Results 41 to 50 of about 2,199,115 (208)

Current LHC Constraints on Minimal Universal Extra Dimensions [PDF]

open access: yes, 2017
In this letter, we present LHC limits on the minimal universal extra dimension (MUED) model from LHC Run 1 data and current limits from searches of the ongoing Run 2.
N. Deutschmann, T. Flacke, Jong Soo Kim
semanticscholar   +1 more source

Inflation from extra dimensions [PDF]

open access: yesPhysics Letters B, 1995
15 pages, LaTeX file, 4 ...
openaire   +2 more sources

Space Dimension Renormdynamics

open access: yesParticles, 2020
We aim to construct a potential better suited for studying quarkonium spectroscopy. We put the Cornell potential into a more geometrical setting by smoothly interpolating between the observed small and large distance behaviour of the quarkonium potential.
Martin Bures, Nugzar Makhaldiani
doaj   +1 more source

Model building by coset space dimensional reduction scheme using eight-dimensional coset spaces

open access: yesJournal of High Energy Physics, 2023
We investigate the twelve-dimensional gauge-Higgs unification models with an eight- dimensional coset space as the extra space. For each model, we apply the coset space dimensional reduction procedure and examine the particle contents of the resulting ...
Kento Asai   +4 more
doaj   +1 more source

Compact extra dimensions as the source of primordial black holes

open access: yesFrontiers in Astronomy and Space Sciences, 2022
This article discusses a model of primordial black hole (PBH) formation at the reheating stage. These small/massive black holes appear due to the specific properties of the compact extra dimensions.
Valery V. Nikulin   +3 more
doaj   +1 more source

Inhomogeneous compact extra dimensions [PDF]

open access: yes, 2017
We show that an inhomogeneous compact extra space possesses two necessary features— their existence does not contradict the observable value of the cosmological constant Λ4 in pure f(R) theory, and the extra dimensions are stable relative to the "radion ...
K. Bronnikov   +7 more
semanticscholar   +1 more source

Living orthogonally: quasi-universal extra dimensions

open access: yesJournal of High Energy Physics, 2019
The minimal Universal Extra Dimension scenario is highly constrained owing to opposing constraints from the observed relic density on the one hand, and the non-observation of new states at the LHC on the other.
Mathew Thomas Arun   +2 more
doaj   +1 more source

Packing extra mass in compact stellar structures: an interplay between Kalb-Ramond field and extra dimensions [PDF]

open access: yes, 2017
We have derived the Buchdahl's limit for a relativistic star in presence of the Kalb-Ramond field in four as well as in higher dimensions. It turns out that the Buchdahl's limit gets severely affected by the inclusion of the Kalb-Ramond field.
S. Chakraborty, S. Sengupta
semanticscholar   +1 more source

Extra dimensions and inflation [PDF]

open access: yesPhysics Letters B, 1999
It has been proposed that, without invoking supersymmetry, it is possible to solve the hierarchy problem provided the fundamental scale in the higher dimensional theory is at a much lower scale than the Planck scale. In this paper we consider a toy model where we allow $4+d$ dimensions to evolve from a region determined by the new fundamental scale ...
openaire   +2 more sources

Einstein-Gauss-Bonnet Gravity with Extra Dimensions

open access: yesGalaxies, 2019
We consider a theory of modified gravity possessing d extra spatial dimensions with a maximally symmetric metric and a scale factor, whose ( 4 + d ) -dimensional gravitational action contains terms proportional to quadratic curvature scalars ...
Carsten van de Bruck, Chris Longden
doaj   +1 more source

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