Weinberg–Salam model at finite temperature and density
| Autor: | J. C. Rojas, Marcelo Loewe, S. Mendizabal |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
High Energy Physics - Theory
Physics Nuclear and High Energy Physics High Energy Physics::Lattice Spontaneous symmetry breaking High Energy Physics::Phenomenology FOS: Physical sciences Propagator Vertex (geometry) High Energy Physics - Phenomenology symbols.namesake High Energy Physics - Phenomenology (hep-ph) Quadratic equation Classical mechanics High Energy Physics - Theory (hep-th) symbols Gauge theory Lagrangian Gauge fixing Mathematical physics Gauge symmetry |
| Zdroj: | Physics Letters B. 617:87-91 |
| ISSN: | 0370-2693 |
| Popis: | We present a new gauge fixing condition for the Weinberg-Salam electro-weak theory at finite temperature and density. After spontaneous symmetry breaking occurs, every unphysical term in the Lagrangian is eliminated with our gauge fixing condition. A new and simple Lagrangian can be obtained where we can identify the propagators and vertices. Some consequences are discussed, as the new gauge dependent masses of the gauge fields and the new Faddeev-Popov Lagrangian. After obtaining the quadratic terms, we calculate exactly the 1-loop effective potential identifying the contribution of every particular field. 4 pages, no figures. New references added. Typo corrected |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect