Results 41 to 50 of about 21,619,463 (236)
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
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
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
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
Large (g-2) micro in SU(5) x U(1) supergravity models. [PDF]
Physical Review D, Particles and fields, 1993 We compute the supersymmetric contribution to the anomalous magnetic moment of the muon within the context of $SU(5)\times U(1)$ supergravity models. The largest possible contributions to $a^{susy}_\mu$ occur for the largest allowed values of $\tan\beta$
J. L. Lopez, D. Nanopoulos, Xu Wang
semanticscholar +1 more source
Symplectic Deformations of Gauged Maximal Supergravity [PDF]
, 2014 We identify the space of symplectic deformations of maximal gauged supergravity theories. Coordinates of such space parametrize inequivalent supergravity models with the same gauge group.
Dall'Agata, Gianguido +2 more
core +1 more source
Non-abelian fermionic T-duality in supergravity
Journal of High Energy Physics, 2021 Field transformation rules of the standard fermionic T-duality require fermionic isometries to anticommute, which leads to complexification of the Killing spinors and results in complex valued dual backgrounds.
Lev Astrakhantsev +2 more
doaj +1 more source
Impacts of supersymmetric higher derivative terms on inflation models in supergravity [PDF]
, 2015 We show the effects of supersymmetric higher derivative terms on inflation models in supergravity. The results show that such terms generically modify the effective kinetic coefficient of the inflaton during inflation if the cut off scale of the higher ...
Shuntaro Aoki, Y. Yamada
semanticscholar +1 more source
From Minkowski to de Sitter in multifield no-scale models
Journal of High Energy Physics, 2019 We show the uniqueness of superpotentials leading to Minkowski vacua of single-field no-scale supergravity models, and the construction of dS/AdS solutions using pairs of these single-field Minkowski superpotentials.
John Ellis +4 more
doaj +1 more source
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