Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1995-04-24
Class.Quant.Grav.12:1913-1918,1995
Physics
High Energy Physics
High Energy Physics - Theory
11 pages, latex, no figures.
Scientific paper
10.1088/0264-9381/12/8/008
There are at present two known string theories in $(2,2)$ dimensions. One of them is the well known $N=2$ string, and the other one is a more recently constructed $N=1$ spacetime supersymmetric string. They are both based on certain twistings and/or truncations of the small $N=4$ superconformal algebra, realised in terms of $(2,2)$ superspace variables. In this paper, we investigate more general possibilities for string theories based on algebras built with the same set of fields. We find that there exists one more string theory, based on an algebra which is not contained within the $N=4$ superconformal algebra. We investigate the spectrum and interactions of this theory.
Lu Hai
Pope Christopher N.
Sezgin Ergin
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