Gravitational radiative corrections in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>N</mml:mi><mml:mo>=</mml:mo><mml:mn>1</mml:mn><mml:mn /></mml:math>supergravity

Chiou-Lahanas, C.; Kapella-Economou, A.; Ab, Lahanas; Xn, Maintas

doi:10.1103/physrevd.45.534

Cited by 5 publications

(14 citation statements)

References 80 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several potentially dangerous contributions to the effective scalar potential are contained within (16), among them a term with the structure of (2)…”

Section: Divergent Contributions At One Loop To the Effective Scalar mentioning

confidence: 99%

See 1 more Smart Citation

On quadratic divergences in supergravity, vacuum energy and the supersymmetric flavor problem

Gaillard¹,

Nelson²

2006

Nuclear Physics B

View full text Add to dashboard Cite

We examine the phenomenological consequences of quadratically divergent contributions to the scalar potential in supergravity effective Lagrangians. We focus specifically on the effect of these corrections on the vacuum configuration of scalar fields in softly-broken supersymmetric theories and the role these corrections play in generating non-diagonal soft scalar masses. Both effects can only be properly studied when the divergences are regulated in a manifestly supersymmetric manner -something which has thus far been neglected in past treatments. We show how a supersymmetric regularization can impact past conclusions about both types of phenomena and discuss what types of high-energy theories are likely to be safe from unwanted flavor-changing neutral current interactions in the context of supergravity theories derived from heterotic string compactifications.

show abstract

“…Several potentially dangerous contributions to the effective scalar potential are contained within (16), among them a term with the structure of (2)…”

Section: Divergent Contributions At One Loop To the Effective Scalar mentioning

confidence: 99%

“…This entails a correction to Eqs. (15), (16) and (20) of that paper; the correct relations are given in [32,33]. In Eq.…”

Section: Appendix a -General Scalar Mass Formulaementioning

confidence: 99%

On quadratic divergences in supergravity, vacuum energy and the supersymmetric flavor problem

Gaillard¹,

Nelson²

2006

Nuclear Physics B

View full text Add to dashboard Cite

show abstract

“…Here we present the full results for a general supergravity theory coupled to chiral matter with an arbitrary background space-time metric and arbitrary background scalar fields. Partial results for a curved-space time metric have been given in [6], [7], and particularly in [8], where it was shown how to recast the Einstein term in canonical form by a redefinition of the background metric. However, the results are gauge dependent [9], and therefore not very meaningful unless one can isolate those terms that actually contribute to the S-matrix.…”

Section: Introductionmentioning

confidence: 99%

Supergravity coupled to chiral matter at one loop

1994

View full text Add to dashboard Cite

We extend earlier calculations of the one-loop contributions to the effective bose Lagrangian in supergravity coupled to chiral matter. We evaluate all logarithmically divergent contributions for arbitrary background scalar fields and space-time metric. We show that, with a judicious choice of gauge fixing and of the definition of the action expansion, much of the result can be absorbed into a redefinition of the metric and a renormalization of the Kähler potential. Most of the remaining terms depend on the curvature of the Kähler metric. Further simplification occurs in models obtained from superstrings in which the Kähler Riemann tensor is covariantly constant.

show abstract

“…In this sense, combining our results with those of [1] and [8], we have identified all the ultraviolet divergent terms at one loop in effective bosonic lagrangian of supergravity theories, and determined the coefficients of the logarithmically divergent terms, for a flat space-time background metric. The generalization to a curved background metric is implicit in the combined results of [5], [7], [10] and (for noncanonical gauge kinetic energy) the curvature dependent parts of the operators (27)-(34) that we did not explicitly evaluate here.…”

Section: Discussionmentioning

confidence: 99%