The Dark Matter Annihilation Cross Section
Limits to dark matter annihilation cross-section from a combined analysis of MAGIC and Fermi-LAT observations of dwarf satellite galaxies
... The Fermi -LAT data set used in this work corresponds to 6 years of observations of 15 dSphs. We analyzed the data with the latest (Pass 8) event-level analysis [34], using the Fermi Science Tools version 10-01-01 and ...
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Limits to dark matter annihilation cross-section from a combined analysis of MAGIC and Fermi-LAT observations of dwarf satellite galaxies
... Figures 2 and 3 show our main results: the 95% confidence level limits to hσv i for DM particles with masses between 10 GeV and 100 TeV annihilating into SM pairs b¯ b, W + W − , τ + τ − and µ + µ − , as obtained from ...
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Cross-correlation of weak lensing and gamma rays: implications for the nature of dark matter
... lensing cross-correlations and the first application of spectral binning to cross-correlations between gamma rays and weak ...a cross-correlation signal, we derive constraints on weakly interacting ...
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The Impact of Annihilation of Magnetic Monopole on Inflation, Dark Energy and Dark Matter
... the annihilation of abundant magnetic monopoles is just required in driving the inflation, so that the three long-term problems are automatically ...failed annihilation of monopoles is responsible for the ...
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Galactic substructure and dark-matter annihilation in the Milky Way halo
... of dark-matter candi- ...WIMP annihilation in the Sun, are now beginning to dig into the favored WIMP parameter ...WIMP annihilation in the Galactic halo. These annihilation products ...
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Gamma-ray signatures of annihilation to charged leptons in dark matter substructure
... the annihilation cross sec- tion in Sommerfeld models makes calculating the cosmic signal in this scenario more complicated than in the stan- dard picture [ 96 ...the cross section on halo ...
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Antiproton-nucleus annihilation cross section at low energy
... antinucleon-nuclei annihilation cross sections at low energies were sys- tematically measured at CERN in the 80’s and 90’s with the LEAR facility and later with the Antiproton ...the annihilation ...
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Searching for Dark Matter annihilation in recently discovered Milky Way satellites with Fermi-LAT
... the Dark Energy Survey (DES; DES Collaboration 2005 ...In Section 5 we perform a combined analysis of the population of con firmed and candidate dSphs and find no globally signi ficant excess associated with ...
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Presenting limits of simplified dark matter models from collider searches in. 0 m DM planes and self-annihilation cross-sections.
... b GRAPPA, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, Nether- lands E-mail: [email protected], [email protected] Abstract. This write-up is an internal working document summarising an approach on ...
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Experimental technique for antiproton-nucleus annihilation cross section measurements at low energy
... Avalanche photodiodes by Hamamatsu (S8664-1010) with a ∼ 5 µm depletion layer were used to reduce background events caused by direct hits of charged particles at the depletion layers. 3 Measurement technique The ...
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Asset Pricing in the Dark: The Cross Section of OTC Stocks
... 3: Cross-Sectional Summary Statistics for Key Variables We summarize the distributions of monthly returns and the main firm characteristics for the OTC and comparable listed samples in Panels A and B, ...average ...
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Dark Matter without Matter
... In this section we want to show that the static P-model can be extended to an expanding one. We address the problem without reference to conventional cos- mology. We avoid using an expanding metric and the scale ...
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Background in the search for dark photon in e+e− annihilation
... positron-on-target annihilation experiments is to exploit also data driven methods for background esti- mation, which may include acquiring data with electron beam, keeping the conditions ...multiphoton ...
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Non-minimal dark matter search in dark matter colliders
... unstable dark sector state χ 2 in fixed target experiments such as LBNF/DUNE [18], SHiP [22] and T2HKK ...differential cross section gets larger for smaller momentum transfer so that the e-scattering ...
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Universe, Dark Energy and Dark Matter
... its cross size of 300 Mpc, starting from which the space distribu- tion of galaxies is approximately uniform, is called a uniformity cell in the ...of matter is not uniform at ...
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Limits on dark matter annihilation signals from the Fermi LAT 4-year measurement of the isotropic gamma-ray background
... DM annihilation signal from a halo depends on the third power of the concentration (see ...the matter density fluctuations, σ(M ...non-linear matter power spectrum, which is determined using only a ...
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On Dark Matter Identification
... with dark masses are assumed to annihilate each other at some finite time after the EW phase transi- tion, implying that λ = g 2 = ( q K − q K ) ( 2 q K − q K + 2 q K ) 2 → 1 ...the annihilation of the ...
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Dark Matter 2014
... the cross section (for a given ρ 0 ...WIMP-nucleon cross sections σ n ≈ 10 − 45 cm 2 for m χ ∼ 50 GeV/ c 2 ...such cross sections, the optimal WIMP detector should therefore have a large total ...
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Hadronic Dark Matter
... rather large, M 0 ≈ M Q ≈ 10 TeV. It is known, that Sommerfeld enhancement (SE) effect can significantly modify the value of annihilation cross-section [25]. Usually, this effect is caused by the ...
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The Dark Matter Electron
... “Light will not cross Dark Matter because Dark Matter density is higher than Planck density.” Adrian Ferent Hawking Radiation: black holes will generate virtual particles right at the ...
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