Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1995-05-05
Nucl.Phys.B467:183-214,1996
Physics
High Energy Physics
High Energy Physics - Theory
Extra section added to include general sigma model matter coupling to (2,0) Poincare supergravity, both in components and supe
Scientific paper
10.1016/0550-3213(96)00091-0
We construct a new class of $(p,q)$-extended Poincar\'e supergravity theories in 2+1 dimensions as Chern-Simons theories of supersymmetry algebras with both central and automorphism charges. The new theories have the advantage that they are limits of corresponding $(p,q)$ adS supergravity theories and, for not too large a value of $N=p+q$, that they have a natural formulation in terms of off-shell superfields, in which context the distinction between theories having the same value of $N$ but different $(p,q)$ arises because of inequivalent conformal compensator superfields. We also show that, unlike previously constructed N-extended Poincar\'e supergravity theories, the new (2,0) theory admits conical spacetimes with Killing spinors. Many of our results on (2,0) Poincar\'e supergravity continue to apply in the presence of coupling to N=2 supersymmetric sigma-model matter.
Howe P. S.
Izquierdo Jose M.
Papadopoulos George
Townsend Paul K.
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