The nonlocal vector current and its relation to the trace anomaly

2 Sept 2025, 12:25
15m
Centro Carlos Santamaría

Centro Carlos Santamaría

Plaza Elhuyar, 2 20018 San Sebastián Spain

Speaker

Alessio Carmelo Alvaro (University of Pavia)

Description

It is a well established fact the connection between the unpolarized GPDs and the energy-momentum tensor. In fact, these GPDs provide access to the gravitational form factors and, consequently, to the trace of the energy-momentum tensor and its anomaly. With this talk, we will show new perturbative results regarding the matrix element of the vector current for on-shell gluons and establish its relation to the energy-momentum tensor and its trace. We also elaborate on the relation of our study to recent discussions about potential anomaly contributions in deeply virtual Compton scattering

Authors

Alessio Carmelo Alvaro (University of Pavia) Andreas Metz Prof. Barbara Pasquini (University of Pavia and INFN-Pavia) Ignacio Castelli Simone Rodini

Presentation materials