380 P. <strong>van</strong> Nieuwenhuizen. SupergravilyMajorana spinor — Aspinor whose Majorana and Dirac conjugate are equal. In a Majorana representationfor the y matrices, it is a real spinor.Weyl spinors — Left- or right-handed spinors, i.e. eigenfunctions of (1 ± ys) with ~ = +1Majorana—Weyl spinors — Have both of the previous properties. This is possible only for space-times ofdimension D = 2 modulo 8.Rigid supersymmetry — Supersymmetry with constant parameters. The more familiar term globalsupersymmetry has the drawback that it is not meant to refer to global topological properties.Global supersymmetiy — See above.Local supersymmetry — Supersymmetry with spacetime dependent parameters.Simple supergravity models — Supersymmetric models in curved space-time, invariant under one SSTL.Extended supergravity models — Same as before, with “one” replaced by N (N 2).Supergravity — The domain of Mathematical Physics which studies simple (N = 1) or extended (N ~ 2)supergravity models.Gravitinos — The gauge particles of spin ~, associated with local, simple or extended supersymmetry.Gauge supermultiplet — The supermultiplet containing the graviton, the gravitinos and eventually (forN 2), lower spin fields.Pure supergravity — Simple or extended supergravity models based on a gauge supermultiplet with a selfcoupling K, of dimension the inverse of a mass, uncoupled to any matter multiplet.Super Higgs effect — The supersymmetric analog of the Higgs effect whereby, when supersymmetry isspontaneously broken, a gravitino (or several of them) “eats up” a goldstino (or several) andbecomes massive.Antigravity — A vectorial force, due to the exchange of a vector particle which is a member of anextended (N 2) gauge supermultiplet and which between two particles exactly cancels the gravitationalforce in the static limit, and doubles it between a particle and an antiparticle.Tetrad — The gauge fields of spin 2 which must be used instead of the metric when fermions arepresent.Vierbein — Same as tetrad.Supervielbein — Vierbein in superspace (viel = many in German).Graded Lie algebras — A Lie algebra with a grading. For example, the Lorentz group with k and j has aZ 2 grading.Superalgebras — A Z2 graded Lie algebra whose elements are “even” or “odd” such that the bracketrelation for two odd elements is symmetric, while also the super-Jacobi identity is satisfied. (Hence asuperalgebra is a graded algebra, but not the reverse.)Fierzing — Performing a Fierz rearrangement on four spinors (see appendix D).Vector multiplet — A multiplet containing a vector field. In N = 1 supergravity, it contains a real vector, aMajorana spinor and an (auxiliary) scalar D.Scalar multiplet — A multiplet containing scalar fields. In N = 1 supergravity it contains a Majoranaspinor and two propagating and two auxiliary spin 0 fields.Multiplets — Irreducible representations of superalgebras. In global supersymmetry, these representationsare linear, in supergravity they are nonlinear in fields.Supercovariant — An object whose supersymmetry variation does not contain terms with 0,, .L. ConventionsIn order to facilitate comparison between the conventions used in this report and those used by otherauthors, we give here a table of translations
P. <strong>van</strong> Nieuwenhuizen, Supergravity 381Ours WZ SW LRXn’? +XTh, i.~77 ,~A,?j~+XA,,AX’Y571 —i.~v5~, ~i(xA’i~~xAn”). -._/1+iys\-X() y,,,~—iiio~x‘xl\—~--—J~v 2XMflM. -._Il+y5\— -i%’0,,77lXI~)ys?7\‘2’7MXM—~---)v~~’i= (+ + + +) (+ — — —) (— + ++)1E,,,,,,,R,,, -R,,, R,,,w,,=’w,,m,,The abbreviations stand for WZ = Wess—Zumino, SW = Stelle West, LR = Lindstrom—Roèek. Theconventions of deWit et al. agree with ours.ReferencesIll A. D’Adda, R. D’Auria, P. Fre and T. Regge, Geometrical Formulation of Supergravity Theories on Orthosymplectic Supergroup Manifolds,IFIT, <strong>To</strong>nno preprint (to be published in Rivista del Nuovo Cimento).[21P.C. Aichelburg and 1. Dereli, Exact Plane-wave solutions of supergravity field equations, Phys. Rev. D18 (1978) 1754.[3] P.C. Aichelburg and T. Dereli, First non.trivial exact solution of supergravity, Czech. J. Phys. B29 (1979).[41V.P. Akulov, D.V. Volkov and V.A. Soroka, Gauge Fields on Superspace, with different Holonomy Groups, JETP Lett. 22 (1975) 187.[4al D.V. Volkov and V.P. Akulov, On possible universal interaction of neutrino, Pis’ma Zh. Eksp. Teor. Fiz. 16 (1972) 621;D.V. Volkov and V.P. Akulov, Is the neutrino a Goldstone particle? Phys. Lett. 46B (1973) 109;V.P. Akulov and D.V. Volkov, Goldstone fields with a spin one half, Teor. Mat. Fiz. 18 (1974) 39;D.V. Volkov and V.A. Soroka, Higgs effect for Goldstone particles with spin 1, Pis’ma Zh. Eksp. Teor. Fiz. 18 (1973) 529;D.V. Volkov and V.A. Soroka, Gauge fields for symmetry group with spinor parameters, Teor. Mat. Fiz. 20 (1974) 291;V.P. Akulov, D.V. Volkov and V.A. Soroka, Gauge fields on superspaces with different holonomy groups, Pis’ma Zh. Eksp. Teor. Fiz. 22(1975) 396.V.P. Akulov, D.V. Volkov and V.A. Soroka, On general covariant theories of gauge fields on superspace, Teor. Mat. Fiz. 31(1977)12;V.P. Akulov and D.V. Volkov, On Riemannian superspaces of minimal dimensionality, Teor. Mat. Fiz. 41(1979)147.[5] C. Aragone, I. Chela and A. Restuccia, Local Geometry of Superconformal Gravity, Phys. Lett. 82B (1979) 377.[6] C. Aragone and S. Deser, Consistency Problems of Hypergravity, Phys. Lett. 86B (1979) 161.[7] C. Aragone and S. Deser, Hamiltonian Form For Massless Higher Spin Fermions, Phys. Rev. D 21(1980) 352.[8] C. Aragone, Son Universales Las Gravedades?, Einstein Sinpotium, ed. J. Chela-Flores (Editorial Equinioccio, Caracas).[9] C. Aragone and A. Restuccia, The Baker—Campbell—Hausdorff Formula For the Chiral SU(2) Supergroup, Lett. Math. Phys. 3 (1979) 29.[10] C. Aragone and S. Deser, Consistency Problems of Hypergravity, Phys. Lett. 86B (1979) 161.[11] C. Aragone and S. Deser, Consistency Problems of Spin.2 Gravity Couplings, Nuovo Cimento B (1980).[12] C. Aragone and S. Deser, Higher Spin Vierbein Gauge Fermions and Hypergravities, NucI. Phys. B (1980).[13] C. Aragone and S. Deser, Consistency Requirements in Hypergravity and Spin.2 Matter Gravity Coupling Problems, Proc. SupergravityWorkshop (North-Holland, 1980).[14]C. Aragone and S. Deser, Massless Vierbein spin 5/2 fields and Hypergravity, Proc. Marcel Grossmann Conf. (North-Holland, 1980).[15] C. Aragone, J. Chela and A. Restuccia, The BCH formula for SU(2) supergroups, J. Math. Phys. (1980) (to be published).[161C. Aragone, Euclidean hypergravities and vierbein gauge fermions, Proc. of the Gravity, Gravities and Supersymmetry Symposium, ed. J.Chela (Equinoccio, 1980) (to be published).[17] R. Arnowitt, P. Nath and B. Zumino, Superfield Densities and Action Principle in Curved Superspace, Phys. Lett. 56 (1975) 81.[181P. Nath, Supersymmetry and Gauge Supersymmetry, Invited talk at Conf. on Gauge Theories and Modern Field Theory at NortheasternUniv., Sept. 26—27, 1975 (M.I.T. Press, Cambridge, Mass., 1976).[19] P. Nath, Local Supersymmetries, Invited paper presented at the American Physical Society Meeting at Washington, D.C., April 1977,Northeastern Univ. Report NUB #2329.[201P. Nath and R. Arnowitt, Generalized Super-Gauge Symmetry as a New Framework for Unified Gauge Theories, Phys. Lett. 56B (1975) 177.
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