Results 41 to 50 of about 21,105,413 (272)
On the equivalence of Starobinsky and Higgs inflationary models in gravity and supergravity [PDF]
Journal of Physics A: Mathematical and Theoretical, 2019 Starobinsky inflation and Higgs inflation in gravity, and their equivalence based on the common inflationary potential are extended to supergravity in the proper framework, where the Starobinsky and Higgs descriptions of inflation arise in two different ...
S. Ketov
semanticscholar +1 more source
Supergravity models with 50–100 TeV scalars, supersymmetry discovery at the LHC, and gravitino decay constraints [PDF]
, 2017 We investigate the possibility of testing supergravity unified models with scalar masses in the range 50-100 TeV and much lighter gaugino masses at the Large Hadron Collider. The analysis is carried out under the constraints that models produce the Higgs
A. Aboubrahim, P. Nath
semanticscholar +1 more source
Primordial black hole production in inflationary models of supergravity with a single chiral superfield [PDF]
Physical Review D, 2018 We propose a double inflection point inflationary model in supergravity with a single chiral superfield. Such a model allows for the generation of primordial black holes(PBHs) at small scales, which can account for a significant fraction of dark matter ...
Tie-Jun Gao, Zongkuan Guo
semanticscholar +1 more source
New duality-invariant models for nonlinear supersymmetric electrodynamics
Journal of High Energy Physics, 2023 We propose a new family of U(1) duality-invariant models for nonlinear N $$ \mathcal{N} $$ = 1 supersymmetric electrodynamics coupled to supergravity.
Sergei M. Kuzenko, Jake C. Stirling
doaj +1 more source
Symmetries of supergravity backgrounds and supersymmetric field theory
Journal of High Energy Physics, 2020 In four spacetime dimensions, all N $$ \mathcal{N} $$ = 1 supergravity-matter systems can be formulated in the so-called U(1) superspace proposed by Howe in 1981.
Sergei M. Kuzenko +1 more
doaj +1 more source
Cosmological attractor models and higher curvature supergravity [PDF]
Journal of High Energy Physics, 2014 A bstractWe study cosmological α-attractors in superconformal/supergravity models, where α is related to the geometry of the moduli space. For α = 1 attractors [1] we present a generalization of the previously known manifestly superconformal higher ...
S. Cecotti, R. Kallosh
semanticscholar +2 more sources
Chromo-natural inflation in Supergravity
Physics Letters B, 2018 We present supergravity realizations of chromo-natural inflationary models. We show that by using superpotentials with “imaginary” holomorphic functions of the inflaton one can obtain effective theories of inflation that are also consistent truncations ...
Gianguido Dall'Agata
doaj +1 more source
Journal of High Energy Physics, 2020 For the first time in the physics literature, the Lorentz representations of all 2,147,483,648 bosonic degrees of freedom and 2,147,483,648 fermionic degrees of freedom in an unconstrained eleven dimensional scalar superfield are presented.
S. James Gates +2 more
doaj +1 more source
Non-relativistic three-dimensional supergravity theories and semigroup expansion method
Journal of High Energy Physics, 2021 In this work we present an alternative method to construct diverse non-relativistic Chern-Simons supergravity theories in three spacetime dimensions. To this end, we apply the Lie algebra expansion method based on semigroups to a supersymmetric extension
Patrick Concha +3 more
doaj +1 more source
False Vacuum Chaotic Inflation: The New Paradigm? [PDF]
, 1994 Recent work is reported on inflation model building in the context of supergravity and superstrings, with special emphasis on False Vacuum (`Hybrid') Chaotic Inflation.
A. D. Linde +9 more
core +2 more sources