Results 21 to 30 of about 20,804,533 (246)
Reach of Fermilab Tevatron upgrades for SU(5) supergravity models with nonuniversal gaugino masses [PDF]
, 2000 We explore the reach of luminosity upgrades of the Fermilab Tevatron collider for SU(5) supergravity models in which non-universal GUT-scale gaugino masses arise via a vacuum expectation value for the auxiliary component of a superfield that transforms ...
Greg W. Anderson +4 more
openalex +3 more sources
Supergravity EFTs and swampland constraints [PDF]
Proceedings of Corfu Summer Institute 2022 "School and Workshops on Elementary Particle Physics and Gravity" — PoS(CORFU2022), 2023 In these proceedings, we review recent progress in analyzing the behavior of lower-dimensional supergravity theories when combined with swampland conjectures. We show that within supergravity the effectiveness and usefulness of swampland conjectures gets
N. Cribiori, F. Farakos
semanticscholar +1 more source
Jackiw-Teitelboim supergravity, minimal strings, and matrix models
, 2021 The author studies a family of two-dimensional Jackiw--Teitelboim (JT) supergravites, and, by using string theory techniques, he gives them a complete definition to all orders in the topological expansion.
Clifford V. Johnson
semanticscholar +1 more source
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
openaire +3 more sources
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
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
openaire +5 more sources
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
doaj +1 more source
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
openaire +4 more sources
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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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