Results 31 to 40 of about 21,105,413 (272)
ON QUANTUM MODEL OF SUPERGRAVITY COMPENSATOR [PDF]
Modern 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
I.L. Buchbinder, A. Yu. Petrov
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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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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
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Primordial black holes and gravitational waves from nonminimally coupled supergravity inflation [PDF]
Physical Review D, 2022 We study the formation of primordial black holes and the generation of gravitational waves in a class of cosmological models that are direct supersymmetric analogs of the observationally favored nonminimally coupled Higgs inflation model.
Shinsuke Kawai, Jinsu Kim
semanticscholar +1 more source
Baryogenesis in supergravity inflationary models [PDF]
Physics 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
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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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1D Supergravity FLRW Model of Starobinsky [PDF]
Universe, 2021 We study two homogeneous supersymmetric extensions for the f(R) modified gravity model of Starobinsky with the FLRW metric. The actions are defined in terms of a superfield R that contains the FLRW scalar curvature. One model has N = 1 local supersymmetry, and its bosonic sector is the Starobinsky action; the other action has N = 2, its bosonic sector ...
Nephtalí E. Martínez-Pérez +2 more
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Reconstruction of α-attractor supergravity models of inflation [PDF]
, 2017 In this paper, we apply reconstruction techniques to recover the potential parameters for a particular class of single-field models, the $\ensuremath{\alpha}$-attractor (supergravity) models of inflation. This also allows us to derive the inflaton vacuum
A. Marco, P. Cabella, N. Vittorio
semanticscholar +1 more source
Axino mass in supergravity models [PDF]
Physics Letters B, 1995 Latex, 12 pages, no ...
E. J. Chun, A. Lukas, A. Lukas
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AdS (super)projectors in three dimensions and partial masslessness
Journal of High Energy Physics, 2021 We derive the transverse projection operators for fields with arbitrary integer and half-integer spin on three-dimensional anti-de Sitter space, AdS3. The projectors are constructed in terms of the quadratic Casimir operators of the isometry group SO(2 ...
Daniel Hutchings +2 more
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