Results 121 to 130 of about 953,580 (282)
On supersymmetry breaking vacua from D-branes at orientifold singularities
Journal of High Energy Physics, 2019 We present a large class of models of D-branes at (orientifold) Calabi-Yau sin- gularities which enjoy dynamical supersymmetry breaking at low energy, by means of either the SU(5) or 3–2 supersymmetry breaking models. Once embedded in a warped throat or,
Riccardo Argurio +3 more
doaj +1 more source
, 1996 We show how spontaneous supersymmetry breaking in the vacuum state of higher-derivative supergravity is transmitted, as explicit soft supersymmetry-breaking terms, to the effective Lagrangian of the standard electroweak model.
Ahmed Hindawi +23 more
core +2 more sources
Soft branes in supersymmetry-breaking backgrounds [PDF]
, 2012 A bstractWe revisit the analysis of effective field theories resulting from nonsupersymmetric perturbations to supersymmetric flux compactifications of the type-IIB superstring with an eye towards those resulting from the backreaction of a small number ...
P. McGuirk, G. Shiu, Fang Ye
semanticscholar +1 more source
Asymptotic Behavior of Saxion–Axion System in Stringy Quintessence Model
Fortschritte der Physik, Volume 72, Issue 11, November 2024.Abstract The late time behavior of the slow‐roll parameter in the stringy quintessence model is studied when axion as well as saxion are allowed to move. Even though the potential is independent of the axion at tree level, the axion can move through its coupling to the saxion and the background geometry.
Min‐Seok Seo
wiley +1 more source
Hierarchical Supersymmetry Breaking in Superstring Derived Standard--like Models [PDF]
, 1994 We examine the problem of supersymmetry breaking in realistic superstring standard--like models which are constructed in the free fermionic formulation.
Faraggi, Alon E., Halyo, Edi
core +2 more sources
de Sitter State in Heterotic String Theory
Fortschritte der Physik, Volume 72, Issue 11, November 2024.Abstract Recent no‐go theorems have ruled out four‐dimensional classical de Sitter vacua in heterotic string theory. On the other hand, the absence of a well‐defined Wilsonian effective action and other related phenomena also appear to rule out such time‐dependent vacua with de Sitter isometries, even in the presence of quantum corrections.
Stephon Alexander +4 more
wiley +1 more source
Goldstino superfields in AdS_4
, 2013 Spontaneous breaking of global supersymmetries results in Goldstino fields which provide a nonlinear realisation of the supersymmetry algebra. A finite supersymmetry transformation of a Goldstino field can be used to generate a superfield whose ...
McArthur, I. N.
core +1 more source
Simple Scheme for Gauge Mediation [PDF]
, 2007 We present a simple scheme for constructing models that achieve successful gauge mediation of supersymmetry breaking. In addition to our previous work [1] that proposed drastically simplified models using metastable vacua of supersymmetry breaking in ...
G. ’t Hooft +3 more
core +2 more sources
Pure gravity mediation of supersymmetry breaking at the Large Hadron Collider [PDF]
, 2012 Supersymmetric theories which can allow for a 125 GeV Higgs mass and also solve the naturalness and susy flavor problems now require a fair degree of complexity.
B. Bhattacherjee +4 more
semanticscholar +1 more source
Species Scale and Primordial Gravitational Waves
Fortschritte der Physik, Volume 72, Issue 6, June 2024.Abstract The species scale is a field‐dependent UV cut‐off for any effective field theory weakly coupled to gravity. In this letter, it is shown that in the context of inflationary cosmology, a detection of primordial gravitational waves will set an upper bound on the decay rate |Λs′/Λs|$|\Lambda ^{\prime }_s/\Lambda _s|$ of the species scale ...
Marco Scalisi
wiley +1 more source