Model Independent Constraints on Solar Neutrinos

Abstract

Using the data from SNO NCD phase, SuperK, Borexino and KamLAND Solar phase, we derive in a model independent way, bounds on the possible components in the solar neutrino flux. We update the limits on the antineutrino (${\bar{\nu }}_x$) flux and sterile (${\nu }_s$) component and compare them with the previous results obtained using SNO Salt phase data and data from SuperKamiokande experiments. It is affirmed that the upper bound on ${\bar{\nu }}_x$ is independent of the ${\nu }_s$ component. We recover the ${\nu }_s$ and ${\bar{\nu }}_x$ upper bounds existing in the literature. We also obtain bounds on $f_B$, the SSM normalization factor and the common parameter range for $f_B$ and the ${\nu }_s$ components in the light of latest data. In summary, we update, in a model independent way, the previous results existing in literature in the light of latest solar neutrino data.

21 pages, 3 figures and 13 tables

References in corpus (2)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Searches for sterile component with solar neutrinos and KamLAND