Results 11 to 20 of about 91,637 (344)

Gravity and Large Extra Dimensions [PDF]

open access: yesAdvances in Astronomy, 2011
The idea that quantum gravity can be realized at the TeV scale is extremely attractive to theorists and experimentalists alike. This proposal leads to extra spacial dimensions large compared to the Planck scale.
V. H. Satheeshkumar, P. K. Suresh
doaj   +5 more sources

Cosmological constraints on large extra dimensions [PDF]

open access: greenPhysics Letters B, 2001
We calculate the production of massive Kaluza-Klein (KK) modes via nucleon-nucleon gravi-bremsstrahlung in the early universe. Overproduction of these states would result in early matter domination and, therefore, a low age for the universe so it is ...
Malcolm Fairbairn, Fairbairn, M
core   +6 more sources

Leptogenesis in Theories with Large Extra Dimensions [PDF]

open access: bronzePhysical Review D, 1999
We study the scenario of baryogenesis through leptogenesis in higher-dimensional theories, in which the scale of quantum gravity may be as low as few TeV.
Pilaftsis, Apostolos
core   +5 more sources

Signatures of large extra dimensions [PDF]

open access: yesInternational Journal of Modern Physics D, 2004
String theory suggests modifications of our spacetime such as extra dimensions and the existence of a mininal length scale. In models with addidional dimensions, the Planck scale can be lowered to values accessible by future colliders. Effective theories
Bleicher, M.   +7 more
core   +5 more sources

Asymmetrical large extra dimensions [PDF]

open access: greenPhysics Letters B, 2000
12 pages, 1 figure, improved discussion of collider ...
Joseph Lykken, Satyanarayan Nandi
openalex   +4 more sources

Braneworlds and Large Extra Dimensions [PDF]

open access: yesAIP Conference Proceedings, 2003
The idea of extra dimensions has always played an important rôle in string theory. However, until recently, most of the interest has been on small extra dimensions.
Liu, James T.
core   +3 more sources

Stellar evolution and large extra dimensions [PDF]

open access: green, 2000
We discuss in detail the information on large extra dimensions which can be derived in the framework of stellar evolution theory and observation. The main effect of large extra dimensions arises from the production of the Kaluza-Klein (KK) excitations of
CASTELLANI, VITTORIO   +9 more
core   +2 more sources

No-go theorems on localization of gravity around higher codimensional branes in noncompact extra dimensions

open access: yesJournal of High Energy Physics, 2021
We study the brane world scenario of a single brane (or a single stack of branes) with codimension higher than one. When the extra dimensions are not small, localization of gravity around the brane is needed in order to reproduce the observable four ...
Shing Yan Li
doaj   +2 more sources

Detecting large extra dimensions with optomechanical levitated sensors

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
Many experiments have been conducted to detect hypothetical large extra dimensions from sub-millimeter to solar system separations. However, direct evidence for such extra dimensions has not been found.
Jian Liu, Ka-Di Zhu
doaj   +2 more sources

Weak gravity conjecture with large extra dimensions

open access: yesPhysics Letters B, 2008
In the presence of large extra dimensions, the fundamental Planck scale can be much lower than the apparent four-dimensional Planck scale. In this setup, the weak gravity conjecture implies a much more stringent constraint on the UV cutoff for the U(1 ...
Huang, Qing-Guo
core   +3 more sources

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