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arXiv · 1909.04662

One-loop renormalization in Galileon effective field theory

Lavinia Heisenberg·Christian F. Steinwachs
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Abstract

We investigate the renormalization structure of scalar Galileons in flat spacetime. We explicitly calculate the ultraviolet divergent one-loop contributions to the 2-point, 3-point, 4-point, and 5-point functions. We discuss the structure of the counterterms and their hierarchy within an effective field theory expansion. We comment on different resummation schemes, including a geometric resummation for which our results could be generalized to arbitrary n-point functions.

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Lavinia Heisenberg, Christian F. Steinwachs. 2019-09-10. One-loop renormalization in Galileon effective field theory. https://doi.org/10.1088/1475-7516/2020/01/014

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