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Title: Moduli stabilization, F-term uplifting, and soft supersymmetry breaking terms

Abstract

We study moduli stabilization with F-term uplifting. As a source of uplifting F-term, we consider spontaneous supersymmetry breaking models, e.g. the Polonyi model and the Intriligator-Seiberg-Shih model. We analyze potential minima by requiring almost vanishing vacuum energy and evaluate the size of modulus F-term. We also study soft SUSY-breaking terms. In our scenario, the mirage mediation is dominant in gaugino masses. Scalar masses can be comparable with gaugino masses or much heavier, depending on couplings with spontaneous supersymmetry breaking sector.

Authors:
 [1];  [2];  [3];  [4]
  1. Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502 (Japan)
  2. Department of Physics, Tohoku University, Sendai 980-8578 (Japan)
  3. Department of Physics, Kyoto University, Kyoto 606-8502 (Japan)
  4. Department of Physics, Kyoto University, Kyoto 606-8501 (Japan)
Publication Date:
OSTI Identifier:
21010932
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevD.75.025019; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; COSMOLOGY; POTENTIALS; QUANTUM FIELD THEORY; REST MASS; SCALARS; SPARTICLES; STABILIZATION; SUPERSYMMETRY; SYMMETRY BREAKING

Citation Formats

Abe, Hiroyuki, Higaki, Tetsutaro, Kobayashi, Tatsuo, and Omura, Yuji. Moduli stabilization, F-term uplifting, and soft supersymmetry breaking terms. United States: N. p., 2007. Web. doi:10.1103/PHYSREVD.75.025019.
Abe, Hiroyuki, Higaki, Tetsutaro, Kobayashi, Tatsuo, & Omura, Yuji. Moduli stabilization, F-term uplifting, and soft supersymmetry breaking terms. United States. doi:10.1103/PHYSREVD.75.025019.
Abe, Hiroyuki, Higaki, Tetsutaro, Kobayashi, Tatsuo, and Omura, Yuji. Mon . "Moduli stabilization, F-term uplifting, and soft supersymmetry breaking terms". United States. doi:10.1103/PHYSREVD.75.025019.
@article{osti_21010932,
title = {Moduli stabilization, F-term uplifting, and soft supersymmetry breaking terms},
author = {Abe, Hiroyuki and Higaki, Tetsutaro and Kobayashi, Tatsuo and Omura, Yuji},
abstractNote = {We study moduli stabilization with F-term uplifting. As a source of uplifting F-term, we consider spontaneous supersymmetry breaking models, e.g. the Polonyi model and the Intriligator-Seiberg-Shih model. We analyze potential minima by requiring almost vanishing vacuum energy and evaluate the size of modulus F-term. We also study soft SUSY-breaking terms. In our scenario, the mirage mediation is dominant in gaugino masses. Scalar masses can be comparable with gaugino masses or much heavier, depending on couplings with spontaneous supersymmetry breaking sector.},
doi = {10.1103/PHYSREVD.75.025019},
journal = {Physical Review. D, Particles Fields},
number = 2,
volume = 75,
place = {United States},
year = {Mon Jan 15 00:00:00 EST 2007},
month = {Mon Jan 15 00:00:00 EST 2007}
}
  • In this work, we examine the role of F-term uplifting in stabilizing moduli within the framework of heterotic string theory. In turns out that the uplifting sector plays an important role in stabilizing both the dilaton and the volume modulus. To fix the volume modulus at a self-dual point of modular invariant potential, the modular weight of uplifting field is required to satisfy certain conditions. Generalizing to the case with an anomalous U(1) gauge symmetry, we also study its implications for supersymmetry breaking. It is found that the U(1) sector gives contributions to soft terms which are generically comparable tomore » the dilaton mediated contributions.« less
  • We discuss the role of F-term uplifting in stabilizing moduli within the framework of heterotic string theory. It turns out that the uplifting sector plays an important role in fixing the volume modulus at one of the self-dual points of a modular invariant potential. For the volume modulus stabilized at a self-dual point, the F-term uplifting leads to the dilation stabilization which can naturally yield the mirage mediation pattern of soft supersymmetry breaking terms. Generalizing to the case with anomalous U(1) gauge symmetry, we also find that the U(1) sector generically gives a contribution to sfermion masses comparable to themore » dilaton-mediated one while maintaining the mirage mediation pattern.« less
  • We discuss the coupling of heavy moduli fields to light fields when the dynamics of the latter, absent such couplings, yields metastable vacua. We show that the survival of the vacuum structure of the local model depends nontrivially on the cross couplings of the two sectors. In particular we find that for local models (such as those realized by D-branes in type II string theories) with metastable vacua breaking supersymmetry via F-terms, the cross coupling of the two sectors at an intermediate scale can push the metastable vacuum outside of the regime of the effective field theory. We parametrize themore » region in which the metastable vacua are safe. We then show that sufficiently small cross couplings can be made natural. Finally, we briefly discuss the role of moduli in stringy realizations of retrofitted SUSY-breaking sectors.« less
  • We calculate and explore the moduli potential for M theory compactified on G{sub 2}-manifolds in which the superpotential is dominated by a single membrane instanton term plus one from an asymptotically free hidden sector gauge interaction. We show that all moduli can be stabilized and that hidden sector gauge symmetries can be Higgsed at a high scale. We then compute the spectrum of superpartner masses at the grand unified theory scale and evolve it to the electroweak scale. We find a spectrum which is very similar to the G{sub 2}-minimal supersymmetric standard model with light gauginos - accessible at themore » LHC - and a neutral wino dark matter candidate.« less
  • A generic lesson of string theory is that the coupling constants of an effective low energy theory are determined by the vacuum values of a set of fields - the so-called moduli - some of which are stabilized at relatively low masses by nonperturbative effects. We argue that the physics of these moduli cannot be separated from the issues of dynamical and gauge mediated supersymmetry breaking. To illustrate this point we present a modified version of the type IIB Kachru-Kallosh-Linde-Trivedi model where the criteria for gauge mediated supersymmetry breaking may be realized.