Momentum-Space Topology of Standard Model
Abstract
The momentum-space topological invariants, which characterize the ground state of the Standard Model, are continuous functions of two parameters, generated by the hypercharge and by the weak charge. These invariants provide the absence of the mass of the elementary fermionic particles in the symmetric phase above the electroweak transition (the mass protection). All the invariants become zero in the broken symmetry phase, as a result all the elementary fermions become massive. Relation of the momentum-space invariants to chiral anomaly is also discussed.
Keywords
Cite
@article{arxiv.hep-ph/9907456,
title = {Momentum-Space Topology of Standard Model},
author = {G. E. Volovik},
journal= {arXiv preprint arXiv:hep-ph/9907456},
year = {2011}
}
Comments
8 pages, J. Low Temp. Phys. style, no figures, talk prepared for CWS-99 - International Workshop on LT Physics in Microgravity Environment, ISSP, Chernogolovka (Moscow region), July 28 - Aug 2; section on relation of momentum-space topological invariants to chiral anomaly and discussion are extended