Results 31 to 40 of about 1,034,510 (257)

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

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

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

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, Marcelo Ipinza, Lucrezia Ravera, Evelyn Rodríguez   +3 more
doaj   +1 more source

On the Starobinsky model of inflation from supergravity [PDF]

Nuclear Physics B, 2013
We discuss how the higher-derivative Starobinsky model of inflation originates from N=1 supergravity. It is known that, in the old-minimal supergravity description written by employing a chiral compensator in the superconformal framework, the Starobinsky model is equivalent to a no-scale model with F-term potential.
F. Farakos, A. Kehagias, A. Riotto
openaire   +5 more sources

On sgoldstino-less supergravity models of inflation [PDF]

Journal of High Energy Physics, 2014
We go a step further in the search for a consistent and realistic supergravity model of large-field inflation by building a class of models with the following features: during slow-roll, all the scalar fields other than the inflaton are frozen by large inflaton-dependent masses or removed from the spectrum; at the end of inflation, supersymmetry is ...
Fabio Zwirner, Fabio Zwirner, Gianguido Dall'Agata   +2 more
openaire   +4 more sources

Gravitino properties in a conformal supergravity model [PDF]

Physical Review D, 2013
In the context of a conformal Supergravity (SUGRA) model in the Einstein frame, in which the (next to) minimal supersymmetric standard model can embedded naturally to produce chaotic inflation scenarios, we study properties of gravitino in the cases where it is stable or unstable.
Vassilis C. Spanos, Nikolaos Mavromatos, Nikolaos Mavromatos   +2 more
openaire   +3 more sources

Poisson–Lie transformations and generalized supergravity equations

European Physical Journal C: Particles and Fields, 2021
In this paper we investigate Poisson–Lie transformation of dilaton and vector field $${\mathcal {J}}$$ J appearing in generalized supergravity equations. While the formulas appearing in literature work well for isometric sigma models, we present examples
Ladislav Hlavatý, Ivo Petr
doaj   +1 more source

Updated constraints on the minimal supergravity model [PDF]

Journal of High Energy Physics, 2006
We provide an up-to-date analysis of the parameter space of the minimal supergravity model (mSUGRA). Novel features include the new central value of the top quark mass, an improved calculation of the masses of the supersymmetric particles and the neutral Higgs bosons, constraints from b to s \ell^+ \ell^- decays, and a careful treatment of the most ...
Manuel Drees, Manuel Drees, Abdelhak Djouadi, J. L. Kneur   +3 more
openaire   +6 more sources