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PIRSA:22050020

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https://pirsa.org/22050020

Nonvanishing gravitational contribution to matter beta functions for vanishing dimensionful regulators

Pazzini de Brito, G. (2022). Nonvanishing gravitational contribution to matter beta functions for vanishing dimensionful regulators. Perimeter Institute for Theoretical Physics. https://pirsa.org/22050020

Gustavo Pazzini de Brito Centro Brasileiro de Pesquisas Físicas

Talk numberPIRSA:22050020
DOI10.48660/22050020
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

In this seminar, I will explore the effect of quantum gravity on matter couplings within a (Functional) Renormalization Group framework. I will mainly focus on gravitational contribution to the flow of gauge couplings. In particular, I will focus on results obtained from a class of interpolating regulators that allow us to extract certain universal pieces from non-universal quantities. I will argue that gravity might induce the UV completion of an Abelian-gauge sector, despite an apparent vanishing contribution to its flow when we consider only universal pieces. This result might offer a new perspective on the differences between perturbative studies and Functional Renormalization Group studies.

Zoom Link: https://pitp.zoom.us/j/97277305442?pwd=d240TXhrNnZ0TlErbGQ0bCtGU1NCZz09