Matrix elements of the energy-momentum tensor for one-particle states of the Z-boson are parameterized in terms of gravitational form factors. One-loop order electroweak corrections to these quantities are calculated. Renormalization and physical interpretation of the obtained results are discussed.
@article{arxiv.2601.22731,
title = {Gravitational form factors of the $Z$-boson},
author = {P. Beißner and J. Yu. Panteleeva and B. -D. Sun and E. Epelbaum and J. Gegelia},
journal= {arXiv preprint arXiv:2601.22731},
year = {2026}
}