Results 11 to 20 of about 363,778 (266)

Dark QED from inflation

Journal of High Energy Physics, 2021
One contribution to any dark sector’s abundance comes from its gravitational production during inflation. If the dark sector is weakly coupled to the inflaton and the Standard Model, this can be its only production mechanism.
Asimina Arvanitaki, Savas Dimopoulos, Marios Galanis, Davide Racco, Olivier Simon, Jedidiah O. Thompson   +5 more
doaj   +1 more source

Taxonomy of Dark Energy Models

Universe, 2021
The accelerated expansion of the Universe is one of the main discoveries of the past decades, indicating the presence of an unknown component: the dark energy.
Verónica Motta, Miguel A. García-Aspeitia, Alberto Hernández-Almada, Juan Magaña, Tomás Verdugo   +4 more
doaj   +1 more source

Spectroscopic needs for imaging dark energy experiments [PDF]

Astroparticle Physics, 2015
Ongoing and near-future imaging-based dark energy experiments are critically dependent upon photometric redshifts (a.k.a. photo-z's): i.e., estimates of the redshifts of objects based only on flux information obtained through broad filters. Higher-quality, lower-scatter photo-z's will result in smaller random errors on cosmological parameters; while ...
Newman, J., Abate, A., Abdalla, F., Allam, S., Allen, S., Ansari, R., Bailey, S., Barkhouse, W., Beers, T., Blanton, M., Brodwin, M., Brownstein, J., Brunner, R., Carrasco-Kind, M., Cervantes-Cota, J., Cheu, E., Chisari, E., Colless, M., Comparat, J., Coupon, J., Cunha, C., de La Macorra, A., Dell'Antonio, I., Frye, B., Gawiser, E., Gehrels, N., Grady, K., Hagen, A., Hall, P., Hearin, A., Hildebrandt, H., Hirata, C., Ho, S., Honscheid, K., Huterer, D., Ivezic, Z., Kneib, J. -P., Kruk, J., Lahav, O., Mandelbaum, R., Marshall, J., Matthews, D., Ménard, B., Miquel, R., Moniez, M., Moos, W., Moustakas, J., Papovich, C., Peacock, J., Park, C., Rhodes, J., Ricol, J.S., Sadeh, I., Slozar, A., Schmidt, S., Stern, D., Tyson, T., von Der Linden, A., Wechsler, R., Wood-Vasey, W., Zentner, A., Myers, A.D., Rahman, M.   +62 more
openaire   +3 more sources

Cold Dark Matter: A Gluonic Bose–Einstein Condensate in Anti-de Sitter Space Time

Universe, 2021
In the same way as the realization of some of the famous gedanken experiments imagined by the founding fathers of quantum mechanics has recently led to the current renewal of the interpretation of quantum physics, it seems that the most recent progress ...
Gilles Cohen-Tannoudji, Jean-Pierre Gazeau   +1 more
doaj   +1 more source

Holographic Dark Information Energy: Predicted Dark Energy Measurement

Entropy, 2013
Several models have been proposed to explain the dark energy that is causing universe expansion to accelerate. Here the acceleration predicted by the Holographic Dark Information Energy (HDIE) model is compared to the acceleration that would be produced ...
Michael Paul Gough
doaj   +1 more source

Dark matter capture by atomic nuclei

Physics Letters B, 2020
We propose a new strategy to search for a particular type of dark matter via nuclear capture. If the dark matter particle carries baryon number, as motivated by a class of theoretical explanations of the matter-antimatter asymmetry of the universe, it ...
Bartosz Fornal, Benjamín Grinstein, Yue Zhao   +2 more
doaj   +1 more source

Investigating dark energy experiments with principal components [PDF]

Journal of Cosmology and Astroparticle Physics, 2009
A significantly expanded version with an added PCA for weak lensing, a new detailed discussion of the correlation prior proposed in this work, and a new discussion outlining the differences between the Bayesian and the frequentist approaches to reconstructing w(z). Matches the version accepted to JCAP.
Crittenden, Robert, Pogosian, L., Zhao, Gong-bo   +2 more
openaire   +4 more sources

A Dynamic Dark Information Energy Consistent with Planck Data

Entropy, 2014
The 2013 cosmology results from the European Space Agency Planck spacecraft provide new limits to the dark energy equation of state parameter. Here we show that Holographic Dark Information Energy (HDIE), a dynamic dark energy model, achieves an optimal ...
Michael Paul Gough
doaj   +1 more source

Designing dark energy afterglow experiments

Physical Review D, 2012
Chameleon fields, which are scalar field dark energy candidates, can evade fifth force constraints by becoming massive in high-density regions. However, this property allows chameleon particles to be trapped inside a vacuum chamber with dense walls.
Upadhye, Amol, Steffen, Jason H., Chou, Aaron S.   +2 more
openaire   +3 more sources

Mirror dark matter will be confirmed or excluded by XENON1T

Physics Letters B, 2017
Mirror dark matter, where dark matter resides in a hidden sector exactly isomorphic to the standard model, can be probed via direct detection experiments by both nuclear and electron recoils if the kinetic mixing interaction exists.
J.D. Clarke, R. Foot
doaj   +1 more source