Measurement of the ν_e and Total ⁸B Solar Neutrino Fluxes with the Sudbury Neutrino Observatory Phase-III Data Set

B. Aharmim , S.N. Ahmed , J.F. Amsbaugh , J.M. Anaya , A.E. Anthony , J. Banar , N. Barros , E.W. Beier

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A. Bellerive B. Beltran M. Bergevin S.D. Biller K. Boudjemline M.G. Boulay T.J. Bowles M.C. Browne T.V. Bullard T.H. Burritt B. Cai Y.D. Chan D. Chauhan M. Chen B.T. Cleveland G.A. Cox C.A. Currat X. Dai H. Deng J.A. Detwiler M. DiMarco P.J. Doe G. Doucas M.R. Dragowsky P.-L. Drouin C.A. Duba F.A. Duncan M. Dunford E.D. Earle S.R. Elliott H.C. Evans G.T. Ewan J. Farine H. Fergani F. Fleurot R.J. Ford J.A. Formaggio M.M. Fowler N. Gagnon J.V. Germani A. Goldschmidt J.TM. Goon K. Graham E. Guillian S. Habib R.L. Hahn A.L. Hallin E.D. Hallman A.A. Hamian G.C. Harper P.J. Harvey R. Hazama K.M. Heeger W.J. Heintzelman J. Heise R.L. Helmer R. Henning A. Hime C. Howard M.A. Howe M. Huang P. Jagam B. Jamieson N.A. Jelley K.J. Keeter J.R. Klein L.L. Kormos M. Kos A. Krueger C. Kraus C.B. Krauss T. Kutter C.C.M. Kyba R. Lange J. Law I.T. Lawson K.T. Lesko J.R. Leslie J.C. Loach R. MacLellan S. Majerus H.B. Mak J. Maneira R. Martin N. McCauley A.B. McDonald S.R. McGee C. Mifflin G.G. Miller M.L. Miller B. Monreal J. Monroe B. Morissette A.W. Myers B.G. Nickel A.J. Noble H.M. O'Keeffe N.S. Oblath R.W. Ollerhead G.D. Orebi Gann S.M. Oser R.A. Ott S.J.M. Peeters A.W.P. Poon G. Prior S.D. Reitzner K. Rielage B.C. Robertson R.G.H. Robertson E. Rollin M.H. Schwendener J.A. Secrest S.R. Seibert O. Simard J.J. Simpson P. Skensved M.W.E. Smith T.J. Sonley T.D. Steiger L.C. Stonehill G. Tesic P.M. Thornewell N. Tolich T. Tsui C.D. Tunnell T. Van Wechel R. Van Berg B.A. VanDevender C.J. Virtue B.L. Wall D. Waller H. Wan Chan Tseung J. Wendland N. West J.B. Wilhelmy J.F. Wilkerson J.R. Wilson J.M. Wouters A. Wright M. Yeh F. Zhang K. Zuber

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classification ⚛️ nucl-ex astro-ph.SRhep-ex

keywords neutrinosolartotalactiveanalysisdatafluxobservatory

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This paper details the solar neutrino analysis of the 385.17-day Phase-III data set acquired by the Sudbury Neutrino Observatory (SNO). An array of $^3$He proportional counters was installed in the heavy-water target to measure precisely the rate of neutrino-deuteron neutral-current interactions. This technique to determine the total active $^8$B solar neutrino flux was largely independent of the methods employed in previous phases. The total flux of active neutrinos was measured to be $5.54^{+0.33}_{-0.31}(stat.)^{+0.36}_{-0.34}(syst.)\times 10^{6}$ cm$^{-2}$ s$^{-1}$, consistent with previous measurements and standard solar models. A global analysis of solar and reactor neutrino mixing parameters yielded the best-fit values of $\Delta m^2 = 7.59^{+0.19}_{-0.21}\times 10^{-5}{eV}^2$ and $\theta = 34.4^{+1.3}_{-1.2}$ degrees.

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Measurement of the ν_e and Total ⁸B Solar Neutrino Fluxes with the Sudbury Neutrino Observatory Phase-III Data Set

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