Supersymmetry and R-symmetry breaking in models with non-canonical Kähler potential

We analyze several aspects of R-symmetry and supersymmetry breaking in generalized O'Raifeartaigh models with non-canonical Kähler potential. Some conditions on the Kähler potential are derived in order for the non-supersymmetric vacua to be degenerate. We calculate the Coleman-Weinberg (CW) ef...

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Autores principales: Aldrovandi, León Gabriel, Marqués, Diego
Formato: Articulo
Lenguaje:Inglés
Publicado: 2008
Materias:
Ciencias Exactas
Sigma models
Supersymmetric effective theories
Supersymmetry breaking
Supersymmetry
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84276
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84276
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Sigma models
Supersymmetric effective theories
Supersymmetry breaking
Supersymmetry
spellingShingle Ciencias Exactas
Sigma models
Supersymmetric effective theories
Supersymmetry breaking
Supersymmetry
Aldrovandi, León Gabriel
Marqués, Diego
Supersymmetry and R-symmetry breaking in models with non-canonical Kähler potential
topic_facet Ciencias Exactas
Sigma models
Supersymmetric effective theories
Supersymmetry breaking
Supersymmetry
description We analyze several aspects of R-symmetry and supersymmetry breaking in generalized O'Raifeartaigh models with non-canonical Kähler potential. Some conditions on the Kähler potential are derived in order for the non-supersymmetric vacua to be degenerate. We calculate the Coleman-Weinberg (CW) effective potential for general quiral non-linear sigma models and then study the 1-loop quantum corrections to the pseudo-moduli space. For R-symmetric models, the quadratic dependence of the CW potential with the ultraviolet cutoff scale disappears. We also show that the conditions for R-symmetry breaking are independent of this scale and remain unchanged with respect to those of canonical models. This is, R-symmetry can be broken when generic R-charge assignments to the fields are made, while it remains unbroken when only fields with R-charge 0 and 2 are present. We further show that these models can keep the runaway behavior of their canonical counterparts and also new runaway directions can be induced. Due to the runaway directions, the non-supersymmetric vacua is metastable.
format Articulo
Articulo
author Aldrovandi, León Gabriel
Marqués, Diego
author_facet Aldrovandi, León Gabriel
Marqués, Diego
author_sort Aldrovandi, León Gabriel
title Supersymmetry and R-symmetry breaking in models with non-canonical Kähler potential
title_short Supersymmetry and R-symmetry breaking in models with non-canonical Kähler potential
title_full Supersymmetry and R-symmetry breaking in models with non-canonical Kähler potential
title_fullStr Supersymmetry and R-symmetry breaking in models with non-canonical Kähler potential
title_full_unstemmed Supersymmetry and R-symmetry breaking in models with non-canonical Kähler potential
title_sort supersymmetry and r-symmetry breaking in models with non-canonical kähler potential
publishDate 2008
url http://sedici.unlp.edu.ar/handle/10915/84276
work_keys_str_mv AT aldrovandileongabriel supersymmetryandrsymmetrybreakinginmodelswithnoncanonicalkahlerpotential
AT marquesdiego supersymmetryandrsymmetrybreakinginmodelswithnoncanonicalkahlerpotential
bdutipo_str Repositorios
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