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Status: Unchecked ×Keyword: cubic Galileon ×Clear all

1 claim from 1 paper

1. Physics and Astronomy › Cosmology and Gravitation Theories

   Cosmological constraints on Galileon dark energy with broken shift symmetry

   Wolf, Ferreira and García-García · Physical review. D/Physical review. D. · 2026

   The paper tests a cubic Galileon dark energy model with a symmetry-breaking potential against current supernova, BAO and CMB data, finding strong statistical preference over a cosmological constant but with gravitational drawbacks.

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   1. UncheckedA cubic Galileon theory with a shift-symmetry-breaking potential is proposed as another way to give evolving, phantom-crossing dark energy on large scales.“We show that there is another possibility involving both a non-trivial kinetic sector in a cubic Galileon theory and a scalar field potential that breaks the Galileon shift symmetry, which can lead to a similar phenomenology on large scales.”