We analyze an abelian gaugemodel in three dimensions which includes masslessscalar matter fields. By controllingthe trace anomalies with a local dilatation Ward identity, we show that, in perturbation theory and within the BPHZL scheme, the Chern- Simons term has no radiative corrections. This implies, in particular, the vanishing of the corresponding fl function in the renor- realization group equation.
Nonrenormalization properties of the Chern-Simons action coupled to matter
MAGGIORE, NICOLA;
1992-01-01
Abstract
We analyze an abelian gaugemodel in three dimensions which includes masslessscalar matter fields. By controllingthe trace anomalies with a local dilatation Ward identity, we show that, in perturbation theory and within the BPHZL scheme, the Chern- Simons term has no radiative corrections. This implies, in particular, the vanishing of the corresponding fl function in the renor- realization group equation.
File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
