Old and New No Go Theorems on Interacting Massless Particles in Flat Space
High Energy Physics - Theory
2012-10-09 v2 High Energy Physics - Phenomenology
Abstract
We review model independent arguments showing that massless particles interacting with gravity in a Minkowski background space can have at most spin two. These arguments include a classic theorem due to Weinberg, as well as a more recent extension of the Weinberg-Witten theorem. A puzzle arising from an apparent counterexample to these theorems is examined and resolved.
Keywords
Cite
@article{arxiv.1209.4876,
title = {Old and New No Go Theorems on Interacting Massless Particles in Flat Space},
author = {M. Porrati},
journal= {arXiv preprint arXiv:1209.4876},
year = {2012}
}
Comments
References added. Based on a talk given at the conference QUARKS 2012, Yaroslavl, Russian Federation, June 4-10, 2012. To appear in the conference proceedings