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Space-time vector supersymmetry and massive spinning particle

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Published 26 February 2008 • Published under licence by IOP Publishing Ltd
, , Citation Roberto Casalbuoni et al JHEP02(2008)094 DOI 10.1088/1126-6708/2008/02/094

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Author affiliations

1 Department of Physics, University of Florence, INFN-Florence and Galileo Galilei Institute, Via G. Sansone 1, 50019 Sesto Fiorentino (FI), Italy

2 PH-TH Division, CERN, 1211 Geneva 23, Switzerland

3 Departament d'Estructura i Constituents de la Matèria and Institut de Ciencies del Cosmos, Universitat de Barcelona, Diagonal 647, 08028 Barcelona, Spain

4 Department of Physics, Toho University, Funabashi, 274-8510, Japan

5 Department of Physics, University of Florence and INFN-Florence, Via G. Sansone 1, 50019 Sesto Fiorentino (FI), Italy

Dates

  1. Received 30 January 2008
  2. Accepted 14 February 2008
  3. Published

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1126-6708/2008/02/094

Abstract

We construct the action of a relativistic spinning particle from a non-linear realization of a space-time odd vector extension of the Poincaré group. For particular values of the parameters appearing in the lagrangian the model has a gauge world-line supersymmetry. As a consequence of this local symmetry there are BPS solutions in the model preserving 1/5 of the supersymmetries. A supersymmetric invariant quantization produces two decoupled 4d Dirac equations.

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10.1088/1126-6708/2008/02/094