Results 31 to 40 of about 20,674,433 (271)

ON QUANTUM MODEL OF SUPERGRAVITY COMPENSATOR [PDF]

Modern Physics Letters A, 1996
A new N=1 superfield model in D=4 flat superspace is suggested. This model describes dynamics of chiral compensator and can be treated as a low-energy limit of D=4, N=1 quantum superfield supergravity. Renormalization structure of this model is studied and one-loop counterterms are calculated. It is shown that the theory is infrared-free. An effective
I.L. Buchbinder, A. Yu. Petrov
openaire   +3 more sources

Weyl covariance, and proposals for superconformal prepotentials in 10D superspaces

Journal of High Energy Physics, 2021
Proposals are made to describe the Weyl scaling transformation laws of supercovariant derivatives ∇ A , the torsion supertensors T AB C , and curvature supertensors R ABc d in 10D superspaces. Starting from the proposal that an unconstrained supergravity
S. James Gates, Yangrui Hu, S.-N. Hazel Mak   +2 more
doaj   +1 more source

Reconstruction of α-attractor supergravity models of inflation [PDF]

, 2017
In this paper, we apply reconstruction techniques to recover the potential parameters for a particular class of single-field models, the $\ensuremath{\alpha}$-attractor (supergravity) models of inflation. This also allows us to derive the inflaton vacuum
A. Marco, P. Cabella, N. Vittorio
semanticscholar   +1 more source

Axino mass in supergravity models [PDF]

Physics Letters B, 1995
Latex, 12 pages, no ...
E. J. Chun, A. Lukas, A. Lukas
openaire   +3 more sources

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

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

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

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