On destabilizing divergences in supergravity models
نویسندگان
چکیده
منابع مشابه
Destabilizing Divergences in Supergravity Theories
We study the stability of the gauge hierarchy in hidden-sector supergravity theories. We show that a destabilizing tadpole can appear if a theory has a gaugeand global-symmetry singlet with renormalizable couplings to the visible fields. We also find a quadratically divergent two-loop contribution to the supersymmetric effective potential. This term illustrates the difficulty of using the “LHC ...
متن کاملDestabilizing Divergences in Supergravity Theories at Two Loops
We examine the stability of the mass hierarchy in hidden-sector supergravity theories. We show that a quadratically divergent tadpole can appear at two loops, even in minimal supergravity theories, provided the theory has a gaugeand global-symmetry singlet with renormalizable couplings to the visible fields. This tadpole can destabilize the hierarchy. We also find a quadratically divergent two-...
متن کاملDestabilizing the gaugino condensate in modular invariant supergravity models
We investigate the stability of the hidden sector gaugino condensate in a SL(2,Z)-invariant supergravity model inspired by the E8⊗E8 heterotic string, using the effective chiral superfield formalism. We calculate the Planck-suppressed corrections to the “truncated approximation” for the condensate value and the scalar potential. A transition to a phase with zero condensate occurs near special p...
متن کاملOn divergences in non-minimal conformal supergravity
We review the question of quantum consistency of N = 4 conformal supergravity in 4 dimensions. The UV divergences and anomalies of the standard (‘minimal’) conformal supergravity where the complex scalar φ is not coupled to the Weyl graviton kinetic term can be cancelled by coupling this theory to N = 4 super Yang–Mills with gauge group of dimension 4. The same turns out to be true also for the...
متن کاملOn divergences in non-minimal conformal supergravity
We review the question of quantum consistency of N = 4 conformal supergravity in 4 dimensions. The UV divergences and anomalies of the standard (‘minimal’) conformal supergravity where the complex scalar φ is not coupled to the Weyl graviton kinetic term can be cancelled by coupling this theory to N = 4 super Yang–Mills with gauge group of dimension 4. The same turns out to be true also for the...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics Letters B
سال: 1995
ISSN: 0370-2693
DOI: 10.1016/0370-2693(95)00373-s