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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Updated T2K measurements of muon neutrino and antineutrino disappearance using 1.5 x10 21 protons on target
AU - Abe, K.
AU - Amey, J.
AU - Andreopoulos, C.
AU - Antonova, M.
AU - Aoki, S.
AU - Ariga, A.
AU - Ashida, Y.
AU - Autiero, D.
AU - Ban, S.
AU - Barbi, M.
AU - Barker, G. J.
AU - Barr, G.
AU - Barry, C.
AU - Bartet-Friburg, P.
AU - Batkiewicz, M.
AU - Berardi, V.
AU - Berkman, S.
AU - Bhadra, S.
AU - Bienstock, S.
AU - Blondel, A.
AU - Bolognesi, S.
AU - Bordoni, S.
AU - Brailsford, D.
AU - Bravar, A.
AU - Bronner, C.
AU - Avanzini, M. Buizza
AU - Calland, R. G.
AU - Campbell, T.
AU - Cao, S.
AU - Catanesi, M. G.
AU - Cervera, A.
AU - Chappell, A.
AU - Checchia, C.
AU - Cherdack, D.
AU - Chikuma, N.
AU - Christodoulou, G.
AU - Coleman, J.
AU - Collazuol, G.
AU - Coplowe, D.
AU - Dealtry, T.
AU - Finch, A. J.
AU - Knox, A.
AU - Kormos, L. L.
AU - Lamont, I.
AU - Lawe, M.
AU - Nowak, J.
AU - O'Keeffe, H. M.
AU - Ratoff, P. N.
AU - Shaw, D.
AU - Southwell, L.
AU - T2K Collaboration
PY - 2017/7/31
Y1 - 2017/7/31
N2 - We report measurements by the T2K experiment of the parameters $\theta_{23}$ and $\Delta m^{2}_{32}$ governing the disappearance of muon neutrinos and antineutrinos in the three flavor neutrino oscillation model. Utilizing the ability of the experiment to run with either a mainly neutrino or a mainly antineutrino beam, the parameters are measured separately for neutrinos and antineutrinos. Using $7.482 \times 10^{20}$ POT in neutrino running mode and $7.471 \times 10^{20}$ POT in antineutrino mode, T2K obtained, $\sin^{2}(\theta_{23})=0.51^{+0.08}_{-0.07}$ and $\Delta m^{2}_{32} = 2.53^{+0.15}_{-0.13} \times 10^{-3}$eV$^{2}$/c$^{4}$ for neutrinos, and $\sin^{2}({\overline{\theta}}_{23})=0.42^{+0.25}_{-0.07}$ and ${\Delta\overline{m}^2}_{32} = 2.55^{+0.33}_{-0.27} \times 10^{-3}$eV$^{2}$/c$^{4}$ for antineutrinos (assuming normal mass ordering). No significant differences between the values of the parameters describing the disappearance of muon neutrinos and antineutrinos were observed.
AB - We report measurements by the T2K experiment of the parameters $\theta_{23}$ and $\Delta m^{2}_{32}$ governing the disappearance of muon neutrinos and antineutrinos in the three flavor neutrino oscillation model. Utilizing the ability of the experiment to run with either a mainly neutrino or a mainly antineutrino beam, the parameters are measured separately for neutrinos and antineutrinos. Using $7.482 \times 10^{20}$ POT in neutrino running mode and $7.471 \times 10^{20}$ POT in antineutrino mode, T2K obtained, $\sin^{2}(\theta_{23})=0.51^{+0.08}_{-0.07}$ and $\Delta m^{2}_{32} = 2.53^{+0.15}_{-0.13} \times 10^{-3}$eV$^{2}$/c$^{4}$ for neutrinos, and $\sin^{2}({\overline{\theta}}_{23})=0.42^{+0.25}_{-0.07}$ and ${\Delta\overline{m}^2}_{32} = 2.55^{+0.33}_{-0.27} \times 10^{-3}$eV$^{2}$/c$^{4}$ for antineutrinos (assuming normal mass ordering). No significant differences between the values of the parameters describing the disappearance of muon neutrinos and antineutrinos were observed.
U2 - 10.1103/PhysRevD.96.011102
DO - 10.1103/PhysRevD.96.011102
M3 - Journal article
VL - 96
JO - Physical Review D
JF - Physical Review D
SN - 1550-7998
IS - 1
M1 - 011102(R)
ER -