HOW TO LIMIT RADIATIVE CORRECTIONS TO THE COSMOLOGICAL CONSTANT BY M^4_Susy

Details HOW TO LIMIT RADIATIVE CORRECTIONS TO THE COSMOLOGICAL CONSTANT BY M^4_Susy HOW TO LIMIT RADIATIVE CORRECTIONS TO THE COSMOLOGICAL CONSTANT BY M^4_Susy

1995-01-06

arxiv.org/abs/hep-ph/9501227v1

Phys.Lett. B349 (1995) 57-62

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, plain Tex, no figures

Scientific paper

10.1016/0370-2693(95)00218-A

Supergravity models are constructed in which the effective low energy theory contains only ``super-soft'' explicit supersymmetry breaking: masses of the scalars and pseudoscalars within a multiplet are split in opposite directions. With this form of supersymmetry breaking the radiative corrections of the matter sector to the vacuum energy are bounded by ${\cal O} (M^4_{Susy})$ to all orders in perturbation theory, and we require $Str M^2 = 0$ including the hidden sector. The models are based on K\"ahler potentials obtained in recent orbifold compactifications, and we describe the construction of realistic theories.

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