Results 51 to 60 of about 1,056,281 (276)

Activated sphalerons and large extra dimensions [PDF]

Physical Review D, 2002
We present a new scenario for the baryon number violation that may take place in models with large extra dimensions. Our idea is interesting because leptogenesis with a low reheating temperature requires an alternative source of the B+L violation to convert the produced leptons into baryons.
openaire   +2 more sources

Large Top Mixing from Extra Dimensions [PDF]

, 2001
10 pages, contribution to NATO Advanced Study Institute 2000 "Recent Developments in Particle Physics and Cosmology"
del Aguila, F., Santiago, J.
openaire   +2 more sources

Localization of U(1) gauge vector field on flat branes with five-dimension (asymptotic) AdS5 spacetime

Journal of High Energy Physics, 2018
In order to localize U(1) gauge vector field on Randall-Sundrum-like braneworld model with infinite extra dimension, we propose a new kind of non-minimal coupling between the U(1) gauge field and the gravity.
Zhen-Hua Zhao, Qun-Ying Xie
doaj   +1 more source

New Supernova Limit on Large Extra Dimensions [PDF]

, 2001
If large extra dimensions exist in nature, supernova (SN) cores will emit large fluxes of Kaluza-Klein gravitons, producing a cosmic background of these particles with energies and masses up to about 100 MeV.
Hannestad, Steen, Raffelt, Georg
core   +2 more sources

Cosmological perturbations from five-dimensional inflation

Journal of High Energy Physics
It was recently proposed that five-dimensional inflation can relate the causal size of the observable universe to the present weakness of gravitational interactions by blowing up an extra compact dimension from the microscopic fundamental length of ...
Ignatios Antoniadis, Jules Cunat, Anthony Guillen   +2 more
doaj   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Quasibound and quasinormal modes of a thick brane in Rastall gravity

Journal of High Energy Physics
In this work, we study the gravitational quasinormal modes of the thick brane in Rastall gravity. Using the asymptotic iteration and direct integration methods, we solve the quasinormal frequencies of the Rastall thick brane.
Qin Tan, Yi Zhong, Wen-Di Guo
doaj   +1 more source

Spinors fields in co-dimension one braneworlds

Journal of High Energy Physics, 2018
In this work we analyze the zero mode localization and resonances of 1/2−spin fermions in co-dimension one Randall-Sundrum braneworld scenarios. We consider delta-like, domain walls and deformed domain walls membranes.
W.M. Mendes, G. Alencar, R.R. Landim
doaj   +1 more source

Constraints on Theories With Large Extra Dimensions [PDF]

, 1999
Recently, a number of authors have challenged the conventional assumption that the string scale, Planck mass, and unification scale are roughly comparable. It has been suggested that the string scale could be as low as a TeV.
Banks, Tom, Dine, Michael, Nelson, Ann
core   +5 more sources

Cosmological constraints on large extra dimensions [PDF]

Physics Letters B, 2001
8 pages, 2 figures, accepted in ...
openaire   +3 more sources