Results 31 to 40 of about 20,804,533 (246)

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

AdS (super)projectors in three dimensions and partial masslessness

Journal of High Energy Physics, 2021
We derive the transverse projection operators for fields with arbitrary integer and half-integer spin on three-dimensional anti-de Sitter space, AdS3. The projectors are constructed in terms of the quadratic Casimir operators of the isometry group SO(2 ...
Daniel Hutchings, Sergei M. Kuzenko, Michael Ponds   +2 more
doaj   +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

SUPERGRAVITY UNIFIED MODELS [PDF]

, 1998
The development of supergravity unified models and their implications for current and future experiments are discussed.
Pran Nath, Richard L. Arnowitt
openaire   +3 more sources

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, Emmanouil S.N. Raptakis   +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

Adinkra foundation of component decomposition and the scan for superconformal multiplets in 11D, N $$ \mathcal{N} $$ = 1 superspace

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, Yangrui Hu, S.-N. Hazel Mak   +2 more
doaj   +1 more source

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