Renormalisation group running effects in in the Standard Model Effective Field Theory

Stefano Di Noi; Ramona Gröber

doi:10.1140/epjc/s10052-024-12661-5

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2024 Impact factor 4.8

Particles and Fields

Open Access

Eur. Phys. J. C (2024) 84: 403
https://doi.org/10.1140/epjc/s10052-024-12661-5

Regular Article - Theoretical Physics

Renormalisation group running effects in $p p \to t \bar{t} h$ $pp\rightarrow t{\bar{t}}h$ in the Standard Model Effective Field Theory

Stefano Di Noi¹^,2^a and Ramona Gröber¹^,2

¹ Dipartimento di Fisica e Astronomia “Galileo Galilei”, Università di Padova, Via Marzolo 8, 35131, Padua, Italy
² Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Via Marzolo 8, 35131, Padua, Italy

^a stefano.dinoi@phd.unipd.it

Received: 18 January 2024
Accepted: 10 March 2024
Published online: 18 April 2024

Abstract

We study the effects of renormalisation group running of the Wilson coefficients in Standard Model Effective Field Theory, using the process $p p \to t \bar{t} h$ $pp \rightarrow t {\bar{t}}h$ as a showcase. We consider both strong and top Yukawa running effects, since the latter can be relevant in presence of large Wilson coefficients. We study the difference between the use of a dynamical and fixed renormalisation scale by exploring different scenarios for the higher-dimensional operators at the high energy scale of new physics, assumed to be at the TeV scale.

© The Author(s) 2024

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