Supergravity computations without gravity complications

Clifford Cheung, Francesco D’Eramo, and Jesse Thaler
Phys. Rev. D 84, 085012 – Published 13 October 2011

Abstract

The conformal compensator formalism is a convenient and versatile representation of supergravity (SUGRA) obtained by gauge-fixing conformal SUGRA. Unfortunately, practical calculations often require cumbersome manipulations of component field terms involving the full gravity multiplet. In this paper, we derive an alternative gauge fixing for conformal SUGRA which decouples these gravity complications from SUGRA computations. This yields a simplified tree-level action for the matter fields in SUGRA which can be expressed compactly in terms of superfields and a modified conformal compensator. Phenomenologically relevant quantities such as the scalar potential and fermion mass matrix are then straightforwardly obtained by expanding the action in superspace.

  • Received 17 August 2011

DOI:https://doi.org/10.1103/PhysRevD.84.085012

© 2011 American Physical Society

Authors & Affiliations

Clifford Cheung1,2, Francesco D’Eramo3, and Jesse Thaler3

  • 1Berkeley Center for Theoretical Physics, University of California, Berkeley, California 94720, USA
  • 2Theoretical Physics Group, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
  • 3Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

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Issue

Vol. 84, Iss. 8 — 15 October 2011

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