A composite massless vector boson
High Energy Physics - Lattice
2020-06-22 v2 High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
In a non-perturbative gauge-invariant formulation of grand-unified theories all low energy vector states need to be composite with respect to the high-scale gauge group, including the photon. We investigate this by using lattice methods to spectroscopically analyze the vector channel in a toy grand-unified theory, an SU(2) adjoint Higgs model. Our results support indeed the existence of a massless composite vector particle.
Cite
@article{arxiv.2002.08221,
title = {A composite massless vector boson},
author = {Vincenzo Afferrante and Axel Maas and Pascal Törek},
journal= {arXiv preprint arXiv:2002.08221},
year = {2020}
}
Comments
19 pages, 9 figures, v2: minor modifications, one figure added in the appendix