Results 141 to 150 of about 961,253 (282)

Octonionic Magical Supergravity, Niemeier Lattices, and Exceptional & Hilbert Modular Forms

open access: yesFortschritte der Physik, Volume 72, Issue 2, February 2024.
Abstract The quantum degeneracies of Bogomolny‐Prasad‐Sommerfield (BPS) black holes of octonionic magical supergravity in five dimensions are studied. Quantum degeneracy is defined purely number theoretically as the number of distinct states in charge space with a given set of invariant labels.
Murat Günaydin, Abhiram Kidambi
wiley   +1 more source

N=2 supersymmetry partial breaking and tadpole anomaly

open access: yesNuclear Physics B, 2015
We consider the U(1)n extension of the effective N=2 supersymmetric U(1)×U(1) model of arXiv:1204.2141; and study the explicit relationship between partial breaking of N=2 supersymmetry constraint and D3 brane tadpole anomaly of type IIB string on Calabi–
R. Ahl Laamara   +3 more
doaj   +1 more source

Chaotic inflation and supersymmetry breaking [PDF]

open access: yes, 2011
We investigate the recently proposed class of chaotic inflation models in supergravity with an arbitrary inflaton potential V({phi}). These models are extended to include matter fields in the visible sector and we employ a mechanism of supersymmetry ...
R. Kallosh   +3 more
semanticscholar   +1 more source

Mediation of supersymmetry breaking in quivers [PDF]

open access: yesJournal of High Energy Physics, 2011
LaTeX, 30 pages, 8 ...
Auzzi, Roberto   +2 more
openaire   +4 more sources

Decoding Nature with Nature's Tools: Heterotic Line Bundle Models of Particle Physics with Genetic Algorithms and Quantum Annealing

open access: yesFortschritte der Physik, Volume 72, Issue 2, February 2024.
Abstract The string theory landscape may include a multitude of ultraviolet embeddings of the Standard Model, but identifying these has proven difficult due to the enormous number of available string compactifications. Genetic Algorithms (GAs) represent a powerful class of discrete optimisation techniques that can efficiently deal with the immensity of
Steve A. Abel   +4 more
wiley   +1 more source

Superstring cosmology for N_4 = 1 -> 0 superstring vacua

open access: yes, 2010
We study the cosmology of perturbative heterotic superstring theory during the radiation-like era for semi-realistic backgrounds with initial $\N=1$ supersymmetry.
Albrecht   +89 more
core   +2 more sources

SU(7) Unification of SU(3)_C*SU(4)_W* U(1)_{B-L} [PDF]

open access: yes, 2011
We propose the SUSY SU(7) unification of the SU(3)_C* SU(4)_W* U(1)_{B-L} model. Such unification scenario has rich symmetry breaking chains in a five-dimensional orbifold.
A Font   +65 more
core   +3 more sources

Supersymmetry breaking due to moduli stabilization in string theory [PDF]

open access: yes, 2011
We consider the phenomenological consequences of fixing compactification moduli. In the simplest KKLT constructions, stabilization of internal dimensions is rather soft: weak scale masses for moduli are generated, and are of order m_\sigma ~ m_{3/2}.
Andrei Linde, Y. Mambrini, K. Olive
semanticscholar   +1 more source

A Study of the Early Cosmic Dynamics in a Multifield Model of Inflation and Curvature Perturbations

open access: yesAdvances in Astronomy, Volume 2024, Issue 1, 2024.
In this work, we study the cosmological dynamics of the early universe by employing a small field potential in the context of multifield inflation. By investigating analytically the cosmological observables, such as the number of e‐folds N, potential slow‐roll parameters ϵV, ηV, and spectral index ns which carry significant information, we show that ...
Muhammad Zahid Mughal   +4 more
wiley   +1 more source

Inflation and Gauge Mediation in Supersymmetric Gauge Theory

open access: yes, 2011
We propose a simple high-scale inflationary scenario based on a phenomenologically viable model with direct gauge mediation of low-scale supersymmetry breaking. Hybrid inflation is occurred in a hidden supersymmetry breaking sector. Two hierarchical mass
Nakai, Yuichiro, Sakai, Manabu
core   +1 more source

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