Status of global fits to neutrino oscillations

We review the present status of global analyses of neutrino oscillations, taking into account the most recent neutrino data including the latest KamLAND and K2K updates presented at Neutrino 2004, as well as state-of-the-art solar and atmospheric neutrino flux calculations. We give the two-neutrino solar + KamLAND results, and the two-neutrino atmospheric + K2K oscillation regions, discussing in each case the robustness of the oscillation interpretation against departures from the Standard Solar Model and the possible existence of non-standard neutrino physics. Furthermore, we give the best-fit values and allowed ranges of the three-flavour oscillation parameters from the current worlds' global neutrino data sample and discuss in detail the status of the small parameters α ≡ ΔmSOL2/ΔmATM2 as well as sin2 θ13, which characterize the strength of CP violating effects in neutrino oscillations. We also update the degree of rejection of four-neutrino interpretations of the LSND evidence in view of the most recent developments.

[1]  V. V. Gorbachev,et al.  Measurement of the solar neutrino capture rate with gallium metal. III:2002-2007 , 2009 .

[2]  T. Kajita,et al.  New calculation of the atmospheric neutrino flux in a three-dimensional scheme , 2004 .

[3]  T. Schwetz,et al.  Precision spectroscopy with reactor antineutrinos , 2004, hep-ph/0407026.

[4]  L. Lavoura,et al.  Lepton mixing angle $\theta_{13} = 0$ with a horizontal symmetry $D_4$ , 2004, hep-ph/0407112.

[5]  J. Valle,et al.  Supersymmetric origin of neutrino mass , 2004, hep-ph/0405015.

[6]  J. Valle,et al.  A simple analytic three-flavour description of the day night effect in the solar neutrino flux , 2004, hep-ph/0404083.

[7]  J. Bahcall,et al.  Solar models and solar neutrino oscillations , 2004, hep-ph/0404061.

[8]  C. Contaldi,et al.  Gravitational instability of de Sitter compactifications , 2004, hep-th/0403270.

[9]  M. Lindner,et al.  Prospects of accelerator and reactor neutrino oscillation experiments for the coming ten years , 2004, hep-ph/0403068.

[10]  Michel Howard Kevin,et al.  High sensitivity search for nu;e's from the sun and other sources at KamLAND. , 2004, Physical review letters.

[11]  M. Lindner,et al.  Series expansions for three-flavor neutrino oscillation probabilities in matter , 2004, hep-ph/0402175.

[12]  S. Kim,et al.  Limits on the neutrino magnetic moment using 1496 days of Super-Kamiokande-I solar neutrino data. , 2004, Physical review letters.

[13]  M. Pinsonneault,et al.  What do we (not) know theoretically about solar neutrino fluxes? , 2004, Physical review letters.

[14]  S. Kim,et al.  Precise measurement of the solar neutrino day-night and seasonal variation in Super-Kamiokande-I , 2004 .

[15]  S. Mohanty,et al.  Neutrino magnetic moments and photo-disintegration of deuterium , 2004, hep-ph/0401144.

[16]  G. J. Alner,et al.  Measurement of the L/E distributions of atmospheric ν in Soudan 2 and their interpretation as neutrino oscillations , 2003 .

[17]  Jeong-Hyuck Park,et al.  Superfield formalism for the one loop effective action and CP(N) model in three dimensions , 2003, hep-th/0312088.

[18]  M. Blennow,et al.  Day-night effect in solar neutrino oscillations with three flavors , 2003, hep-ph/0311098.

[19]  O. Miranda,et al.  Constraining the neutrino magnetic moment with antineutrinos from the sun. , 2003, Physical review letters.

[20]  C. Burgess,et al.  Cornering solar radiative-zone fluctuations with KamLAND and SNO salt , 2003, hep-ph/0310366.

[21]  J. Valle,et al.  Status of three-neutrino oscillations after the SNO-salt data , 2003, hep-ph/0309130.

[22]  A. Balantekin,et al.  Constraints on neutrino parameters from neutral-current solar neutrino measurements , 2003, hep-ph/0309079.

[23]  H. Nunokawa,et al.  Discriminating among Earth composition models using geo-antineutrinos , 2003, hep-ph/0308175.

[24]  K. Whisnant,et al.  PROGRESS IN THE PHYSICS OF MASSIVE NEUTRINOS , 2003, hep-ph/0308123.

[25]  T. Schwetz.  Variations on KamLAND: likelihood analysis and frequentist confidence regions , 2003, hep-ph/0308003.

[26]  J. Valle.  Neutrino masses twenty‐five years later , 2003, hep-ph/0307192.

[27]  T. Schwetz,et al.  Status of the CPT Violating Interpretations of the LSND Signal , 2003, hep-ph/0306226.

[28]  C. Burgess,et al.  Resonant origin for density fluctuations deep within the Sun: helioseismology and magneto-gravity waves , 2003, astro-ph/0304462.

[29]  T. Schwetz,et al.  Testing the statistical compatibility of independent data sets , 2003, hep-ph/0304176.

[30]  D. Lebrun,et al.  Limits on the neutrino magnetic moment from the MUNU experiment , 2003, hep-ex/0304011.

[31]  E. Lisi,et al.  Status of atmospheric neutrino(mu) neutrino(tau) oscillations and decoherence after the first K2K spectral data , 2003, hep-ph/0303064.

[32]  N. E. Booth,et al.  Improved limits on nu(e) emission from mu+ decay. , 2003, hep-ex/0302017.

[33]  M. Lissia,et al.  KamLAND, terrestrial heat sources and neutrino oscillations , 2003, hep-ph/0301042.

[34]  S. Kim,et al.  Search for v̄e from the Sun at Super-Kamiokande-I , 2002, hep-ex/0212067.

[35]  KamLAND-Zen Collaboration.  First results from KamLAND: evidence for reactor antineutrino disappearance. , 2002, Physical review letters.

[36]  J. Valle,et al.  Combining the first KamLAND results with solar neutrino data , 2002, hep-ph/0212129.

[37]  E. Lisi,et al.  Solar neutrino oscillation parameters after first KamLAND results , 2002, Physical Review D.

[38]  S. Kim,et al.  Indications of neutrino oscillation in a 250 km long-baseline experiment. , 2002, Physical review letters.

[39]  T. Weiler,et al.  Hidden sterile neutrino and the 2+2 sum rule , 2002, hep-ph/0209373.

[40]  C. Burgess,et al.  Large Mixing Angle Oscillations as a Probe of the Deep Solar Interior , 2002, hep-ph/0209094.

[41]  J. Valle,et al.  Constraining Majorana neutrino electromagnetic properties from the LMA-MSW solution of the solar neutrino problem , 2002, hep-ph/0208132.

[42]  J. Valle,et al.  Constraining neutrino oscillation parameters with current solar and atmospheric data , 2002, hep-ph/0207227.

[43]  A. Surdo.  Atmospheric neutrino oscillations in the MACRO experiment , 2002 .

[44]  A. McDonald,et al.  Solar neutrinos , 2002, astro-ph/0406253.

[45]  C. Cattadori.  Update of solar neutrino interaction rate measurements from GNO at LNGS , 2002 .

[46]  E. Lisi,et al.  Getting the most from the statistical analysis of solar neutrino oscillations , 2002, hep-ph/0206162.

[47]  The Super-Kamiokande Collaboration.  Determination of solar neutrino oscillation parameters using 1496 days of Super-Kamiokande-I data , 2002, hep-ex/0205075.

[48]  S. Mohanty,et al.  Bounds on neutrino magnetic moment tensor from solar neutrinos , 2002, hep-ph/0204305.

[49]  R. C. Allen,et al.  Direct evidence for neutrino flavor transformation from neutral-current interactions in the Sudbury Neutrino Observatory. , 2002, Physical review letters.

[50]  R. C. Allen,et al.  Measurement of day and night neutrino energy spectra at SNO and constraints on neutrino mixing parameters. , 2002, Physical review letters.

[51]  E. al.,et al.  Measurement of the Solar Neutrino Capture Rate by the Russian-American Gallium Solar Neutrino Experiment During One Half of the 22-Year Cycle of Solar Activity , 2002, astro-ph/0204245.

[52]  A. Mirizzi,et al.  Reexamining nonstandard interaction effects on supernova neutrino flavor oscillations , 2002, hep-ph/0202269.

[53]  M. Gonzalez-Garcia,et al.  Impact of two mass scale oscillations on the analysis of atmospheric and reactor neutrino data , 2002, hep-ph/0202218.

[54]  Y. Nir,et al.  Neutrino Masses and Mixing: Evidence and Implications , 2002, hep-ph/0202058.

[55]  J. Valle,et al.  Status of four-neutrino mass schemes: A global and unified approach to current neutrino oscillation data , 2001, hep-ph/0112103.

[56]  J. Valle,et al.  Probing neutrino nonstandard interactions with atmospheric neutrino data , 2001, hep-ph/0108043.

[57]  J. Valle,et al.  Cornering /(3+1) sterile neutrino schemes , 2001, hep-ph/0107150.

[58]  M. Gonzalez-Garcia,et al.  Solar and Atmospheric Four{Neutrino Oscillations , 2001, hep-ph/0105269.

[59]  M. Freund.  Analytic approximations for three neutrino oscillation parameters and probabilities in matter , 2001, hep-ph/0103300.

[60]  T. Schwetz,et al.  4-Neutrino mass schemes and the likelihood of (3+1)-mass spectra , 2001, hep-ph/0102252.

[61]  G. Galilei,et al.  Large µ → ande → transitions in short-baseline experiments? , 2001 .

[62]  E. al.,et al.  Science and technology of BOREXINO: A Real time detector for low-energy solar neutrinos , 2000, hep-ex/0012030.

[63]  J. Valle,et al.  Neutrino unification. , 2000, Physical review letters.

[64]  M. Pinsonneault,et al.  Solar Models: Current Epoch and Time Dependences, Neutrinos, and Helioseismological Properties , 2000, astro-ph/0010346.

[65]  H. Murayama,et al.  LSND, SN1987A, and CPT violation , 2000, hep-ph/0010178.

[66]  J. Valle,et al.  Global three-neutrino oscillation analysis of neutrino data , 2000, hep-ph/0009350.

[67]  W. Hampel,et al.  GNO solar neutrino observations: results for GNO I , 2000, hep-ex/0006034.

[68]  T. Schwetz,et al.  Elastic neutrino–electron scattering of solar neutrinos and potential effects of magnetic and electric dipole moments , 2000, hep-ph/0006028.

[69]  M. Grassi,et al.  Limits on neutrino oscillations from the CHOOZ experiment , 1999, hep-ex/9907037.

[70]  J. Beacom,et al.  Neutrino Magnetic Moments, Flavor Mixing, and the Super-Kamiokande Solar Data , 1999, hep-ph/9907383.

[71]  T. Schwetz,et al.  Four-neutrino mass spectra and the Super-Kamiokande atmospheric up-down asymmetry , 1999, hep-ph/9903454.

[72]  K. Whisnant,et al.  Variations on four-neutrino oscillations , 1998, hep-ph/9806328.

[73]  C. K. Lee,et al.  Measurement of the Solar Electron Neutrino Flux with the Homestake Chlorine Detector , 1998 .

[74]  H. Nunokawa,et al.  PULSAR VELOCITIES WITHOUT NEUTRINO MASS , 1998, astro-ph/9803002.

[75]  G. Fiorentini,et al.  Helioseismology, solar models and neutrino fluxes , 1997, astro-ph/9712174.

[76]  C. Burgess,et al.  Neutrino propagation through helioseismic waves , 1997, hep-ph/9707542.

[77]  L. Gosset,et al.  GALLEX solar neutrino observations: Results for GALLEX IV , 1996 .

[78]  C. Giunti,et al.  Neutrino mass spectrum from the results of neutrino oscillation experiments , 1996, hep-ph/9607372.

[79]  N. Okada,et al.  A Sterile neutrino scenario constrained by experiments and cosmology , 1996, hep-ph/9606411.

[80]  Rossi,et al.  Resonant conversion of massless neutrinos in supernovae. , 1996, Physical review. D, Particles and fields.

[81]  Balantekin,et al.  MSW effect in a fluctuating matter density. , 1996, Physical review. D, Particles and fields.

[82]  J. Valle,et al.  The effect of random matter density perturbations on the MSW solution to the solar neutrino problem , 1996, hep-ph/9602307.

[83]  J. Favier,et al.  Search for neutrino oscillations at 15, 40 and 95 meters from a nuclear power reactor at Bugey , 1995 .

[84]  A. Derbin.  Restriction on the magnetic dipole moment of reactor neutrinos , 1994 .

[85]  Caldwell,et al.  Neutrino mass explanations of solar and atmospheric neutrino deficits and hot dark matter. , 1993, Physical review. D, Particles and fields.

[86]  J. Valle,et al.  Reconciling dark matter, solar and atmospheric neutrinos , 1993, hep-ph/9302316.

[87]  J. Valle,et al.  RECONCILING DARK MATTER AND SOLAR NEUTRINOS , 1993 .

[88]  J. Valle,et al.  Leptonic CP violating asymmetries in Z0 decays , 1990 .

[89]  M. N. Rebelo,et al.  Leptonic CP violation with massless neutrinos , 1989 .

[90]  J. Valle,et al.  Fast decaying neutrinos and observable flavour violation in a new class of Majoron models , 1989 .

[91]  E. Akhmedov,et al.  Resonant Amplification of Neutrino Spin Rotation in Matter and the Solar Neutrino Problem , 1988 .

[92]  Lim,et al.  Resonant spin-flavor precession of solar and supernova neutrinos. , 1988, Physical review. D, Particles and fields.

[93]  K. Babu,et al.  Model of 'Calculable' Majorana Neutrino Masses , 1988 .

[94]  J. Bernabéu,et al.  Lepton flavour non-conservation at high energies in a superstring inspired standard model , 1987 .

[95]  J. Valle,et al.  Neutrino mass and baryon-number nonconservation in superstring models. , 1986, Physical review. D, Particles and fields.

[96]  A. Kyuldjiev.  Searching for Effects of Neutrino Magnetic Moments at Reactors and Accelerators , 1984 .

[97]  J. Valle,et al.  Fast invisible neutrino decays , 1984 .

[98]  J. Valle.  Fast neutrino decay in horizontal majoron models , 1983 .

[99]  T. Gaisser,et al.  Flux of atmospheric neutrinos. , 1983, Physical review. D, Particles and fields.

[100]  J. Valle,et al.  Neutrino decay and spontaneous violation of lepton number , 1982 .

[101]  M. Doi,et al.  CP violation in Majorana neutrinos , 1981 .

[102]  J. Valle,et al.  Majorana Neutrinos and Magnetic Fields , 1981 .

[103]  José W. F. Valle,et al.  Neutrino masses in SU(2) ⊗ U(1) theories , 1980 .

[104]  K. Fujikawa,et al.  Magnetic Moment of a Massive Neutrino and Neutrino-Spin Rotation , 1980 .

[105]  A. Zee.  A theory of lepton number violation and neutrino Majorana masses [Phys. Lett. 93b(1980)389] , 1980 .

[106]  A. Zee,et al.  A Theory of Lepton Number Violation, Neutrino Majorana Mass, and Oscillation , 1980 .

[107]  Lincoln Wolfenstein,et al.  Neutrino Oscillations in Matter , 1978 .

[108]  Hayes,et al.  Review of particle properties. , 1978, Physical review. D, Particles and fields.

[109]  K. Tennakone,et al.  Neutrinos of Nonzero Rest Mass , 1972 .

[110]  S. M. Bilenky,et al.  On the νe + e → νe + e process , 1970 .

[111]  Helmuth Spieler,et al.  Review of Particle Physics, 2008-2009 , 2000 .

[112]  S. Kim,et al.  Evidence for oscillation of atmospheric neutrinos , 1998 .

[113]  Raymond Davis,et al.  A review of the Homestake solar neutrino experiment , 1994 .

[114]  J. Valle.  Gauge theories and the physics of neutrino mass , 1991 .

[115]  A. Perelomov,et al.  Wess-Zumino lagrangians in chiral models and quantization of their constants , 1986 .

[116]  J. Valle,et al.  Erratum: Majorana neutrinos and magnetic fields , 1982 .

[117]  G. Senjanovic,et al.  Neutrino Masses and Mixings in Gauge Models with Spontaneous Parity Violation , 1981 .

[118]  J. Valle,et al.  Comment on the lepton mixing matrix , 1980 .