Do Statistically Significant Correlations Exist between the Homestake Solar Neutrino Data and Sunspots?
نویسندگان
چکیده
منابع مشابه
Do Statistically Significant Correlations Exist between the Homestake Solar Neutrino Data and Sunspots ?
It has been suggested by various authors that a significant anticorrelation exists between the Homestake solar neutrino data and the sunspot cycle. Some of these claims rest on smoothing the data by taking running averages, a method that has recently undergone criticism. We demonstrate that no significant anticorrelation can be found in the Homestake data, or in standard 2-and 4-point averages ...
متن کاملSearch for Periodicities in the Homestake Solar Neutrino Data
We evaluate a s2 statistic to test against the Homestake data the hypothesis that the neutrino Ñux from the Sun is constant. We use estimates of standard deviations derived 1000 simulations of the sequence of 108 runs, and we also use two procedures for deriving proxies for the standard deviation from the experimental data. All tests indicate that the hypothesis should be rejected ; the signiÐc...
متن کاملHomestake result, Sterile neutrinos and Low energy solar neutrino experiments
The large mixing (LMA) MSW solution predicts ∼ 2σ higher Ar-production rate, QAr, than the Homestake result. Also there is no apparent upturn of the spectrum (R ≡ Nobs/NSSM ) at low energies in SNO and Super-Kamiokande (SK). Both these facts can be explained if a light, ∆m201 ∼ (2 − 20) · 10 eV, sterile neutrino exists which mixes very weakly with active neutrinos: sin 2α ∼ (10 − 10). We perfor...
متن کاملOn the Solar-cycle Modulation of the Homestake Solar Neutrino Capture Rate and the Shuffle Test
There exists no signiÐcant correlation between the Homestake neutrino data up to run 133 and the monthly sunspot number, according to a test that is based on certain optimality properties for this type of problem. It is argued that priorly reported highly signiÐcant results for segments of the data are due to a statistical fallacy : the usual methods for evaluating the signiÐcance of common tes...
متن کاملWavelet Analysis of the New Solar Neutrino Capture Rate Data for the Homestake Experiment
Wavelet analysis offers an alternative to Fourier based time-series analysis and is particularly useful when spectral features are time dependent. We analyze the solar neutrino capture rate of the radiochemical Homestake chlorine experiment with abbreviated Morlet wavelets, using Foster’s (AJ, 111,1709(1996)) rescaled wavelet technique. We emphasize the complementarity of wavelet analysis to Fo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2000
ISSN: 0004-637X,1538-4357
DOI: 10.1086/309069