Results 41 to 50 of about 1,667,560 (344)

WIMP Dark Matter and Baryogenesis

open access: yes, 2010
In the present universe visible and dark matter contribute comparable energy density although they have different properties. This coincidence can be elegantly explained if the dark matter relic density, originating from a dark matter asymmetry, is fully
Gu, Pei-Hong   +3 more
core   +1 more source

Leptophilic dark matter [PDF]

open access: yesPhysical Review D, 2009
We describe a simple model of Dark Matter, which explains the PAMELA/ATIC excesses while being consistent with all present constraints. The DAMA annual modulation signal can also be explained for some values of the parameters. The model consists of a Dark Sector containing a weakly coupled broken U(1) gauge symmetry, under which only the Dark Matter ...
Fox, Patrick J., Poppitz, Erich
openaire   +2 more sources

Dark Matter in the Coming Decade: Complementary Paths to Discovery and Beyond

open access: yes, 2015
In this report we summarize the many dark matter searches currently being pursued through four complementary approaches: direct detection, indirect detection, collider experiments, and astrophysical probes.
Bauer, Daniel   +18 more
core   +1 more source

Probable evidence for a transient mega-electron volt emission line in the GRB 221023A

open access: yesNature Communications
Detection of spectral line in gamma-ray bursts (GRBs) is importance for studying GRB physics, as it provides insights into the composition and physical conditions of the GRB environment.
Lu-Yao Jiang   +8 more
doaj   +1 more source

Codecaying Dark Matter

open access: yesPhysical Review Letters, 2016
6 pages, 3 figures; matches version on PRL with updated ...
Dror, Jeff Asaf   +2 more
openaire   +4 more sources

Spectator dark matter [PDF]

open access: yesPhysical Review D, 2018
The observed dark matter abundance in the Universe can be fully accounted for by a minimally coupled spectator scalar field that was light during inflation and has sufficiently strong self-coupling. In this scenario, dark matter was produced during inflation by amplification of quantum fluctuations of the spectator field.
Markkanen, T, Rajantie, A, Tenkanen, T
openaire   +4 more sources

Gravitational effects of condensate dark matter on compact stellar objects

open access: yes, 2012
We study the gravitational effect of non-self-annihilating dark matter on compact stellar objects. The self-interaction of condensate dark matter can give high accretion rate of dark matter onto stars.
Cheng, K. S., Li, Xinyu, Wang, Fayin
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

The annihilation cross section of dark matter which is driven by scalar unparticle

open access: yes, 2013
We analyze the annihilation cross section of dark matter which interacts with the standard model sector over the scalar unparticle propagator. We observe that the annihilation cross section of dark matter pair is sensitive to the dark matter mass and the
Iltan, E. O.
core   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

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