Contraints on Matter from Asymptotic Safety
High Energy Physics - Theory
2009-11-07 v3 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
Recent studies of the ultraviolet behaviour of pure gravity suggest that it admits a non-Gaussian attractive fixed point, and therefore that the theory is asymptotically safe. We consider the effect on this fixed point of massless minimally coupled matter fields. The existence of a UV attractive fixed point puts bounds on the type and number of such fields.
Cite
@article{arxiv.hep-th/0207033,
title = {Contraints on Matter from Asymptotic Safety},
author = {Roberto Percacci and Daniele Perini},
journal= {arXiv preprint arXiv:hep-th/0207033},
year = {2009}
}
Comments
5 pages, 2 figures, revtex4; introduction expanded