Results 121 to 130 of about 2,978 (222)

Brans-Dicke supergravity and the Lambda naturalness problem [PDF]

open access: yes, 2015
The successful $\Lambda CDM$ cosmological model requires a small but nonzero $\Lambda$ which appears to have an unnaturally small value compared to the supersymmetry breaking scale, typically $O(10^{-60}) m_{3/2}^4$ for $m_{3/2} \sim 10 TeV$.
Hewitt, M.
core  

Laplacian spectrum on a nilmanifold, truncations and effective theories

open access: yesJournal of High Energy Physics, 2018
Motivated by low energy effective theories arising from compactification on curved manifolds, we determine the complete spectrum of the Laplacian operator on the three-dimensional Heisenberg nilmanifold.
David Andriot, Dimitrios Tsimpis
doaj   +1 more source

Symmetry TFTs from String Theory. [PDF]

open access: yesCommun Math Phys, 2023
Apruzzi F   +4 more
europepmc   +1 more source

Noncompact gaugings, chiral reduction and dual sigma models in supergravity

open access: yes, 2006
We show that the half-maximal SU(2) gauged supergravity with a topological mass term admits coupling of an arbitrary number of n vector multiplets.
Jong, D.C.,   +5 more
core   +1 more source

Supersymmetric small-field inflation with tribrid superpotentials [PDF]

open access: yes, 2016
In this thesis, we study supersymmetric models of tribrid inflation and new inflation, both of which can be realized with a tribrid superpotential. In the first part, we focus on tribrid inflation, deriving relations between cosmological observables ...
Nolde, David
core   +1 more source

Aether, dark energy and string compactifications. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci, 2022
Townsend PK.
europepmc   +1 more source

Renormalizability Properties of Supergravity [PDF]

open access: yes, 1977
The possible local counterterms in supergravity are investigated to all loop orders. Supersymmetry implies that (1) supergravity-matter coupling is one-loop nonrenormalizable, with a specific counterterm; (2) pure supergravity is renormalizable at both ...
Stelle, K. S., Deser, S., Kay, J. H.
core  

Five-dimensional superfield supergravity

open access: yes, 2008
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.
Tartaglino-Mazzucchelli, Gabriele   +1 more
core   +1 more source

Lepton flavour violation in realistic non-minimal supergravity models

open access: yes, 2006
Realistic effective supergravity models have a variety of sources of lepton flavour violation (LFV) which can drastically affect the predictions relative to the scenarios usually considered in the literature based on minimal supergravity and the ...
Hayes, J.G., Peddie, I.N.R., King, S.F.
core   +1 more source

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