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The simplest resonant spin-flavour solution to the solar neutrino problem

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The simplest resonant spin-flavour 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	2014-08-06T09:14:33Z
dc.date.available	2014-08-06T09:14:33Z
dc.date.issued	2001
dc.identifier.citation	Furtado Valle, José Wagner Peña Garay, Carlos 2001 The simplest resonant spin-flavour solution to the solar neutrino problem Nuclear Physics B 595 1-2 360 380
dc.identifier.uri	http://hdl.handle.net/10550/37369
dc.description.abstract	We re-analyse the resonant spin-flavour (RSF) solutions to the solar neutrino problem in the framework of analytic solutions to the solar magneto-hydrodynamics (MHD) equations. By substantially eliminating the arbitrariness associated to the magnetic field profile due to both mathematical consistency and physical requirements we propose the simplest scheme (MHD-RSF, for short) for solar neutrino conversion using realistic static MHD solutions. Using such effective two-parameter scheme we perform the first global fit of the recent solar neutrino data, including event rates as well as zenith angle distributions and recoil electron spectra induced by solar neutrino interactions in SuperKamiokande. We compare quantitatively our simplest MHD-RSF fit with vacuum oscillation (VAC) and MSW-type (SMA, LMA and LOW) solutions to the solar neutrino problem using a common well-calibrated theoretical calculation and fit procedure. We find our MHD-RSF fit to be somewhat better than those obtained for the favored neutrino oscillation solutions, though not in a statistically significant way with Deltam(2) approximate to 10(-8) eV(2) and sin(2) 2 theta = 0. We briefly discuss the prospects to disentangle our MHD-RSF scenario from oscillation-type solutions to the solar neutrino problem at future solar neutrino experiments, giving some predictions for the SNO experiment.
dc.language.iso	eng
dc.relation.ispartof	Nuclear Physics B, 2001, vol. 595, num. 1-2, p. 360-380
dc.subject	Partícules (Física nuclear)
dc.title	The simplest resonant spin-flavour solution to the solar neutrino problem
dc.type	journal article	es_ES
dc.date.updated	2014-08-06T09:14:34Z
dc.identifier.doi	10.1016/S0550-3213(00)00546-0
dc.identifier.idgrec	031794
dc.rights.accessRights	open access	es_ES