Results 41 to 50 of about 21,399,211 (273)
Cosmological attractor models and higher curvature supergravity [PDF]
Journal of High Energy Physics, 2014 A bstractWe study cosmological α-attractors in superconformal/supergravity models, where α is related to the geometry of the moduli space. For α = 1 attractors [1] we present a generalization of the previously known manifestly superconformal higher ...
S. Cecotti, R. Kallosh
semanticscholar +2 more sources
Chromo-natural inflation in Supergravity
Physics Letters B, 2018 We present supergravity realizations of chromo-natural inflationary models. We show that by using superpotentials with “imaginary” holomorphic functions of the inflaton one can obtain effective theories of inflation that are also consistent truncations ...
Gianguido Dall'Agata
doaj +1 more source
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 +2 more
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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 +3 more
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Minimal four-family supergravity model [PDF]
Physical Review D, 1996 56 pages, requires phyzzx.tex, tables.tex, figures not included, full postscript files including figures via anonymous ftp at ftp://ucdhep.ucdavis.edu/gunion/ , get 4gen.ps, 4gen_figs1to12.ps, and 4gen_figs13to19 ...
Gunion, J. F. +2 more
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On the gauged Kähler isometry in minimal supergravity models of inflation [PDF]
, 2014 In this paper we address the question how to discriminate whether the gauged isometry group 𝒢Σ of the Kähler manifold Σ that produces a D‐type inflaton potential in a Minimal Supergravity Model is elliptic, hyperbolic or parabolic.
S. Ferrara, P. Fré, A. Sorin
semanticscholar +1 more source
New class of N=1 no-scale supergravity models. [PDF]
Physical Review Letters, 2013 We introduce a new N=1 no-scale supergravity model with F- and D-term breaking. It contains a single chiral supermultiplet T and a single U(1) vector multiplet U, gauging a nonanomalous axionic shift symmetry.
G. Dall’Agata, F. Zwirner
semanticscholar +1 more source
Tree Level Supergravity and the Matrix Model [PDF]
Nuclear Physics B, 1998 It has recently been shown that the Matrix model and supergravity give the same predictions for three graviton scattering. This contradicts an earlier claim in the literature (hep-th/9710174). We explain the error in this earlier work, and go on to show that certain terms in the $n$-graviton scattering amplitude involving $v^{2n}$ are given correctly ...
Michael Dine +2 more
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Constraints on supergravity chaotic inflationary models [PDF]
Physics Letters B, 1996 Latex file, 10 pages; important changes and references ...
Bento, M. C., Bertolami, O.
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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
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