Results 11 to 20 of about 6,632,252 (160)

Jacobi–Lie Models and Supergravity Equations [PDF]

open access: yesProgress of Theoretical and Experimental Physics, 2023
Abstract Poisson–Lie T-duality/plurality was recently generalized to Jacobi–Lie T-plurality formulated in terms of double field theory and based on Leibniz algebras given by the structure coefficients fabc, fcab, and Za, Za. We investigate three- and four-dimensional sigma models corresponding to six-dimensional Leibniz algebras with ...
Ladislav Hlavatý, Ivo Petr
openaire   +4 more sources

Supersymmetry and supergravity models

open access: yesJournal of Physics G: Nuclear and Particle Physics, 1998
In this paper a review of the present status of supersymmetric (SUSY) and supergravity (SUGRA) models is presented, emphasizing the ambiguities one encounters in constructing a SUSY or SUGRA version of the standard model.
Ross, GG, Ross, Graham
openaire   +3 more sources

$R_b$ in supergravity models [PDF]

open access: yes, 1995
5 pages, LaTeX, 1 figure (included).
Wang, X., Lopez, J., Nanopoulos, D.
openaire   +3 more sources

Scrutinizing supergravity models through neutrino telescopes [PDF]

open access: yesPhysical Review D, 1994
Galactic halo neutralinos ($χ$) captured by the Sun or Earth produce high-energy neutrinos as end-products of various annihilation modes. These neutrinos can travel from the Sun or Earth cores to the neighborhood of underground detectors (``neutrino telescopes") where they can interact and produce upwardly-moving muons.
Gandhi, Raj   +4 more
openaire   +4 more sources

Fermionic T-duality and U-duality in type II supergravity [PDF]

open access: yes, 2011
PhDThis thesis deals with the two duality symmetries of N = 2 D = 10 supergravity theories that are descendant from the full superstring theory: fermionic T-duality and U-duality.
Bakhmatov, Ilya
core   +4 more sources

Testing primordial black holes as dark matter in supergravity from gravitational waves

open access: yesPhysics Letters B, 2021
We explore the Gravitational Waves (GW) phenomenology of a simple class of supergravity models that can explain and unify inflation and Primordial Black Holes (PBH) as Dark Matter (DM).
Yermek Aldabergenov   +2 more
doaj   +1 more source

ON QUANTUM MODEL OF SUPERGRAVITY COMPENSATOR [PDF]

open access: yesModern 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
Buchbinder, I. L., Petrov, A. Yu.
openaire   +2 more sources

Component actions of liberated N $$ \mathcal{N} $$ = 1 supergravity and new Fayet-Iliopoulos terms in superconformal tensor calculus

open access: yesJournal of High Energy Physics, 2021
We explicitly compute the component action of certain recently discovered new N $$ \mathcal{N} $$ = 1 supergravity actions which enlarge the space of scalar potentials allowed by supersymmetry and also contain fermionic interaction terms that become ...
Hun Jang, Massimo Porrati
doaj   +1 more source

Baryogenesis in supergravity inflationary models [PDF]

open access: yesPhysics Letters B, 1985
Realistic N=1 supergravity theories with a gravitino mass of order 1 TeV require a period of inflation to dilute the gravitino abundance. Moreover, if the gravitino is unstable the reheat temperature is bounded to be no greater than O(108 GeV). We show that such models may still have acceptable rates of baryosynthesis and discuss possible mechanisms.
Department of Theoretical Physics Keble Road, Oxford OX1 3NP, UK ( host institution )   +6 more
openaire   +4 more sources

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

open access: yesJournal 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   +2 more
doaj   +1 more source

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