Some features of SUSY breaking in N = 2 supergravity

S. Cecotti; L. Girardello; M. Porrati

doi:10.1016/0370-2693(85)91656-9

Some features of SUSY breaking in N = 2 supergravity

S. Cecotti, L. Girardello, M. Porrati

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Abstract

We discuss some features of SUSY breaking in N = 2 supergravity. First, we show that in a general N = 2 Sugra model (constructed according to the tensor calculus) all stationary points of the potential, at Λ = 0, are fully supersymmetric if the compensating multiplet is not gauged. Thus a viable super-Higgs effect in N =2 supergravity can occur only in presence of a Fayet-Iliopoulos term. Then we present an explicit model with two scales of breaking in anti-de Sitter space. Moreover, the ratio of the two gravitino masses is sliding i.e. not determined by the classical potential. In the extreme situation one of the gravitino masses equals -Λ 3, and thus we have partial super-Higgs (in AdS space). The cosmological constant may be arranged to an arbitrary small value while keeping the mass of the heavy gravitino constant.

Original language	English (US)
Pages (from-to)	367-371
Number of pages	5
Journal	Physics Letters B
Volume	151
Issue number	5-6
DOIs	https://doi.org/10.1016/0370-2693(85)91656-9
State	Published - Feb 21 1985

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Nuclear and High Energy Physics

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10.1016/0370-2693(85)91656-9

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abstract = "We discuss some features of SUSY breaking in N = 2 supergravity. First, we show that in a general N = 2 Sugra model (constructed according to the tensor calculus) all stationary points of the potential, at Λ = 0, are fully supersymmetric if the compensating multiplet is not gauged. Thus a viable super-Higgs effect in N =2 supergravity can occur only in presence of a Fayet-Iliopoulos term. Then we present an explicit model with two scales of breaking in anti-de Sitter space. Moreover, the ratio of the two gravitino masses is sliding i.e. not determined by the classical potential. In the extreme situation one of the gravitino masses equals -Λ 3, and thus we have partial super-Higgs (in AdS space). The cosmological constant may be arranged to an arbitrary small value while keeping the mass of the heavy gravitino constant.",

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T1 - Some features of SUSY breaking in N = 2 supergravity

AU - Cecotti, S.

AU - Girardello, L.

AU - Porrati, M.

PY - 1985/2/21

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N2 - We discuss some features of SUSY breaking in N = 2 supergravity. First, we show that in a general N = 2 Sugra model (constructed according to the tensor calculus) all stationary points of the potential, at Λ = 0, are fully supersymmetric if the compensating multiplet is not gauged. Thus a viable super-Higgs effect in N =2 supergravity can occur only in presence of a Fayet-Iliopoulos term. Then we present an explicit model with two scales of breaking in anti-de Sitter space. Moreover, the ratio of the two gravitino masses is sliding i.e. not determined by the classical potential. In the extreme situation one of the gravitino masses equals -Λ 3, and thus we have partial super-Higgs (in AdS space). The cosmological constant may be arranged to an arbitrary small value while keeping the mass of the heavy gravitino constant.

AB - We discuss some features of SUSY breaking in N = 2 supergravity. First, we show that in a general N = 2 Sugra model (constructed according to the tensor calculus) all stationary points of the potential, at Λ = 0, are fully supersymmetric if the compensating multiplet is not gauged. Thus a viable super-Higgs effect in N =2 supergravity can occur only in presence of a Fayet-Iliopoulos term. Then we present an explicit model with two scales of breaking in anti-de Sitter space. Moreover, the ratio of the two gravitino masses is sliding i.e. not determined by the classical potential. In the extreme situation one of the gravitino masses equals -Λ 3, and thus we have partial super-Higgs (in AdS space). The cosmological constant may be arranged to an arbitrary small value while keeping the mass of the heavy gravitino constant.

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Some features of SUSY breaking in N = 2 supergravity

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