On Classical Stability with Broken Supersymmetry

Autor: Ivano Basile, Augusto Sagnotti, J. Mourad
Přispěvatelé: AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Basile, I., Mourad, J., Sagnotti, A.
Rok vydání: 2018
Předmět:
High Energy Physics - Theory
Nuclear and High Energy Physics
Initial singularity
dimension: 9
Scalar (mathematics)
Superstring Vacua
D-brane
FOS: Physical sciences
General Relativity and Quantum Cosmology (gr-qc)
01 natural sciences
orientifold: vacuum state
General Relativity and Quantum Cosmology
Theoretical physics
High Energy Physics::Theory
Poincare
High Energy Physics - Phenomenology (hep-ph)
Orientifold
0103 physical sciences
Brane cosmology
mixing
Supergravity Model
lcsh:Nuclear and particle physics. Atomic energy. Radioactivity
010306 general physics
correction: higher-order
supersymmetry: symmetry breaking
Physics
Heterotic string theory
stability: classical
Supersymmetry Breaking
010308 nuclear & particles physics
[PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th]
Supersymmetry
Supersymmetry breaking
effect: higher-order
Settore FIS/02 - Fisica Teorica
Modelli e Metodi Matematici
vacuum state: heterotic
High Energy Physics - Phenomenology
perturbation: scalar
High Energy Physics - Theory (hep-th)
parity
Z(2)
D-branes
[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
string
[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]
lcsh:QC770-798
Dilaton
Supergravity Models
dilaton: potential
Zdroj: Journal of High Energy Physics
Journal of High Energy Physics, Springer, 2019, 01, pp.174. ⟨10.1007/JHEP01(2019)174⟩
JHEP
JHEP, 2019, 01, pp.174. ⟨10.1007/JHEP01(2019)174⟩
Journal of High Energy Physics, Vol 2019, Iss 1, Pp 1-58 (2019)
Journal of High Energy Physics, 2019, 01, pp.174. ⟨10.1007/JHEP01(2019)174⟩
ISSN: 1126-6708
1029-8479
DOI: 10.48550/arxiv.1811.11448
Popis: We study the perturbative stability of four settings that arise in String Theory, when dilaton potentials accompany the breaking of Supersymmetry, in the USp(32) and U(32) orientifold models, and also in the heterotic SO(16)xSO(16) model. The first two settings are a family of AdS3xS7 orientifold vacua and a family of AdS7xS3 heterotic vacua, supported by form fluxes, with small world-sheet and string-loop corrections within wide ranges of parameters. In both cases we find some unstable scalar perturbations, as a result of mixings induced by fluxes, confirming for the first class of vacua a previous result. However, in the second class they only affect the l=1 modes, so that a Z2 projection induced by an overall internal parity suffices to eliminate them, leading to perturbative stability. Moreover, the constant dilaton profiles of these vacua allow one to extend the analysis to generic potentials, thus exploring the possible effects of higher-order corrections, and we exhibit wide nearby regions of perturbative stability. The solutions in the third setting have nine-dimensional Poincare' symmetry. They include regions with large world-sheet or string-loop corrections, but we show that these vacua have no perturbative instabilities. Finally, the last setting concerns cosmological solutions in ten dimensions where the "climbing" phenomenon takes place: they have bounded string-loop corrections but large world-sheet ones close to the initial singularity. We find that perturbations generally decay, but homogeneous tensor modes exhibit an interesting logarithmic growth that signals a breakdown of isotropy. If the Universe then proceeds to lower dimensions, milder potentials from other branes force all perturbations to remain bounded.
Comment: 59 pages, latex, 7 pdf figures. One reference added. Some comments also added in the Introduction and in Sections 2, 3, 4. Final version to appear in JHEP
Databáze: OpenAIRE
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