Scientific article
OA Policy
English

Supersymmetry breaking by higher dimension operators

Published inNuclear physics. B, vol. 879, p. 348-369
Collection
  • Open Access - SCOAP3
Publication date2014
Abstract

We discuss a supersymmetry breaking mechanism for N=1 theories triggered by higher dimensional operators. We consider such operators for real linear and chiral spinor superfields that break supersymmetry and reduce to the Volkov–Akulov action. We also consider supersymmetry breaking induced by a higher dimensional operator of a nonminimal scalar (complex linear) multiplet. The latter differs from the standard chiral multiplet in its auxiliary sector, which contains, in addition to the complex scalar auxiliary of a chiral superfield, a complex vector and two spinors auxiliaries. By adding an appropriate higher dimension operator, the scalar auxiliary may acquire a nonzero vev triggering spontaneous supersymmetry breaking. We find that the spectrum of the theory in the supersymmetry breaking vacuum consists of a free chiral multiplet and a constraint chiral superfield describing the goldstino. Interestingly, the latter turns out to be one of the auxiliary fermions, which becomes dynamical in the supersymmetry breaking vacuum. In all cases we are considering here, there is no sgoldstino mode and thus the goldstino does not have a superpartner. The sgoldstino is decoupled since the goldstino is one of the auxiliaries, which is propagating only in the supersymmetry breaking vacuum. We also point out how higher dimension operators introduce a potential for the propagating scalar of the theory.

Citation (ISO format)
FARAKOS, Fotis et al. Supersymmetry breaking by higher dimension operators. In: Nuclear physics. B, 2014, vol. 879, p. 348–369. doi: 10.1016/j.nuclphysb.2013.12.016
Main files (1)
Article (Published version)
Identifiers
Journal ISSN0550-3213
502views
174downloads

Technical informations

Creation25/06/2015 17:23:01
First validation25/06/2015 17:23:01
Update time14/03/2023 23:24:50
Status update14/03/2023 23:24:50
Last indexation31/10/2024 00:40:58
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack