%0 Journal Article 
%A Calixto Molina, Manuel
%T Gauge Symmetry Breaking: Higgs-less Mass Generation and Radiation Phenomena
%D 2004
%U http://hdl.handle.net/10317/509
%U arXiv:hep-th/0402143v1
%X Gauge symmetries generally appear as a constraint algebra, under which one expects all physical states to be singlets. However, quantum anomalies and boundary conditions
introduce central charges and change this picture, thus causing gauge/diffeomorphism
modes to become physical. We expose a cohomological (Higgs-less) generation of mass
in U(N)-gauge invariant Yang-Mills theories through non-trivial representations of the
gauge group. This situation is also present in black hole evaporation, where the Virasoro
algebra turns out to be the relevant subalgebra of surface deformations of the horizon of an arbitrary black hole.
%K Matemática Aplicada
%K Anomalías cuánticas
%K Álgebra Virasoro
%K Indicador de simetrías
%K Higgs-less
%~ GOEDOC, SUB GOETTINGEN