Screening vector field modifications of general relativity

Beltran Jimenez, Jose;Delvas Fróes, André Luís;Mota, David F.
(2013) Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics — Vol. 725, n° 4-5, p. 212-217 (2013)

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Authors
  • Beltran Jimenez, JoseUCLouvain
    Author
  • Delvas Fróes, André LuísInstitute for Theoretical Astrophysics, University of Oslo
    Author
  • Mota, David F.Institute for Theoretical Astrophysics, University of Oslo
    Author
Abstract
A screening mechanism for conformal vector-tensor modifications of general relativity is proposed. The conformal factor depends on the norm of the vector field and makes the field to vanish in high dense regions, whereas drives it to a non-null value in low density environments. Such process occurs due to a spontaneous symmetry breaking mechanism and gives rise to both the screening of fifth forces as well as Lorentz violations. The cosmology and local constraints are also computed. © 2013 Elsevier B.V.
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Beltran Jimenez, J., Delvas Fróes, A. L., & Mota, D. F. (2013). Screening vector field modifications of general relativity. Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, 725(4-5), 212-217. https://doi.org/10.1016/j.physletb.2013.07.032 (Original work published 2013)