Comparative analysis of Gallex and GNO solar neutrino data
arXiv:hep-ph/0409064 · doi:10.1016/j.astropartphys.2006.06.001
Abstract
Since the GALLEX and GNO datasets were derived from closely related experiments, there is a natural tendency to merge them. This is perhaps appropriate for any analysis based on the hypothesis that the solar neutrino flux is constant, but it is not necessarily appropriate for an analysis that allows for possible variability, since the GALLEX and GNO experiments belong to different solar cycles. Moreover, we find significant differences between the GALLEX and GNO datasets. It appears, from inspection of the time series and histograms, that GNO measurements are compatible with the assumption that the solar neutrino flux is constant, but GALLEX measurements are not. Furthermore, power-spectrum analysis yields evidence of rotational modulation in GALLEX data but not in GNO data. We compare our results with those of Pandola, who claims that GALLEX-GNO data show no evidence for variability.
arXiv comment20 pages plus 6 tables plus 11 figures
References in corpus (16)
- First Results from KamLAND: Evidence for Reactor Anti-Neutrino Disappearance
- Solar 8B and hep Neutrino Measurements from 1258 Days of Super-Kamiokande Data
- Determination of Solar Neutrino Oscillation Parameters using 1496 Days of Super-Kamiokande-I Data
- GNO Solar Neutrino Observations: Results for GNOI
- Complete results for five years of GNO solar neutrino observations
- A search for periodic modulations of the solar neutrino flux in Super-Kamiokande-I
- Rotational Signature and Possible R-Mode Signature in the GALLEX Solar Neutrino Data
- Power-Spectrum Analyses of Super-Kamiokande Solar Neutrino Data: Variability and its Implications for Solar Physics and Neutrino Physics
- Histogram Analysis of Gallex, GNO and Sage Neutrino Data: Further Evidence for Variability of the Solar Neutrino Flux
- Comparative Analysis of GALLEX-GNO Solar Neutrino Data and SOHO/MDI Helioseismology Data; Further Evidence for Rotational Modulation of the Solar Neutrino Flux
- Analysis of Super-Kamiokande 5-day Measurements of the Solar Neutrino Flux
- Time-Series Analysis of Super-Kamiokande Measurements of the Solar Neutrino Flux
- Combined and Comparative Analysis of Power Spectra
- Evidence for Solar Neutrino Flux Variability and its Implications
- LMA and sterile neutrinos: a case for resonance spin flavour precession?
- Search for time modulations in the Gallex/GNO solar neutrino data
Cited by in corpus (14)
- Neutrino Oscillations as a Probe of Light Scalar Dark Matter
- Empirical evidences for a planetary modulation of total solar irradiance and the TSI signature of the 1.09-year Earth-Jupiter conjunction cycle
- Concerning the Phase of the Time-Variation in the Cl-36 Decay Rate
- Low Energy Solar Neutrinos and Spin Flavour Precession
- A search for evidence of solar rotation in Super-Kamiokande solar neutrino dataset
- Further Evidence Suggestive of a Solar Influence on Nuclear Decay Rates
- Combined analysis of solar neutrino and solar irradiance data: further evidence for variability of the solar neutrino flux and its implications concerning the solar core
- Solar neutrino variability and its implications for solar physics and neutrino physics
- Evidence for R-Mode Oscillations in Super-Kamiokande Solar Neutrino Data
- Light sterile neutrinos, spin flavour precession and the solar neutrino experiments
- Analysis of bimodality in histograms formed from GALLEX and GNO solar neutrino data
- Neutrino Signal Variation in KamLAND
- Comparative Analysis of Super-Kamiokande and SNO Solar-Neutrino Data and the Photospheric Magnetic Field
- Remaining inconsistencies with solar neutrinos: can spin flavour precession provide a clue?