Statistical treatment of detection cross-section uncertainties in the analysis of solar neutrino data
نویسنده
چکیده
We propose a modification to the standard statistical treatment of the detection cross-section uncertainties in the analysis of solar neutrino data. We argue that the uncertainties of the energy-averaged cross sections of the different neutrino fluxes in the same experiment should be treated as correlated. We show that the resulting allowed regions for the neutrino oscillation parameters are significantly larger than the ones obtained with uncorrelated uncertainties. PACS numbers: 26.65.+t, 14.60.Pq, 14.60.Lm Typeset using REVTEX
منابع مشابه
Solutions to the Solar Neutrino Anomaly
We present an updated analysis of astrophysical solutions, two-flavor MSW solutions, and vacuum oscillation solutions to the solar neutrino anomaly. The recent results of each of the five solar neutrino experiments are incorporated, including both the zenith angle (day-night) and spectral information from the Kamiokande experiment, and the preliminary SuperKamiokande results. New theoretical de...
متن کاملar X iv : n uc l - th / 9 81 00 24 v 1 9 O ct 1 99 8 1 Uncertainties in the Solar Neutrino Flux
I discuss three issues relevant to solar neutrino flux measurements: cross section uncertainties in pp chain reactions, uncertainties in the GALLEX/SAGE response to 7 Be and 51 Cr neutrinos, and the implications of helioseismology for nonstandard suns with mixed cores. A few comments are also offered on νe ↔ ντ oscillations, cosmologically interesting neutrino masses, and recent proposals for s...
متن کاملar X iv : a st ro - p h / 04 02 11 4 v 2 26 M ar 2 00 4 What do we ( not ) know theoretically about solar neutrino fluxes ?
Solar model predictions of B and p-p neutrinos agree with the experimentally-determined fluxes (including oscillations): φ(pp)measured = (1.02±0.02±0.01)φ(pp)theory, and φ( B)measured = (0.88± 0.04±0.23)φ(B)theory, 1σ experimental and theoretical uncertainties, respectively. We use improved input data for nuclear fusion reactions, the equation of state, and the chemical composition of the Sun. ...
متن کاملStandard neutrino spectrum from 8B decay.
We present a systematic evaluation of the shape of the neutrino energy spectrum produced by beta decay of B. We place special emphasis on determining the range of uncertainties permitted by existing laboratory data and theoretical ingredients ~such as forbidden and radiative corrections!. We review and compare the available experimental data on the B(b)Be(2a) decay chain. We analyze the theoret...
متن کاملStandard solar model uncertainties and their correlations in the analysis of the solar neutrino problem
We present here an analysis of the theoretical uncertainties associated to the predicted solar neutrino rates for the current gallium, chlorine and water-Cherenkov experiments. We estimate the theoretical rates and their error matrices in three independent solar models (proposed by Bahcall and Pinsonneault, Turck-Chi eze and Lopes, and Dar and Shaviv), and compare them to the experimental data....
متن کامل