Results 111 to 120 of about 2,875,148 (209)

Ultrafast Time-Integrated Diagnosis of Laser-Heated Deuterium Ions in Dense Plasma via Fusion Neutron Spectra

open access: yesUltrafast Science
The ultrafast time-integrated diagnosis of ions plays a vital role in high-energy-density physics research. However, it is extremely challenging to measure in experiment.
Jie Feng   +13 more
doaj   +1 more source

Source Count Distribution of Fermi LAT Gamma-Ray Blazars Using Novel Nonparametric Methods

open access: yesUniverse
We utilized a sample from the Fermi-LAT 14-year Source Catalog by adjusting the flux detection threshold, enabling us to derive the intrinsic source count distribution dN/dF25 of extragalactic blazars using nonparametric, unbinned methods developed by ...
Xuhang Yin, Houdun Zeng
doaj   +1 more source

Transverse Oscillation of Prominence and Filament Induced by an Extreme-ultraviolet Wave from the Far Side of the Sun

open access: yesThe Astrophysical Journal
In this paper, we report our multi-angle observations of the transverse oscillation of a prominence and a filament induced by an EUV wave originating from the far side of the Sun on 2014 September 1. The prominence oscillation was simultaneously observed
Yanjie Zhang   +3 more
doaj   +1 more source

Searches for dark matter particles through cosmic ray measurements

open access: yes, 2002
We consider the hypothesis that dark matter is made of weakly interacting massive particles (WIMPs) and describe how their pair annihilation in the galactic halo generates exotic cosmic ray fluxes.
PIERO ULLIO, Ullio, Piero
core   +1 more source

Precise measurement of CP violating τ EDM through e + e − → γ *, ψ(2s) → τ + τ −

open access: yesJournal of High Energy Physics
A nonzero electric dipole moment of a tauon, d τ , signals CP violation and provides an important probe for new physics. We study methods to measure d τ at low energy e + e − colliders through the processes e + e − → γ *, ψ(2S) → τ + τ − with τ ± decays ...
Xiao-Gang He   +4 more
doaj   +1 more source

Dark matter in Sa galaxies: NGC 2179 and NGC 2775

open access: yes, 1998
We present measurements of the stellar and ionized gas velocity curves and velocity dispersion profiles along the major axis for two Sa galaxies, NGC 2179 and NGC 2775. The luminosity profiles and the stellar kinematics of each galaxy are used to compute
PIZZELLA, ALESSANDRO   +7 more
core  

Molecular hydrogen as dark mass in dwarf galaxies

open access: yes, 2004
We report here an example of a series of computer simulations of the formation of disk galaxies, including a standard cold dark matter component, gas, and star formation, which result in objects which closely resemble observed giant galaxies, with a ...
Nelson, AH   +7 more
core  

Dark Matter Ring and Dark Matter - Book: "Philosophy Unscrambles Dark Matter"

open access: yes, 2019
This section of the book deals with the official claim that Dark Matter Ring is like an evidence or at least a solid indicator for the the existence of dark matter. This section evaluates and rejects this claim.
openaire   +1 more source

Extending global fits of 4D Composite Higgs Models with partially composite leptons

open access: yesJournal of High Energy Physics
We perform the first convergent Bayesian global fits of 4D Composite Higgs Models with partially-composite third generation quarks and leptons based on the minimal SO(5) → SO(4) symmetry breaking pattern.
Ethan Carragher   +4 more
doaj   +1 more source

Is dark matter made up of massive quark objects? [Elektronisk resurs]

open access: yes, 1999
We suggest that dark matter is made up of massive quark objects that have survived from the Big Bang, representing the ground state of "baryonic'' matter. Hence, there was no overall phase transition of the original quark matter, but only a split-up into
Hansson, Johan,   +4 more
core  

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