Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1998-07-03
Int.J.Theor.Phys.38:1181-1206,1999
Physics
High Energy Physics
High Energy Physics - Theory
Final version to appear in Int.Jour.of Theor.Phys., 12 pages, RevTeX, no figures, two columns, corrected typos in eqs.(23-29),
Scientific paper
10.1023/A:1026614631617
Recently proposed supergravity theories in odd dimensions whose fields are connection one-forms for the minimal supersymmetric extensions of anti-de Sitter gravity are discussed. Two essential ingredients are required for this construction: (1) The superalgebras, which extend the adS algebra for different dimensions, and (2) the lagrangians, which are Chern-Simons $(2n-1)$-forms. The first item completes the analysis of van Holten and Van Proeyen, which was valid for N=1 only. The second ensures that the actions are invariant by construction under the gauge supergroup and, in particular, under local supersymmetry. Thus, unlike standard supergravity, the local supersymmetry algebra closes off-shell and without requiring auxiliary fields. \\ The superalgebras are constructed for all dimensions and they fall into three families: $osp(m|N)$ for $D=2,3,4$, mod 8, $osp(N|m)$ for $D=6,7,8$, mod 8, and $su(m-2,2|N)$ for D=5 mod 4, with $m=2^{[D/2]}$. The lagrangian is constructed for $D=5, 7$ and 11. In all cases the field content includes the vielbein ($e_{\mu}^{a}$), the spin connection ($\omega_{\mu}^{ab}$), $N$ gravitini ($\psi_{\mu}^{i}$), and some extra bosonic "matter" fields which vary from one dimension to another.
Troncoso Ricardo
Zanelli Jorge
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