Global Three-neutrino Vacuum Oscillation Fits to the Solar and Atmospheric Anomalies
نویسندگان
چکیده
We determine the three-neutrino mixing and mass parameters that are allowed by the solar and atmospheric neutrino data when vacuum oscillations are responsible for both phenomena. The global fit does not appreciably change the allowed regions for the parameters obtained from effective twoneutrino fits. We discuss how measurements of the solar electron energy spectrum below 6.5 GeV in Super-Kamiokande and seasonal variations in the Super-Kamiokande, Ga, and BOREXINO experiments can distinguish the different solar vacuum solutions.
منابع مشابه
GLOBAL THREE–NEUTRINO VACUUM OSCILLATION FITS TO THE SOLAR AND ATMOSPHERIC ANOMALIES V. Barger and K. Whisnant
We determine the three–neutrino mixing and mass parameters that are allowed by the solar and atmospheric neutrino data when vacuum oscillations are responsible for both phenomena. The global fit does not appreciably change the allowed regions for the parameters obtained from effective two–neutrino fits. We discuss how measurements of the solar electron energy spectrum below 6.5 GeV in Super–Kam...
متن کاملTexture of a Four–Neutrino Mass Matrix
We propose a simple texture of the neutrino mass matrix with one sterile neutrino along with the three standard ones. It gives maximal mixing angles for νe → νS and νμ → ντ oscillations or vice versa. Thus with only four parameters, this mass matrix can explain the solar neutrino anomaly, atmospheric neutrino anomaly, LSND result and the hot dark matter of the universe, while satisfying all oth...
متن کاملStatus 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 Neutrino2004, 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...
متن کاملTri-bimaximal and bimaximal neutrino mixing from discrete sym- metries
— The neutrino oscillation data are well explained by the tri-bimaximal pattern. Recently it has been shown that also the bimaximal pattern could be a very good starting point in order to describe the lepton mixing. In this paper I review both the flavour structures and then I present an explicit example. 1. – The lepton mixing matrix The solar and the atmospheric neutrino anomalies are well ex...
متن کاملSolar and Atmospheric Neutrino Oscillations from Bilinear R-Parity Violation
We discuss general predictions for neutrino masses and mixing angles from R parity violation in the Minimal Supersymmetric Standard Model. If the soft supersymmetry breaking terms are flavor blind at short distance, then the leptonic analogue of the CKM matrix depends on only two real parameters, which are completely determined by fits to solar and atmospheric neutrino oscillations. Either the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1999