Results 61 to 70 of about 326,974 (218)
Asymmetric thermal-relic dark matter: Sommerfeld-enhanced freeze-out, annihilation signals and unitarity bounds [PDF]
Dark matter that possesses a particle-antiparticle asymmetry and has thermalised in the early universe, requires a larger annihilation cross-section compared to symmetric dark matter, in order to deplete the dark antiparticles and account for the ...
Baldes, Iason, Petraki, Kalliopi
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Sommerfeld enhancement of resonant dark matter annihilation
The dark matter annihilation cross section can be amplified by orders of magnitude if the annihilation occurs into a narrow resonance, or if the dark-matter particles experience a long-range force before annihilation (Sommerfeld effect).
M. Beneke, S. Lederer, K. Urban
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Lower Limits on the Strengths of Gamma Ray Lines from WIMP Dark Matter Annihilation
We study the spectra of gamma ray signals that arise from dark matter annihilation in the universe. We focus on the large class of theories where the photon spectrum includes both continuum spectrum of gamma rays that arise from annihilation into ...
Abazajian, Kevork N. +3 more
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On the annihilation of dislocation dipoles in metals
During plastic deformation, there is a wealth of dislocation reactions, in which dislocation dipoles may play an important role. In this review, first, the history of dislocation dipole annihilation is revisited.
Hao Wang
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On Generation, Motions, and Collisions of Dowsons
Dowsons are ±2π point singularities of the unitary complex order parameter eiφ characterizing the so-called dowser texture in a thin nematic layer with homeotropic boundary conditions.
Pawel Pieranski, Maria Helena Godinho
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We incorporate Milky Way dark matter halo profile uncertainties, as well as an accounting of diffuse gamma-ray emission uncertainties in dark matter annihilation models for the Galactic Center Extended gamma-ray excess (GCE) detected by the Fermi Gamma ...
Abazajian, Kevork N., Keeley, Ryan E.
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The Unification Of The Intellect And The Intelligibe; Criticize And Analyze Haeri Yazdi's Viewpoint; Based on Jostarhaie Falsafi (Philosophical Queries) [PDF]
The ‘argument of correlation’ is one of arguments by which Mulla-Sadra attempts to prove the unification of the intellect and the intelligible. Haeri Yazdi in some of his philosophical books has tried to explain the argument.
Mohammad Hadi Tavakoli
doaj
Citation: 'annihilation' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.A00366 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
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Spherical harmonics analysis of Fermi gamma-ray data and the Galactic dark matter halo
We argue that the decomposition of gamma-ray maps in spherical harmonics is a sensitive tool to study dark matter (DM) annihilation or decay in the main Galactic halo of the Milky Way.
Bovy, Jo +2 more
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FINITELY ANNIHILATED GROUPS [PDF]
AbstractIn 1976, Wiegold asked if every finitely generated perfect group has weight 1. We introduce a new property of groups,finitely annihilated, and show that this might be a possible approach to resolving Wiegold’s problem. For finitely generated groups, we show that in several classes (finite, solvable, free), being finitely annihilated is ...
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