Renormalizable Lagrangians for Massive Yang-Mills Fields

Renormalizable models are constructed in which local gauge invariance is broken spontaneously. Feynman rules and Ward identities can be found by means of a path integral method, and they can be checked by algebra. In one of these models, which is studied in more detail, local SU(2) is broken in such a way that local U(1) remains as a symmetry. A renormalizable and unitary theory results, with photons, charged massive vector particles, and additional neutral scalar particles. It has three independent parameters.

Note:

*** Nobel Prize <a href=http://www.nobel.se/announcement-99/physics99.html>1999</a> ***

GAUGE FIELD THEORY: YANG-MILLS
GAUGE FIELD THEORY: MASSIVE
MASSIVE: GAUGE FIELD THEORY
FIELD THEORETICAL MODEL: RENORMALIZABLE
SPONTANEOUS SYMMETRY BREAKING
FIELD THEORY: PATH INTEGRAL
FIELD THEORY: WARD IDENTITY
FEYNMAN GRAPH
GAUGE FIELD THEORY: SU(2)
GAUGE FIELD THEORY: SU(2) X U(1)

References(12)

Figures(0)

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