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A non-resonant dark-side solution to the solar neutrino problem

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A non-resonant dark-side solution to the solar neutrino problem

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dc.contributor.author	Furtado Valle, José Wagner
dc.contributor.author	Peña Garay, Carlos
dc.contributor.author	Miranda, O.G.
dc.contributor.author	Rashba, Timur I.
dc.contributor.author	Semikoz, Victor B.
dc.date.accessioned	2014-08-06T08:58:28Z
dc.date.available	2014-08-06T08:58:28Z
dc.date.issued	2001
dc.identifier.citation	Furtado Valle, José Wagner Peña Garay, Carlos 2001 A non-resonant dark-side solution to the solar neutrino problem Physics Letters B 521 3-4 299 307
dc.identifier.uri	http://hdl.handle.net/10550/37367
dc.description.abstract	We reanalyse spin-flavour precession solutions to the solar neutrino problem in the light of the recent SNO CC result as well as the 1258-day Super-Kamiokande data and the upper limit on solar anti-neutrinos. In a self-consistent magnetohydrodynamics approach the resulting scheme has only 3 effective parameters: Deltam(2), muB(perpendicular to) and the neutrino mixing angle theta. We show how a rates-only analysis for fixed muB(perpendicular to) slightly favours spin-flavour precession (SFP) solutions over oscillations (OSC). In addition to the resonant solution (RSFP for short), there is a new non-resonant solution (NRSFP) in the 'dark-side'. Both RSFP and NRSFP lead to flat recoil energy spectra in excellent agreement with the latest Super-Kamiokande data. We also show that in the presence of a neutrino transition magnetic moment of 10-(11) Bohr magneton, a magnetic field of 80 KGauss eliminates all large mixing solutions other than the so-called LMA solution.
dc.language.iso	eng
dc.relation.ispartof	Physics Letters B, 2001, vol. 521, num. 3-4, p. 299-307
dc.subject	Cosmologia
dc.subject	Partícules (Física nuclear)
dc.title	A non-resonant dark-side solution to the solar neutrino problem
dc.type	journal article	es_ES
dc.date.updated	2014-08-06T08:58:29Z
dc.identifier.doi	10.1016/S0370-2693(01)01231-X
dc.identifier.idgrec	031783
dc.rights.accessRights	open access	es_ES