Results 41 to 50 of about 1,021,360 (234)
Horndeski model in nonlinearly realized supergravity [PDF]
Journal of High Energy Physics, 2019 Abstract We construct the Horndeski Lagrangian within non-linearly realized super- gravity. We will show that the bosonic part of the Horndeski Lagrangian can be realized. Gravitino naturally couples to Horndeski sector in a super-covariant way. Such gravitino couplings are also free from ghosts.
Jun'ichi Yokoyama +2 more
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Building models of inflation in no-scale supergravity [PDF]
International Journal of Modern Physics D, 2020 After reviewing the motivations for cosmological inflation formulated in the formalism of supersymmetry, we argue that the appropriate framework is that of no-scale supergravity. We then show how to construct within this framework inflationary models whose predictions for the tilt in the spectrum of scalar perturbations, [Formula: see text], and the ...
Natsumi Nagata +9 more
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Hyper-dilaton Weyl multiplet of 4D, N $$ \mathcal{N} $$ = 2 conformal supergravity
Journal of High Energy Physics, 2022 We define a new dilaton Weyl multiplet of N $$ \mathcal{N} $$ = 2 conformal supergravity in four dimensions. This is constructed by reinterpreting the equations of motion of an on-shell hypermultiplet as constraints that render some of the fields of the ...
Gregory Gold +3 more
doaj +1 more source
Enriques and octonionic magic supergravity models [PDF]
Journal of High Energy Physics, 2008 We reconsider the Enriques Calabi Yau (FHSV) model and its string derivation and argue that the Octonionic magic supergravity theory admits a string interpretation closely related to the Enriques model. The uplift to D=6 of the Octonionic magic model has 16 abelian vectors related to the rank of Type I and Heterotic strings.
Sergio Ferrara +3 more
openaire +4 more sources
From Minkowski to de Sitter in multifield no-scale models
Journal of High Energy Physics, 2019 We show the uniqueness of superpotentials leading to Minkowski vacua of single-field no-scale supergravity models, and the construction of dS/AdS solutions using pairs of these single-field Minkowski superpotentials.
John Ellis +4 more
doaj +1 more source
Super throats with non trivial scalars
Journal of High Energy Physics, 2020 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
On the supersymmetry invariance of flat supergravity with boundary [PDF]
JHEP 01 (2019) 192, 2018 The supersymmetry invariance of flat supergravity (i.e., supergravity in the absence of any internal scale in the Lagrangian) in four dimensions on a manifold with non-trivial boundary is explored. Using a geometric approach we find that the supersymmetry invariance of the Lagrangian requires to add appropriate boundary terms.
arxiv +1 more source
de Sitter supergravity model building [PDF]
Physical Review D, 2015 15 ...
Timm Wrase, Renata Kallosh
openaire +3 more sources
Supergravity backgrounds of the η-deformed AdS2 × S2 × T6 and AdS5 × S5 superstrings
Journal of High Energy Physics, 2019 We construct supergravity backgrounds for the integrable η-deformations of the AdS2 × S2 × T6 and AdS5 × S5 superstring sigma models. The η-deformation is governed by an R-matrix that solves the non-split modified classical Yang-Baxter equation on the ...
Ben Hoare, Fiona K. Seibold
doaj +1 more source
Swampland conjectures for type IIB orientifolds with closed-string U(1)s
Journal of High Energy Physics, 2020 We study the weak gravity conjecture, the swampland distance conjecture and the emergence proposal for N $$ \mathcal{N} $$ = 1 orientifold compactifications of type IIB string theory with O3-/O7-planes. We allow for orientifold projections with h + 2 , 1
Martín Enríquez Rojo, Erik Plauschinn
doaj +1 more source