Results 11 to 20 of about 62,265 (304)

Neutrinos confronting large extra dimensions [PDF]

open access: yesPhysics Letters B, 2001
We study neutrino physics in a model with one large extra dimension. We assume the existence of two four-dimensional branes in the five-dimensional space-time, one for the ordinary particles and the other one for mirror particles, and we investigate neutrino masses and mixings in this scheme.
Maalampi, J., Sipilainen, V., Vilja, I.
openaire   +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   +1 more source

Natural quintessence and large extra dimensions [PDF]

open access: yesPhysical Review D, 2002
11 Pages, LaTeX, 4 ...
Albrecht, A.   +3 more
openaire   +2 more sources

The dark dimension in a warped throat

open access: yesPhysics Letters B, 2023
By combining swampland conjectures with observational data, it was suggested that our universe should lie in an asymptotic region of the quantum gravity landscape. The generalized distance conjecture for dS, the smallness of the cosmological constant and
Ralph Blumenhagen   +2 more
doaj   +1 more source

Casimir effect with one large extra dimension

open access: yes, 2021
In this work I study the Casimir effect of a massive complex scalar field in the presence of one large compactified extra dimension. I investigate the case of a scalar field confined between two parallel plates in the macroscopic three dimensions, and ...
Erdas, Andrea
core   +1 more source

Physics with large extra dimensions [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 2003
The recent understanding of string theory opens the possibility that the string scale can be as low as a few TeV. The apparent weakness of gravitational interactions can then be accounted by the existence of large internal dimensions, in the sub-millimeter region.
openaire   +3 more sources

Implications for the hierarchy problem, inflation and geodesic motion from fiber fabric of spacetime

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
In this paper, we represent a resolution for the hierarchy problem where the inverse size of the extra dimension and the fundamental Planck scale would all be of the order of the TeV scale by proposing a fiber fabric of spacetime. The origin of the large
Cao H. Nam
doaj   +1 more source

Astrophysical constraints on large extra dimensions [PDF]

open access: yesPhysics Letters B, 1999
In the Kaluza-Klein (KK) scenario with n large extra dimensions where gravity propagates in the 4+n dimensional bulk of spacetime while gauge and matter fields are confined to a four dimensional subspace, the light graviton KK modes can be produced in the Sun, red giants and supernovae. We study the energy-loss rates through photon-photon annihilation,
Barger, V.   +3 more
openaire   +2 more sources

Probing large extra dimensions with neutrinos [PDF]

open access: yesNuclear Physics B, 1999
LaTeX, 23 pages and 1 figure, slight revision of the manuscript, new discussion added, several formulas ...
Dvali, Gia, Smirnov, Alexei Yu.
openaire   +2 more sources

Signatures of extra dimensional sterile neutrinos

open access: yesPhysics Letters B, 2014
We study a large extra dimension model with active and sterile Dirac neutrinos. The sterile neutrino masses stem from compactification of an extra dimension with radius R and are chosen to have masses around eV or keV, in order to explain short-baseline ...
Werner Rodejohann, He Zhang
doaj   +1 more source

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