One-loop soft supersymmetry breaking terms in superstring effective theories.

Journal Article · Wed Nov 01 04:00:00 EST 2000

OSTI ID:842951

Binetruy, Pierre ^[1]; Gaillard, Mary K; Nelson, Brent D

---

1. LBNL Library

We perform a systematic analysis of soft supersymmetry breaking terms at the one loop level in a large class of string effective field theories. This includes the so-called anomaly mediated contributions. We illustrate our results for several classes of orbifold models. In particular, we discuss a class of models where soft supersymmetry breaking terms are determined by quasi model independent anomaly mediated contributions, with possibly non-vanishing scalar masses at the one loop level. We show that the latter contribution depends on the detailed prescription of the regularization process which is assumed to represent the Planck scale physics of the underlying fundamental theory. The usual anomaly mediation case with vanishing scalar masses at one loop is not found to be generic. However gaugino masses and A-terms always vanish at tree level if supersymmetry breaking is moduli dominated with the moduli stabilized at self-dual points, whereas the manishing of the B-term depends on the origin of the mu-term in the underlying theory. We also discuss the supersymmetric spectrum of O-I and O-II models, as well as a model of gaugino condensation. For reference, explicit spectra corresponding to a Higgs mass of 114 GeV are given. Finally, we address general strategies for distinguishing among these models.

• Research Organization: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
• Sponsoring Organization: USDOE Director. Office of Science. Office of High Energy Physics; Nuclear Science Foundation Grants PHY-95-14797 and INT-9910077
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 842951
• Report Number(s): LBNL--46970; UCB-PTH-00/37, LPT-Orsay-00/87, hep-ph/0011081
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
FIELD THEORIES
ORIGIN
PHYSICS
SCALARS
SPECTRA
SUPERSYMMETRY
TREES
supersymmetry