158 research outputs found
On Chapline-Manton couplings: a cohomological approach
Chern-Simons couplings between Yang-Mills gauge fields and an abelian 2-form
are derived by means of cohomological arguments.Comment: 10 pages, LaTeX 2.0
Consistent interactions in a three-dimensional theory with tensor gauge fields of degrees two and three
All consistent interactions in a three-dimensional theory with tensor gauge
fields of degrees two and three are obtained by means of the deformation of the
solution to the master equation combined with cohomological techniques. The
local BRST cohomology of this model allows the deformation of the Lagrangian
action, accompanying gauge symmetries and gauge algebra. The relationship with
the Chern--Simons theory is discussed.Comment: 21 pages, accepted for publication in Int. J. Mod. Phys.
Irreducible Antifield Analysis of -Form Gauge Theories
The irreducible antifield formalism for -form gauge theories with gauge
invariant interaction terms is exposed. The ghosts of ghosts do not appear. The
acyclicity of the Koszul-Tate operator is ensured without introducing
antifields at resolution degrees higher that two.Comment: 11 pag, latex 2.09, no figure
Hamiltonian BRST interactions in Abelian theories
Consistent couplings between an Abelian gauge field and three types of matter
fields are investigated by means of the Hamiltonian BRST deformation theory
based on cohomological techniques. In this manner, scalar electrodynamics, the
Stuckelberg theory for Abelian zero- and one-forms, respectively, spinor
electrodynamics, are inferred.Comment: LaTeX 2e, 25 pages, to appear in Eur. Phys. J. C, Ref. [16] correcte
Nonabelian interactions from Hamiltonian BRST cohomology
Consistent Hamiltonian couplings between a set of vector fields and a system
of matter fields are derived by means of BRST cohomological techniques.Comment: 21 pages, LaTeX 2.
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