Title of article :
Absence of higher order corrections to the non-Abelian Chern–Simons coefficient
Author/Authors :
F.T. Brandt، نويسنده , , Ashok Das، نويسنده , , J. Frenkel، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2000
Abstract :
We extend the Coleman–Hill analysis to non-Abelian Chern–Simons theories containing a tree level topological mass term. We show, in the case of a pure Yang–Mills–Chern–Simons theory, that there are no corrections to the coefficient of the Chern–Simons term beyond one loop in the axial gauge. Our arguments use constraints coming only from small gauge Ward identities as well as the analyticity of the amplitudes, much like the proof in the Abelian case. Some implications of this result are also discussed.
Journal title :
PHYSICS LETTERS B
Journal title :
PHYSICS LETTERS B