Mann, WA, Marshak, ML, Martinez-Casales, M, Matveev, V, Méndez, DP, Messier, MD, Meyer, H, Miao, T, Miller, WH, Mishra, SR, Mislivec, A, Mohanta, R, Moren, A, Mualem, L, Muether, M, Mufson, S, Mulder, K, Murphy, R, Musser, J, Naples, D, Nayak, N, Nelson, JK, Nichol, R, Nikseresht, G, Niner, E, Norman, A, Nosek, T, Olshevskiy, A, Olson, T, Paley, J, Patterson, RB, Pawloski, G, Pershey, D, Petrova, O, Petti, R, Phan, DD, Plunkett, RK, Potukuchi, B, Principato, C, Psihas, F, Radovic, A, Raj, V, Rameika, RA, Rebel, B, Rojas, P, Ryabov, V, Samoylov, O, Sanchez, MC, Sánchez Falero, S, Seong, IS, 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, RL, Tapia Oregui, B, Tas, P, Thayyullathil, RB, 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, TK, Wetstein, M, While, M, Whittington, D, Wojcicki, SG, Wolcott, J, Yadav, N, Yallappa Dombara, A, Yonehara, K, Yu, S, Zadorozhnyy, S, Zalesak, J, Zamorano, B & Zwaska, R 2019, 'First measurement of neutrino oscillation parameters using neutrinos and antineutrinos by NOvA', Physical review letters, vol. 123, no. 15, 151803. https://doi.org/10.1103/PhysRevLett.123.151803

@article{16f779da84094e6588a4aef7ee6de139,

title = "First measurement of neutrino oscillation parameters using neutrinos and antineutrinos by NOvA",

abstract = "The NOvA experiment has seen a 4.4σ signal of {\=ν}e appearance in a 2 GeV {\=ν}μ 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 {\=ν}μ→{\=ν}e candidates with a background of 10.3 and 102 {\=ν}μ→{\=ν}μ 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.",

author = "Acero, {M. A.} and P. Adamson and L. Aliaga and T. Alion and V. Allakhverdian and S. Altakarli and N. Anfimov and A. Antoshkin and A. Aurisano and A. Back and C. Backhouse and M. Baird and N. Balashov and P. Baldi and Bambah, {B. A.} and S. Bashar and K. Bays and S. Bending and R. Bernstein and V. Bhatnagar and B. Bhuyan and J. Bian and T. Blackburn and J. Blair and Booth, {A. C.} and P. Bour and C. Bromberg and N. Buchanan and A. Butkevich and S. Calvez and M. Campbell and Carroll, {T. J.} and E. Catano-Mur and A. Cedeno and S. Childress and Choudhary, {B. C.} and B. Chowdhury and Coan, {T. E.} and M. Colo and J. Cooper and L. Corwin and L. Cremonesi and Davies, {G. S.} and Derwent, {P. F.} and P. Ding and Z. Djurcic and D. Doyle and Dukes, {E. C.} and H. Duyang and S. Edayath and R. Ehrlich and M. Elkins and Feldman, {G. J.} and P. Filip and W. Flanagan and Frank, {M. J.} and Gallagher, {H. R.} and R. Gandrajula and F. Gao and S. Germani and A. Giri and Gomes, {R. A.} and Goodman, {M. C.} and V. Grichine and M. Groh and R. Group and B. Guo and A. Habig and F. Hakl and J. Hartnell and R. Hatcher and A. Hatzikoutelis and K. Heller and J. Hewes and A. Himmel and A. Holin and B. Howard and J. Huang and J. Hylen and F. Jediny and C. Johnson and M. Judah and I. Kakorin and D. Kalra and Kaplan, {D. M.} and R. Keloth and O. Klimov and Koerner, {L. W.} and L. Kolupaeva and S. Kotelnikov and I. Kourbanis and A. Kreymer and Ch Kulenberg and A. Kumar and Kuruppu, {C. D.} and V. Kus and T. Lackey and K. Lang and S. Lin and M. Lokajicek and J. Lozier and S. Luchuk and K. Maan and S. Magill and Mann, {W. A.} and Marshak, {M. L.} and M. Martinez-Casales and V. Matveev and M{\'e}ndez, {D. P.} and Messier, {M. D.} and H. Meyer and T. Miao and Miller, {W. H.} and Mishra, {S. R.} and A. Mislivec and R. Mohanta and A. Moren and L. Mualem and M. Muether and S. Mufson and K. Mulder and R. Murphy and J. Musser and D. Naples and N. Nayak and Nelson, {J. K.} and R. Nichol and G. Nikseresht and E. Niner and A. Norman and T. Nosek and A. Olshevskiy and T. Olson and J. Paley and Patterson, {R. B.} and G. Pawloski and D. Pershey and O. Petrova and R. Petti and Phan, {D. D.} and Plunkett, {R. K.} and B. Potukuchi and C. Principato and F. Psihas and A. Radovic and V. Raj and Rameika, {R. A.} and B. Rebel and P. Rojas and V. Ryabov and O. Samoylov and Sanchez, {M. C.} and {S{\'a}nchez Falero}, S. and Seong, {I. S.} and P. Shanahan and A. Sheshukov and P. Singh and V. Singh and E. Smith and J. Smolik and P. Snopok and N. Solomey and E. Song and A. Sousa and K. Soustruznik and M. Strait and L. Suter and A. Sutton and Talaga, {R. L.} and {Tapia Oregui}, B. and P. Tas and Thayyullathil, {R. B.} and J. Thomas and E. Tiras and D. Torbunov and J. Tripathi and A. Tsaris and Y. Torun and J. Urheim and P. Vahle and J. Vasel and L. Vinton and P. Vokac and T. Vrba and M. Wallbank and B. Wang and Warburton, {T. K.} and M. Wetstein and M. While and D. Whittington and Wojcicki, {S. G.} and J. Wolcott and N. Yadav and {Yallappa Dombara}, A. and K. Yonehara and S. Yu and S. Zadorozhnyy and J. Zalesak and B. Zamorano and R. Zwaska",

note = "Publisher Copyright: {\textcopyright} 2019 authors. Published by the American Physical Society.",

year = "2019",

month = oct,

day = "11",

doi = "10.1103/PhysRevLett.123.151803",

language = "English (US)",

volume = "123",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "15",

}

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.

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

SN - 0031-9007

VL - 123

JO - Physical review letters

JF - Physical review letters

IS - 15

M1 - 151803

ER -

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

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