Results 31 to 40 of about 6,544,802 (296)

Hot new early dark energy: Towards a unified dark sector of neutrinos, dark energy and dark matter

open access: yesPhysics Letters B, 2022
Hot new early dark energy describes a supercooled, first-order phase transition that takes place at sub-eV temperatures in the dark sector. It lowers the sound horizon, which provides a possible solution to the Hubble tension, and, at the same time, it ...
Florian Niedermann, Martin S. Sloth
doaj   +1 more source

Innovation Management of Enterprise Archives in the Context of Digital Transformation

open access: yesZhishi guanli luntan, 2020
[Purpose/significance] Digital transformation has an increasingly deep and strong impact on all aspects of archives management, exploring innovative management of enterprise archives in such context would provide a reference to open up a new path of ...
Chen Hui, Luo Huiyu, Wang Xiaoxiao, Zhang Kai
doaj   +1 more source

Constrains on the electric charges of the binary black holes with GWTC-1 events

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
Testing black hole’s charged property is a fascinating topic in modified gravity and black hole astrophysics. In the first Gravitational-Wave Transient Catalog (GWTC-1), ten binary black hole merger events have been formally reported, and these ...
Hai-Tang Wang   +5 more
doaj   +1 more source

Dark Energy [PDF]

open access: yesJournal of Physics: Conference Series, 2011
Dark energy models account for the present accelerated expansion of the universe. Many models were suggested and investigated, based on very different physical principles. We will review some representative models emphasizing similarities and differences between these various approaches.
openaire   +2 more sources

DARK ENERGY WITHOUT DARK ENERGY [PDF]

open access: yesDark Matter in Astroparticle and Particle Physics, 2008
32 pages, 8 figures; Invited contribution to appear in the Proceedings of the Dark2007 Conference, Sydney, Australia, Sept 2007, eds H. Klapdor-Kleingrothaus and G.F. Lewis, (World Scientific, Singapore, 2008)
openaire   +2 more sources

Dark Energy And Life's Ultimate Future [PDF]

open access: yes, 2006
The discovery of the present accelerated expansion of space changed everything regarding cosmology and life's ultimate prospects. Both the optimistic scenarios of an ever (but decelerated) expanding universe and of a collapsing universe seem to be no ...
Ruediger Vaas, Vaas, Ruediger
core   +1 more source

Spherical symmetry in a dark energy permeated space-time [PDF]

open access: yes, 2012
The properties of a spherically symmetric static space-time permeated of dark energy are worked out. Dark energy is viewed as the strain energy of an elastically deformable four dimensional manifold. The metric is worked out in the vacuum region around a
Sereno, Mauro   +4 more
core   +1 more source

Search for dark matter candidates and large extra dimensions in events with a jet and missing transverse momentum with the ATLAS detector [PDF]

open access: yes, 2012
ATLAS Collaboration Contributors: Paul Douglas Jackson and Nitesh SoniA search for new phenomena in events with a high-energy jet and large missing transverse momentum is performed using data from proton-proton collisions at √s = 7 TeV with the ATLAS ...
The ATLAS collaboration   +999 more
core   +5 more sources

Unified Dark Matter models with fast transition [PDF]

open access: yes, 2010
We investigate the general properties of Unified Dark Matter (UDM) fluid models where the pressure and the energy density are linked by a barotropic equation of state (EoS) p = p(ρ) and the perturbations are adiabatic.
Davide Pietrobon   +12 more
core   +1 more source

On dark matter and dark energy

open access: yesЛитьë и металлургия, 2020
The dark matter hypothesis was created to explain the reason for the preservation of stellar clusters from dispersion. The weak point of this hypothesis is the great age of space, which is 13.8 billion years.
V. Yu. Stetsenko, A. V. Stetsenko
doaj   +1 more source

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