Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2005-02-14
Nucl.Phys. B721 (2005) 229-286
Physics
High Energy Physics
High Energy Physics - Theory
62pages
Scientific paper
10.1016/j.nuclphysb.2005.05.024
We propose N=4 twisted superspace formalism in four dimensions by introducing Dirac-Kahler twist. In addition to the BRST charge as a scalar counter part of twisted supercharge we find vector and tensor twisted supercharges. By introducing twisted chiral superfield we explicitly construct off-shell twisted N=4 SUSY invariant action. We can propose variety of supergauge invariant actions by introducing twisted vector superfield. We may, however, need to find further constraints to identify twisted N=4 super Yang-Mills action. We propose a superconnection formalism of twisted superspace where constraints play a crucial role. It turns out that N=4 superalgebra of Dirac-Kahler twist can be decomposed into N=2 sectors. We can then construct twisted N=2 super Yang-Mills actions by the superconnection formalism of twisted superspace in two and four dimensions.
Kato Junji
Kawamoto Noboru
Miyake Akiko
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