SMEFT chromomagnetic dipole operator contributions to $t{\bar t}$ production at approximate NNLO in QCD

Nikolaos Kidonakis; Alberto Tonero

doi:10.48550/arxiv.2309.16758

Back

$SMEFT chromomagnetic dipole operator contributions to $t{\bar t}$ production at approximate NNLO in QCD$

Preprint

SMEFT chromomagnetic dipole operator contributions to $t{\bar t}$ production at approximate NNLO in QCD

Nikolaos Kidonakis and Alberto Tonero

arXiv (Cornell University)

09-28-2023

DOI: https://doi.org/10.48550/arxiv.2309.16758

Abstract

Physics - High Energy Physics - Phenomenology

We study higher-order QCD corrections for the production of a top–antitop quark pair (production) at the Large Hadron Collider in the Standard Model Effective Field Theory. We consider effects of new physics parametrized by the top-quark chromomagnetic dipole operator. We calculate new physics contributions to the total cross section at approximate NNLO, with second-order soft-gluon corrections added to the complete NLO result, including uncertainties from scale dependence and from parton distributions. We also calculate new physics contributions at approximate NNLO for differential distributions in top-quark transverse momentum.

Files and links (1)

url

Link to published article.View

Metrics

1 Record Views

Details

Title: SMEFT chromomagnetic dipole operator contributions to $t{\bar t}$ production at approximate NNLO in QCD
Creators: Nikolaos Kidonakis - Kennesaw State University
Alberto Tonero - Florida Gulf Coast University, Department of Chemistry & Physics
Publication Details: arXiv (Cornell University)
Identifiers: 99384088489706570
Academic Unit: Department of Chemistry & Physics
Language: English
Resource Type: Preprint