Gravity-induced four-fermion contact interaction implies gravitational intermediate W and Z type gauge bosons
General Relativity and Quantum Cosmology
2017-02-14 v2 High Energy Physics - Phenomenology
Abstract
Coupling fermions to gravity necessarily leads to a non-renormalizable, gravitational four-fermion contact interaction. In this essay, we argue that augmenting the Einstein-Cartan Lagrangian with suitable kinetic terms quadratic in the gravitational gauge field strengths (torsion and curvature) gives rise to new, massive propagating gravitational degrees of freedom. This is to be seen in close analogy to Fermi's effective four-fermion interaction and its emergent W and Z bosons.
Keywords
Cite
@article{arxiv.1606.09273,
title = {Gravity-induced four-fermion contact interaction implies gravitational intermediate W and Z type gauge bosons},
author = {Jens Boos and Friedrich W. Hehl},
journal= {arXiv preprint arXiv:1606.09273},
year = {2017}
}
Comments
title changed, matches published version, 7 pages