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Quintessence models in supergravity [PDF]
Physical Review D, 2000 Scalar field models of quintessence typically require that the expectation value of the field today is of order the Planck mass, if we want them to explain the observed acceleration of the Universe. This suggests that we should be considering models in the context of supergravity.
Copeland, E. J. +2 more
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Testing primordial black holes as dark matter in supergravity from gravitational waves
Physics 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
Supergravities and branes from Hilbert-Poincaré series
Journal of High Energy Physics, 2023 The Molien-Weyl integral formula and the Hilbert-Poincaré series have proven to be powerful mathematical tools in relation to gauge theories, allowing to count the number of gauge invariant operators.
C. A. Cremonini +3 more
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Journal of High Energy Physics, 2021 Within the framework of N $$ \mathcal{N} $$ = 1 anti-de Sitter (AdS) supersymmetry in four dimensions, we derive superspin projection operators (or superprojectors). For a tensor superfield V α m α ⋅ n ≔ V α 1 … αm α ⋅ 1 … α ⋅ n $$ {\mathfrak{V}}_{\alpha
E. I. Buchbinder +3 more
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Minimal four-family supergravity model [PDF]
Physical Review D, 1996 56 pages, requires phyzzx.tex, tables.tex, figures not included, full postscript files including figures via anonymous ftp at ftp://ucdhep.ucdavis.edu/gunion/ , get 4gen.ps, 4gen_figs1to12.ps, and 4gen_figs13to19 ...
Gunion, J. F. +2 more
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Component decompositions and adynkra libraries for supermultiplets in lower dimensional superspaces
Journal of High Energy Physics, 2021 We present Adynkra Libraries that can be used to explore the embedding of multiplets of component field (whether on-shell or partial on-shell) within Salam-Strathdee superfields for theories in dimension nine through four.
S. James Gates +2 more
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Journal of High Energy Physics, 2021 We explicitly compute the component action of certain recently discovered new N $$ \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
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Multi-Field versus Single-Field in the Supergravity Models of Inflation and Primordial Black Holes
Universe, 2021 We review the models unifying inflation and Primordial Black Hole (PBH) formation, which are based on the modified (Starobinsky-type) supergravity. We begin with the basic (Starobinsky) inflationary model of modified gravity and its alpha-attractor-type ...
Sergei V. Ketov
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Minimal supergravity models of inflation [PDF]
Physical Review D, 2013 We present a superconformal master action for a class of supergravity models with one arbitrary function defining the Jordan frame. It leads to a gauge-invariant action for a real vector multiplet, which upon gauge fixing describes a massive vector multiplet, or to a dual formulation with a linear multiplet and a massive tensor field. In both cases the
Sergio Ferrara +3 more
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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 +2 more
doaj +1 more source