Phys. Rev. Lett. 104, 090401 (2010) [4 pages]Maxwell Superalgebra and Superparticles in Constant Gauge BackgroundsReceived 3 December 2009; published 4 March 2010 We present the Maxwell superalgebra, an N=1, D=4 algebra with two Majorana supercharges, obtained as the minimal enlargement of a Poincaré superalgebra containing the Maxwell algebra as a subalgebra. The new superalgebra describes the supersymmetries of generalized N=1, D=4 superspace in the presence of a constant Abelian supersymmetric field strength background. Applying the techniques of nonlinear coset realization to the Maxwell supergroup we propose a new κ-invariant massless superparticle model providing a dynamical realization of the Maxwell superalgebra. © 2010 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.104.090401
DOI:
10.1103/PhysRevLett.104.090401
PACS:
03.50.De, 04.40.Nr, 11.30.Ly, 12.60.Jv
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