Momentum-Space Topology of Standard Model

Details Momentum-Space Topology of Standard Model Momentum-Space Topology of Standard Model

1999-07-22

arxiv.org/abs/hep-ph/9907456v4

J.Low Temp.Phys.119:241-247,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, J. Low Temp. Phys. style, no figures, talk prepared for CWS-99 - International Workshop on LT Physics in Microgravity

Scientific paper

10.1023/A:1017276613273

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.

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