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Title: Reviving the energy independent suppression of the solar neutrino flux
Authors: Choubey, Sandhya
Goswami, Srubabati
Gupta, Nayantara
Roy, D.P.
Keywords: Neutrino mass and mixing
Decays of heavy neutrinos
Solar neutrinos
Issue Date: Sep-2001
Publisher: The American Physical Society
Citation: Physical Review D, 2001, Vol.64, p053002
Abstract: We explore the possibility of an energy independent suppression of the solar neutrino flux in the context of the recent SuperKamiokande data. From a global analysis of the rate and spectrum data, this scenario is allowed at only 14% probability with the observed Cl rate. If we allow for a 20% upward renormalization of the Cl rate along with a downward renormalization of the B neutrino flux then the fit improves considerably to a probability of ~50%. We compare the quality of these fits with those of the MSW solutions. These renormalizations are also found to improve the quality of the fits with MSW solutions and enlarge the allowed region of their validity in the parameter space substantially. Over much of this enlarged region the matter effects on the suppression of the solar neutrino flux are found to be very weak, so that the solutions become practically energy independent.
Description: Restricted Access. An open-access version is available at (one of the alternative locations)
ISSN: 1550-7998
1550-2368 (Online)
Alternative Location: 10.1103/PhysRevD.64.053002
Copyright: 2001 The American Physical Society
Appears in Collections:Research Papers (A&A)

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