6533b854fe1ef96bd12ae1be

RESEARCH PRODUCT

Measurement of day and night neutrino energy spectra at SNO and constraints on neutrino mixing parameters

J. C. BartonR. L. HelmerR. L. HelmerMonica DunfordA. W. P. PoonM. BercovitchM. LayH. FerganiJ. J. SimpsonP. J. DoeP. J. DoeP. J. DoeC. J. VirtueJ. A. DunmoreR. W. OllerheadH. HeronR. U. HaqJ. LyonE. D. EarleE. D. EarleB. A. MoffatI. LevineT. J. RadcliffeG. T. EwanW. LockeJ. R. LeslieB. C. RobertsonA. P. FerrarisJ. X. WangV. L. RusuK. K. SchafferS. D. BillerA. S. HamerA. S. HamerB. T. ClevelandT. KutterR. Meijer DreesN. TaggN. TaggF. A. DuncanR. J. FordP. J. HarveyN. MccauleyN. MccauleyM. C.p. IsaacM. H. SchwendenerN. GagnonXin ChenXin ChenE. BonvinR. HazamaE. D. HallmanA. J. NobleA. J. NobleR. Van BergH. S. NgP. M. ThornewellT. D. SteigerW. J. HeintzelmanM. L. ChenA. RobergeK. McfarlaneP. T. TrentA. A. HamianD. F. CowenJ. LawC. J. SimsJoshua R. KleinJ. V. GermaniD. L. WarkD. L. WarkD. L. WarkR. G. Van De WaterR. G. Van De WaterN. StarinskyK. T. LeskoW. FratiQ. R. AhmadBhaskar SurBhaskar SurF. Dalnoki-veressT. V. BullardP. T. KeenerH. B. MakA. D. MarinoI. T. LawsonRichard T. KouzesAnett SchulkeJ. BiguR. J. BoardmanG. A. CoxE. W. BeierM. G. BowlerJ. HeiseJ. HeiseC. K. HargroveG. McgregorS. LuomaJ. BogerY. I. TserkovnyakR. G. StokstadN.w. TannerD. S. McdonaldA. B. McdonaldA. B. McdonaldM. ShatkayL. C. StonehillJ. K. RowleyM. O'neillS. S.e. RosendahlG. G. MillerH. W. LeeV. M. NovikovC. W. NallyChristopher C. M. KybaAlan R. SmithM. MoorheadG. JonkmansG. JonkmansE. SaettlerS. MajerusJ. CameronH. SeifertH. SeifertH. SeifertHerbert H. ChenG. BühlerJ. M. WoutersE. T.h. CliffordP. JagamC. E. OkadaJ. D. HepburnM. A. HoweDavid A. SinclairDavid A. SinclairYuen-dat ChanK. GrahamJ. HewettS. M. OserA. L. HallinAndrew HimeJ. ManorC. MifflinJ. H.m. CowanJ. ManeiraI. BlevisR. L. HahnSalvador GilG. DoucasM. OmoriM.g. BoulayM.g. BoulayC. JillingsJ. F. WilkersonJ. F. WilkersonEric B. NormanJ. R. WilsonK. FrameReda TafiroutDarren GrantA. B. KnoxC. A. DubaK. M. HeegerHal EvansJohn L. OrrellW. F. DavidsonJ. FarineJ. FarineR. A. BlackW. B. HandlerJoseph A. FormaggioMinfang YehN. A. JelleyN. WestM. ThormanM. W.e. SmithM. M. FowlerM. C. BrowneM. C. BrowneSteven ElliottSteven ElliottT. C. AndersenE.d. FrankR. S. StoreyJ. G. HykawyR. J. KomarR. C. AllenP. SkensvedR. K. TaplinT. J. BowlesX. DaiMark NeubauerChris WalthamG. MiltonR. G. H. RobertsonR. G. H. RobertsonT. SpreitzerF.m. NewcomerJ. D. AnglinS. J. BriceS. J. BricePeter WittichJ. B. WilhelmyM. R. DragowskyM. R. DragowskyK. Kazkaz

subject

Astrophysics::High Energy Astrophysical PhenomenaSolar neutrinoFOS: Physical sciencesGeneral Physics and AstronomyFluxCosmic rayAstrophysics7. Clean energy01 natural sciencesHigh Energy Physics - ExperimentNuclear physicsHigh Energy Physics - Experiment (hep-ex)0103 physical sciencesNuclear astrophysicsNuclear Experiment (nucl-ex)010306 general physicsNeutrino oscillationNuclear ExperimentAstrophysics::Galaxy AstrophysicsCharged currentPhysicsSudbury Neutrino Observatory010308 nuclear & particles physicsAstrophysics (astro-ph)High Energy Physics::Phenomenology13. Climate actionHigh Energy Physics::ExperimentAstrophysics::Earth and Planetary AstrophysicsNeutrino

description

The Sudbury Neutrino Observatory (SNO) has measured day and night solar neutrino energy spectra and rates. For charged current events, assuming an undistorted $^8$B spectrum, the night minus day rate is $14.0% \pm 6.3% ^{+1.5}_{-1.4}%$ of the average rate. If the total flux of active neutrinos is additionally constrained to have no asymmetry, the $\nu_e$ asymmetry is found to be $7.0% \pm 4.9% ^{+1.3}_{-1.2}%$. A global solar neutrino analysis in terms of matter-enhanced oscillations of two active flavors strongly favors the Large Mixing Angle (LMA) solution.

https://hal.science/hal-00451453