Results 81 to 90 of about 21,312,209 (267)
Generalized IIB supergravity from exceptional field theory [PDF]
The background underlying the $\eta$-deformed $AdS_5\times S^5$ sigma-model is known to satisfy a generalization of the IIB supergravity equations. Their solutions are related by T-duality to solutions of type IIA supergravity with non-isometric linear dilaton.
arxiv +1 more source
Supersymmetry and supergravity models
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.
openaire +3 more sources
Consistent truncations from the geometry of sphere bundles
In this paper, we present a unified perspective on sphere consistent truncations based on the classical geometric properties of sphere bundles. The backbone of our approach is the global angular form for the sphere.
Federico Bonetti+3 more
doaj +1 more source
We propose a novel class of $\mathcal{N}=1$ supergravity (called ``Relaxed supergravity'') that can enlarge the space of scalar potentials, relaxing the strongly-constrained form of the prototype supergravity potential. It has very long been considered that in $\mathcal{N}=1$ supergravity a negative term of scalar potential can be given only by the ...
arxiv
5 pages, LaTeX, 1 figure (included).
Wang, X., Lopez, J., Nanopoulos, D.
openaire +2 more sources
Scrutinizing supergravity models through neutrino telescopes. [PDF]
Galactic halo neutralinos ([chi]) 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 ...
R. Gandhi+4 more
semanticscholar +1 more source
Classical Yang-Baxter equation from β-supergravity
Yang-Baxter deformations of superstring σ-models have recently inspired a supergravity solution generating technique. Using the open/closed string map and a Killing bi-vector as a deformation parameter, new solutions can be built, such that the ...
Ilya Bakhmatov, Edvard T. Musaev
doaj +1 more source
Super throats with non trivial scalars
We find new BPS solutions in N = 2 D = 4 Fayet-Iliopoulos gauged super- gravity with STU prepotential. These are stationary solutions carrying a Kerr-Newman throat spacetime geometry and are everywhere regular.
D. Astesiano, S.L. Cacciatori
doaj +1 more source
Accurate neutralino relic density computations in supergravity models. [PDF]
We investigate the question of the proper thermal averaging of neutralino annihilation amplitudes which possess poles and thresholds, as they impact on the calculated neutralino relic density and therefore on the cosmological viability of supersymmetric ...
López, Nanopoulos, Yuan
semanticscholar +1 more source
Measurements of the cosmic microwave background (CMB) favour models of inflation with a small tensor-to-scalar ratio r, as predicted by the Starobinsky R + R 2 model.
John Ellis+3 more
doaj +1 more source