# Loops and Legs in Quantum Field Theory

Apr 25 – 30, 2022
Ettal
Europe/Berlin timezone

## Quark and Gluon Contributions to QCD Trace Anomaly at Four Loops

Apr 29, 2022, 11:00 AM
30m
Raum Graswangtal

### Speaker

Dr Taushif Ahmed (University of Torino)

### Description

The QCD energy-momentum tensor exhibits the well-known property of trace anomaly. The anomalous contribution can be distributed among the quark and gluon parts. Although the total energy-momentum tensor remains unrenormalized owing to the conservation of energy and momentum, the individual components do go through ultraviolet renormalization. We perform this renormalization at four-loop level. As a spin-off, the phenomenological consequences of our result concerning the anomaly induced mass structure of hadrons are discussed.

### Primary author

Dr Taushif Ahmed (University of Torino)

### Co-author

Dr Long Chen (RWTH Aachen University)