3,633 research outputs found
On the one-loop effective potential in the higher-derivative four-dimensional chiral superfield theory with a nonconventional kinetic term
We explicitly calculate the one-loop effective potential for a
higher-derivative four-dimensional chiral superfield theory with a
nonconventional kinetic term. We consider the cases of minimal and nonminimal
general Lagrangians. In particular, we find that in the minimal case the
divergent part of the one-loop effective potential vanishes by reason of the
chirality.Comment: 9 page
All-loop finiteness of the two-dimensional noncommutative supersymmetric gauge theory
Within the superfield approach, we discuss two-dimensional noncommutative
super-QED. Its all-order finiteness is shown explicitly.Comment: 7 page
On the duality of three-dimensional superfield theories
Within the superfield approach, we consider the duality between the
supersymmetric Maxwell-Chern-Simons and self-dual theories in three spacetime
dimensions. Using a gauge embedding method, we construct the dual theory to the
self-dual model interacting with a matter superfield, which turns out to be not
the Maxwell-Chern-Simons theory coupled to matter, but a more complicated
model, with a ``restricted'' gauge invariance. We stress the difficulties in
dualizing the self-dual field coupled to matter into a theory with complete
gauge invariance. After that, we show that the duality, achieved between these
two models at the tree level, also holds up to the lowest order quantum
corrections.Comment: 18 pages,2 figures, revtex4, v2: corrected reference
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