Results 141 to 150 of about 21,105,413 (272)
Species Scale and Primordial Gravitational Waves
Fortschritte der Physik, Volume 72, Issue 6, June 2024.Abstract The species scale is a field‐dependent UV cut‐off for any effective field theory weakly coupled to gravity. In this letter, it is shown that in the context of inflationary cosmology, a detection of primordial gravitational waves will set an upper bound on the decay rate |Λs′/Λs|$|\Lambda ^{\prime }_s/\Lambda _s|$ of the species scale ...
Marco Scalisi
wiley +1 more source
The N $$ \mathcal{N} $$ = 3 Weyl multiplet in four dimensions
Journal of High Energy Physics, 2019 The main ingredient for local superconformal methods is the multiplet of gauge fields: the Weyl multiplet. We construct the transformations of this multiplet for N $$ \mathcal{N} $$ = 3, D = 4. The construction is based on a supersymmetry truncation from
Jesse van Muiden, Antoine Van Proeyen
doaj +1 more source
Fortschritte der Physik, Volume 72, Issue 5, May 2024.Abstract The diffeomorphism class of simply connected smooth Calabi‐Yau threefolds with torsion‐free cohomology is determined via certain basic topological invariants: the Hodge numbers, the triple intersection form, and the second Chern class.
Aditi Chandra +4 more
wiley +1 more source
Flux quantization on 11-dimensional superspace
Journal of High Energy PhysicsFlux quantization of the C-field in 11d supergravity is arguably necessary for the (UV-)completion of the theory, in that it determines the torsion charges carried by small numbers N ≪ ∞ of M-branes.
Grigorios Giotopoulos +2 more
doaj +1 more source
Journal of High Energy Physics, 2017 Supergravity with eight supercharges in a four-dimensional Euclidean space is constructed at the full non-linear level by performing an off-shell time-like reduction of five-dimensional supergravity.
Bernard de Wit, Valentin Reys
doaj +1 more source
Journal of High Energy Physics, 2020 We will use the covariant superform approach to develop a new density formula for N $$ \mathcal{N} $$ = 2 conformal supergravity which is based on a fermionic multiplet whose lowest component is a dimension-5/2 spinor.
Subramanya Hegde, Bindusar Sahoo
doaj +1 more source
Quantization of the Bianchi type-IX model in supergravity with a cosmological constant
, 1994 Diagonal Bianchi type-IX models are studied in the quantum theory of $ N = 1 $ supergravity with a cosmological constant. It is shown, by imposing the supersymmetry and Lorentz quantum constraints, that there are no physical quantum states in this model.
A. D. Y. Cheng +24 more
core +1 more source
On the off-shell formulation of N = 2 supergravity with tensor multiplets
Journal of High Energy Physics, 2018 We revisit the construction of N = 2 superconformal multiplets using rheonomic superspace techniques. We apply the result to the derivation of off-shell Poincaré supersymmetric models where a tensor multiplet couples to gravity and to an arbitrary number
Niccolò Cribiori +1 more
doaj +1 more source
On the parameters of the minimal supergravity model
Zeitschrift f�r Physik C Particles and Fields, 1990 We study systematically the interplay of the parameters of the minimalN=1 supergravity model in a large domain of the parameter space. We make use of the renormalization group equations and the requirement of a correct electroweak symmetry breaking.
W. Majerotto, B. Mösslacher
openaire +2 more sources
Aspects of supersymmetry breaking driven inflation in orbifold models
European Physical Journal C: Particles and FieldsWe consider gravitationally induced corrections to inflaton potentials driven by supersymmetry breaking in a five-dimensional supergravity, compactified on a $$ S_1/Z_2 $$ S 1 / Z 2 orbifold. The supersymmetry breaking takes place on the hidden brane and
G. A. Diamandis +3 more
doaj +1 more source