Destabilizing Divergences in Supergravity Theories at Two Loops

Details Destabilizing Divergences in Supergravity Theories at Two Loops Destabilizing Divergences in Supergravity Theories at Two Loops

1995-05-05

arxiv.org/abs/hep-ph/9505244v2

Nucl.Phys.B455:59-82,1995

Physics

High Energy Physics

High Energy Physics - Phenomenology

Minor changes to references and discussion

Scientific paper

10.1016/0550-3213(95)00463-3

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 gauge- and global-symmetry singlet with renormalizable couplings to the visible fields. This tadpole can destabilize the hierarchy. We also find a quadratically divergent two-loop contribution to the field-dependent vacuum energy. This result casts doubt on the efficacy of the "LHC mechanism" for controlling quadratic divergences. We carry out the two-loop calculation in a manifestly supersymmetric formalism, and explain how to apply the formalism in the presence of supersymmetry breaking to derive radiative corrections to the supersymmetric and soft supersymmetry-breaking operators. Our approach greatly simplifies the calculation and guarantees consistency of our results with the underlying supergravity framework.

Affiliated with

Also associated with

No associations

Rating

Destabilizing Divergences in Supergravity Theories at Two Loops does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Destabilizing Divergences in Supergravity Theories at Two Loops, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Destabilizing Divergences in Supergravity Theories at Two Loops will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-405844