Universality of the Poincar\'e gravitational form factor constraints
High Energy Physics - Theory
2020-03-10 v2 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
Relativistic spin states are convention dependent. In this work we prove that the zero momentum-transfer limits of the leading two form factors in the decomposition of the energy-momentum tensor matrix elements are independent of this choice. In particular, we demonstrate that these constraints are insensitive to whether the corresponding states are massive or not, and that they arise purely due to the Poincar\'e covariance of the states.
Keywords
Cite
@article{arxiv.1908.02567,
title = {Universality of the Poincar\'e gravitational form factor constraints},
author = {Cédric Lorcé and Peter Lowdon},
journal= {arXiv preprint arXiv:1908.02567},
year = {2020}
}
Comments
11 pages; v2: additional comments added, matches published version