Torsion braneworlds in a tensor-vector gravity
arXiv:1906.00337 · doi:10.1142/S0218271822500304
Abstract
We study the properties of gravity and bulk fields living in a torsion warped braneworld. The torsion is driven by a background vector whose norm provides a source for the bulk cosmological constant. For a vector as the derivative of a scalar field, we find new isotropic and anisotropic thick brane geometries. We analyse the features of bosonic and fermionic fields in this isotropic and in standing wave scenarios. The background vector provides nonminimal coupling between the field and the geometry leading to modifications in the Kaluza-Klein states. The spinor connection is modified by the torsion and a derivative Yukawa-like coupling is proposed. The effects of these new couplings are investigated.
arXiv comment19 pages, 12 figures. Modified text to match the accepted version in International Journal of Modern Physics D
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