0000000000773662

AUTHOR

V. Sipiläinen

showing 2 related works from this author

Neutrinos confronting large extra dimensions

2001

We study neutrino physics in a model with one large extra dimension. We assume the existence of two four-dimensional branes in the five-dimensional space-time, one for the ordinary particles and the other one for mirror particles, and we investigate neutrino masses and mixings in this scheme. Comparison of experimental neutrino data with the predictions of the model leads to various restrictions on the parameters of the model. For instance, the size of the extra dimension, R, turns out to be bounded from below. Cosmological considerations seem to favor a large R. The usual mixing schemes proposed as solutions to the solar and atmospheric neutrino anomalies are compatible with our model.

PhysicsHigh Energy Physics - PhenomenologyNuclear and High Energy PhysicsParticle physicsHigh Energy Physics - Phenomenology (hep-ph)Dimension (vector space)Bounded functionBrane cosmologyFOS: Physical sciencesLarge extra dimensionNeutrinoAtmospheric neutrinoMixing (physics)Physics Letters B
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A scheme with two large extra dimensions confronted with neutrino physics

2003

We investigate a particle physics model in a six-dimensional spacetime, where two extra dimensions form a torus. Particles with Standard Model charges are confined by interactions with a scalar field to four four-dimensional branes, two vortices accommodating ordinary type fermions and two antivortices accommodating mirror fermions. We investigate the phenomenological implications of this multibrane structure by confronting the model with neutrino physics data.

PhysicsNuclear and High Energy PhysicsParticle physicsSpacetimeFOS: Physical sciencesFermionStandard ModelExtra dimensionsHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Brane cosmologyLarge extra dimensionNeutrinoScalar field
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