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27 June 2022
 
  » arxiv » 1909.7111

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Geometrized quantum Galileons
Lavinia Heisenberg ; Christian F. Steinwachs ;
Date 16 Sep 2019
AbstractWe investigate the renormalization structure of the scalar Galileon model in flat spacetime by calculating the one-loop divergences in a closed geometric form. The geometric formulation is based on the definition of an effective Galileon metric and allows to apply known heat-kernel techniques. The result for the one-loop divergences is compactly expressed in terms of curvature invariants of the effective Galileon metric and corresponds to a resummation of the divergent one-loop contributions of all $n$-point functions. The divergent part of the one-loop effective action therefore serves as generating functional for arbitrary $n$-point counterterms. We discuss our result within the Galileon effective field theory and give a brief outlook on extensions to more general Galileon models in curved spacetime.
Source arXiv, 1909.7111
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