Results 51 to 60 of about 21,399,211 (273)
Higher Order Corrections in Minimal Supergravity Models of Inflation [PDF]
, 2013 We study higher order corrections in new minimal supergravity models of a single scalar field inflation. The gauging in these models leads to a massive vector multiplet and the D-term potential for the inflaton field with a coupling g2 ~ 10−10. In the de-
S. Ferrara +3 more
semanticscholar +1 more source
On the Starobinsky model of inflation from supergravity [PDF]
Nuclear Physics B, 2013 We discuss how the higher-derivative Starobinsky model of inflation originates from N=1 supergravity. It is known that, in the old-minimal supergravity description written by employing a chiral compensator in the superconformal framework, the Starobinsky model is equivalent to a no-scale model with F-term potential.
F. Farakos, A. Kehagias, A. Riotto
openaire +5 more sources
False Vacuum Chaotic Inflation: The New Paradigm? [PDF]
, 1994 Recent work is reported on inflation model building in the context of supergravity and superstrings, with special emphasis on False Vacuum (`Hybrid') Chaotic Inflation.
A. D. Linde +9 more
core +2 more sources
Primordial black holes as dark matter in supergravity inflation models [PDF]
, 2016 We propose a novel scenario to produce abundant primordial black holes (PBHs) in new inflation which is a second phase of a double inflation in the supergravity framework.
Masahiro Kawasaki +3 more
semanticscholar +1 more source
Gravitino properties in a conformal supergravity model [PDF]
Physical Review D, 2013 In the context of a conformal Supergravity (SUGRA) model in the Einstein frame, in which the (next to) minimal supersymmetric standard model can embedded naturally to produce chaotic inflation scenarios, we study properties of gravitino in the cases where it is stable or unstable.
Mavromatos, Nick E., Spanos, Vassilis C.
openaire +3 more sources
Generalized Supergravity Equations for the WZW Model [PDF]
Physics Letters B15 Pages, 1 Table, 2 Refs ...
Ali Eghbali +2 more
openalex +5 more sources
Glueball Mass Spectra and Other Issues for Supergravity Duals of QCD Models [PDF]
, 1998 We derive WKB expressions for glueball masses of various finite temperature supergravity models. The results are very close to recent numerical computations.
Minahan, Joseph A.
core +3 more sources
One-loop four-graviton amplitudes in ${\cal N}=4$ supergravity models [PDF]
, 2012 We evaluate with great details one-loop four-graviton field theory amplitudes in pure N=4 D=4 supergravity. The expressions are obtained by taking the field theory limit of (4,0) and (2,2) string theory models. For each model we extract the contributions
Piotr Tourkine, P. Vanhove
semanticscholar +1 more source
Updated constraints on the minimal supergravity model [PDF]
Journal of High Energy Physics, 2006 We provide an up-to-date analysis of the parameter space of the minimal supergravity model (mSUGRA). Novel features include the new central value of the top quark mass, an improved calculation of the masses of the supersymmetric particles and the neutral Higgs bosons, constraints from b to s \ell^+ \ell^- decays, and a careful treatment of the most ...
Djouadi, Abdelhak +2 more
openaire +4 more sources
Five-dimensional Superfield Supergravity [PDF]
, 2001 We present a projective superspace formulation for matter-coupled simple supergravity in five dimensions. Our starting point is the superspace realization for the minimal supergravity multiplet proposed by Howe in 1981.
Chate, H. +3 more
core +3 more sources