Results 31 to 40 of about 690,483 (329)
New interactions in the dark sector mediated by dark energy [PDF]
, 2008 Cosmological observations have revealed the existence of a dark matter sector, which is commonly assumed to be made up of one particle species only. However, this sector might be more complicated than we currently believe: there might be more than one ...
Anthony W. Brookfield +4 more
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Cold dark matter hypotheses in the MSSM [PDF]
Physics Letters B, 2011 version to appear in Physcis Letters ...
AbdusSalam, S. S., Quevedo, F.
openaire +2 more sources
Dark matter candidate from torsion
Physics Letters B, 2022 The stable pseudo-scalar degree of freedom of the quadratic Poincaré Gauge theory of gravity is shown to be a suitable dark matter candidate. We find the parameter space of the theory which can account for all the predicted cold dark matter, and ...
Álvaro de la Cruz Dombriz +2 more
doaj +1 more source
Searching for cold dark matter [PDF]
Journal of Physics G: Nuclear and Particle Physics, 1996 Latex file, 25 pages , 2 figures (available by fax)
openaire +2 more sources
Gravitational Lensing as a Probe of Cold Dark Matter Subhalos
Advances in Astronomy, 2010 In the cold dark matter scenario, dark matter halos are assembled hierarchically from smaller subunits. Some of these subunits are disrupted during the merging process, whereas others survive temporarily in the form of subhalos.
Erik Zackrisson, Teresa Riehm
doaj +1 more source
Constraints on interacting dark energy models through cosmic chronometers and Gaussian process
European Physical Journal C: Particles and Fields, 2021 In this paper, after reconstructing the redshift evolution of the Hubble function by adopting Gaussian process techniques, we estimate the best-fit parameters for some flat Friedmann cosmological models based on a modified Chaplygin gas interacting with ...
Muhsin Aljaf +2 more
doaj +1 more source
Axions as hot and cold dark matter [PDF]
Journal of Cosmology and Astroparticle Physics, 2014 The presence of a hot dark matter component has been hinted at 3 sigma by a combination of the results from different cosmological observations. We examine a possibility that pseudo Nambu-Goldstone bosons account for both hot and cold dark matter components.
Jeong, Kwang Sik +2 more
openaire +4 more sources
Dark Matter in Theories of Gauge-Mediated Supersymmetry Breaking [PDF]
, 1996 In gauge-mediated theories supersymmetry breaking originates in a strongly interacting sector and is communicated to the ordinary sparticles via SU(3)$\times$SU(2)$\times$U(1) carrying ``messenger'' particles.
A. Pomarol +41 more
core +2 more sources
A new recipe for $$\Lambda $$ Λ CDM
European Physical Journal C: Particles and Fields, 2017 It is well known that a canonical scalar field is able to describe either dark matter or dark energy but not both. We demonstrate that a non-canonical scalar field can describe both dark matter and dark energy within a unified setting.
Varun Sahni, Anjan A. Sen
doaj +1 more source
, 2008 Caustics are a generic feature of the nonlinear growth of structure in the dark matter distribution. If the dark matter were absolutely cold, its mass density would diverge at caustics, and the integrated annihilation probability would also diverge for ...
Alard +23 more
core +1 more source