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Title: Phenomenological aspects of heterotic orbifold models at one loop

Abstract

We provide a detailed study of the phenomenology of orbifold compactifications of the heterotic string within the context of supergravity effective theories. Our investigation focuses on those models where the soft Lagrangian is dominated by loop contributions to the various soft supersymmetry breaking parameters. Such models typically predict non-universal soft masses and are thus significantly different from minimal supergravity and other universal models. We consider the pattern of masses that are governed by these soft terms and investigate the implications of certain indirect constraints on supersymmetric models, such as flavor-changing neutral currents, the anomalous magnetic moment of the muon and the density of thermal relic neutralinos. These string-motivated models show novel behavior that interpolates between the phenomenology of unified supergravity models and models dominated by the superconformal anomaly.

Authors:
; ; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Director. Office of Science. Office of High Energy and Nuclear Physics. Division of High Energy Physics; National Science Foundation Grant PHY-00988-40
OSTI Identifier:
842733
Report Number(s):
LBNL-53419
R&D Project: PTHOPS; TRN: US0503667
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; LAGRANGIAN FUNCTION; MAGNETIC MOMENTS; MUONS; NEUTRAL CURRENTS; SUPERGRAVITY; SUPERSYMMETRY

Citation Formats

Birkedal-Hansen, A., Binetruy, P., Mambrini, Y., and Nelson, B.. Phenomenological aspects of heterotic orbifold models at one loop. United States: N. p., 2003. Web. doi:10.2172/842733.
Birkedal-Hansen, A., Binetruy, P., Mambrini, Y., & Nelson, B.. Phenomenological aspects of heterotic orbifold models at one loop. United States. doi:10.2172/842733.
Birkedal-Hansen, A., Binetruy, P., Mambrini, Y., and Nelson, B.. Tue . "Phenomenological aspects of heterotic orbifold models at one loop". United States. doi:10.2172/842733. https://www.osti.gov/servlets/purl/842733.
@article{osti_842733,
title = {Phenomenological aspects of heterotic orbifold models at one loop},
author = {Birkedal-Hansen, A. and Binetruy, P. and Mambrini, Y. and Nelson, B.},
abstractNote = {We provide a detailed study of the phenomenology of orbifold compactifications of the heterotic string within the context of supergravity effective theories. Our investigation focuses on those models where the soft Lagrangian is dominated by loop contributions to the various soft supersymmetry breaking parameters. Such models typically predict non-universal soft masses and are thus significantly different from minimal supergravity and other universal models. We consider the pattern of masses that are governed by these soft terms and investigate the implications of certain indirect constraints on supersymmetric models, such as flavor-changing neutral currents, the anomalous magnetic moment of the muon and the density of thermal relic neutralinos. These string-motivated models show novel behavior that interpolates between the phenomenology of unified supergravity models and models dominated by the superconformal anomaly.},
doi = {10.2172/842733},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 05 00:00:00 EDT 2003},
month = {Tue Aug 05 00:00:00 EDT 2003}
}

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