English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Ghost Condensate in N=1 Supergravity

Koehn, M., Lehners, J.-L., & Ovrut, B. (2014). Ghost Condensate in N=1 Supergravity. In Breaking of Supersymmetry and Ultraviolet Divergences in Extended Supergravity; Springer Proceedings in Physics Volume 153 (pp. 163-178). Springer.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-9861-8 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-9862-6
Genre: Conference Paper

Files

show Files
hide Files
:
Chapter9.pdf (Any fulltext), 239KB
Name:
Chapter9.pdf
Description:
-
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Koehn, Michael1, Author              
Lehners, Jean-Luc1, Author              
Ovrut, Burt, Author
Affiliations:
1String Cosmology, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, Golm, DE, ou_1753351              

Content

show
hide
Free keywords: High Energy Physics - Theory, hep-th,Astrophysics, Cosmology and Extragalactic Astrophysics, astro-ph.CO
 Abstract: We present the theory of a supersymmetric ghost condensate coupled to N=1 supergravity. This is accomplished using a general formalism for constructing locally supersymmetric higher-derivative chiral superfield actions. The theory admits a ghost condensate vacuum in de Sitter spacetime. Expanded around this vacuum, the scalar sector of the theory is shown to be ghost-free with no spatial gradient instabilities. By direct calculation, the fermion sector is found to consist of a massless chiral fermion and a massless gravitino. By analyzing the supersymmetry transformations, we find that the chiral fermion transforms inhomogeneously, indicating that the ghost condensate vacuum spontaneously breaks local supersymmetry with this field as the Goldstone fermion. Although potentially able to get a mass through the super-Higgs effect, the vanishing superpotential in the ghost condensate theory renders the gravitino massless. Thus local supersymmetry is broken without the super-Higgs effect taking place. This is in agreement with, and gives an explanation for, the direct calculation.

Details

show
hide
Language(s):
 Dates: 2012-12-102014
 Publication Status: Published in print
 Pages: 41 pages
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1007/978-3-319-03774-5_9
 Degree: -

Event

show
hide
Title: INFN-Laboratori Nazionali di Frascati School
Place of Event: -
Start-/End Date: 2013 - 2013

Legal Case

show

Project information

show

Source 1

show
hide
Title: Breaking of Supersymmetry and Ultraviolet Divergences in Extended Supergravity; Springer Proceedings in Physics Volume 153
  Alternative Title :
Source Genre: Proceedings
 Creator(s):
Affiliations:
Publ. Info: Springer
Pages: - Volume / Issue: (6) Sequence Number: - Start / End Page: 163 - 178 Identifier: -