Results 41 to 50 of about 1,630,167 (297)

Dark matter from dark photons: A taxonomy of dark matter production [PDF]

open access: yesPhysical Review D, 2019
18 pages, 14 ...
Thomas Hambye   +3 more
openaire   +3 more sources

Impact of semi-annihilations on dark matter phenomenology - an example of Z_N symmetric scalar dark matter

open access: yes, 2012
We study the impact of semi-annihilations x_i x_j x_k X, where x_i is any dark matter and X is any standard model particle, on dark matter phenomenology.
Bélanger, G.   +3 more
core   +3 more sources

Dark Energy and Dark Matter

open access: yes, 2009
A brief overview of our current understanding of abundance and properties of dark energy and dark matter is presented. A more focused discussion of supersymmetric dark matter follows.
Olive, Keith A.
core   +1 more source

COMPOSITE DARK MATTER AND PUZZLES OF DARK MATTER SEARCHES [PDF]

open access: yesInternational Journal of Modern Physics D, 2010
Positive results of dark matter searches in DAMA/ NaI and DAMA/LIBRA experiments, being put together with the results of other groups, can imply nontrivial particle physics solutions for cosmological dark matter. Stable particles with charge -2, bound with primordial helium in O -helium "atoms" ( OHe ), represent a specific warmer than cold nuclear ...
Khlopov, Maxim   +2 more
openaire   +4 more sources

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

Investigation of Prominence Oscillations with High-Resolution Observations from the New Vacuum Solar Telescope

open access: yesUniverse
In this paper, we investigate the thread oscillations in a quiescent prominence observed by New Vacuum Solar Telescope at the Hα line center on 17 April 2024.
Mingbao Gao   +7 more
doaj   +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

An Investigation of the Loop Oscillations after a Solar Flare

open access: yesUniverse
We study the loop oscillations after a solar flare on 19 January 2023, in the active region N11E40 3196, which is well observed by the SDO/AIA. After tracing the loop position and fitting, we find that the loop oscillations have a period between 3 and 9 ...
Jun Xu   +5 more
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

A New Direction in Dark-Matter Complementarity: Dark-Matter Decay as a Complementary Probe of Multi-Component Dark Sectors

open access: yes, 2015
In single-component theories of dark matter, the $2\to 2$ amplitudes for dark-matter production, annihilation, and scattering can be related to each other through various crossing symmetries.
Dienes, Keith R.   +3 more
core   +1 more source

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