Kouvaris, Chris - Search Results - CERN Document Server

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Defrosting and Blast Freezing Dark Matter / Flores, Marcos M. (UCLA) ; Kouvaris, Chris (Natl. Tech. U., Athens) ; Kusenko, Alexander (UCLA ; Tokyo U., IPMU ; CERN)
We show that the present-day dark matter abundance can be produced through a novel mechanism that involves a very rapid thermal freeze-out caused by inhomogeneous heating and successive fast cooling of small fireballs in the early Universe. The fireballs can be produced from energy deposited in small scale structure growth induced by Yukawa interactions in certain particle species. [...]
arXiv:2306.04056; IPMU23-0015.- 2023-11-15 - 6 p. - Published in : Phys. Rev. D
- Published in : Phys. Rev. D Fulltext: PDF;

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Probing Bosonic Stars with Atomic Clocks / Kouvaris, Chris (Southern Denmark U., CP3-Origins ; CERN) ; Papantonopoulos, Eleftherios (Natl. Tech. U., Athens) ; Street, Lauren (Cincinnati U.) ; Wijewardhana, L.C.R. (Cincinnati U.)
Dark Matter could potentially manifest itself in the form of asymmetric dark stars. In this paper we entertain the possibility of probing such asymmetric bosonic dark matter stars by the use of atomic clocks. [...]
arXiv:1910.00567; CERN-TH-2019-145; CP3-Origins-2019-20 DNRF90.- 2020-09-15 - 15 p. - Published in : Phys. Rev. D 102 (2020) 063014 Article from SCOAP3: PDF; Fulltext: PDF;

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The Photon Spectrum of Asymmetric Dark Stars / Maselli, Andrea (INFN, Rome ; Rome U.) ; Kouvaris, Chris (Southern Denmark U., CP3-Origins ; CERN) ; Kokkotas, Kostas D. (Tubingen U., IAAT)
Asymmetric Dark Stars, i.e., compact objects formed from the collapse of asymmetric dark matter could potentially produce a detectable photon flux if dark matter particles self-interact via dark photons that kinetically mix with ordinary photons. The morphology of the emitted spectrum is significantly different and therefore distinguishable from a typical black-body one. [...]
arXiv:1905.05769; CERN-TH-2019-070; CP3-Origins-2019-20; DNRF90.- 2020-12-05 - 17 p. - Published in : Int. J. Mod. Phys. D 30 (2021) 2150003 Fulltext: PDF;

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Direct Detection of Strongly Interacting Sub-GeV Dark Matter via Electron Recoils / Emken, Timon (Southern Denmark U., CP3-Origins ; Chalmers U. Tech.) ; Essig, Rouven (YITP, Stony Brook) ; Kouvaris, Chris (Southern Denmark U., CP3-Origins ; CERN) ; Sholapurkar, Mukul (YITP, Stony Brook)
We consider direct-detection searches for sub-GeV dark matter via electron scatterings in the presence of large interactions between dark and ordinary matter. Scatterings both on electrons and nuclei in the Earth's crust, atmosphere, and shielding material attenuate the expected local dark matter flux at a terrestrial detector, so that such experiments lose sensitivity to dark matter above some critical cross section. [...]
arXiv:1905.06348; CERN-TH-2019-071; CP3-Origins-2019-18 DNRF90; YITP-SB-19-14.- 2019-09-30 - 40 p. - Published in : JCAP 1909 (2019) 070 Fulltext: PDF; External link: GitHub

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US Cosmic Visions: New Ideas in Dark Matter 2017: Community Report / Battaglieri, Marco (INFN, Genoa) ; Belloni, Alberto (Maryland U.) ; Chou, Aaron (Fermilab) ; Cushman, Priscilla (Minnesota U.) ; Echenard, Bertrand (Caltech) ; Essig, Rouven (SUNY, Stony Brook) ; Estrada, Juan (Fermilab) ; Feng, Jonathan L. (UC, Irvine) ; Flaugher, Brenna (Fermilab) ; Fox, Patrick J. (Fermilab) et al.
This white paper summarizes the workshop "U.S. [...]
arXiv:1707.04591 ; FERMILAB-CONF-17-282-AE-PPD-T. - 2017 - 113.
Fermilab Library Server (fulltext available) - Symmetry Magazine article - Full text - Fulltext

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Strong Interactive Massive Particles from a Strong Coupled Theory / Khlopov, Maxim Yu. (COSMION, Moscow ; APC, Paris) ; Kouvaris, Chris (CERN ; Odense U. ; Bohr Inst.)
Minimal walking technicolor models can provide a nontrivial solution for cosmological dark matter, if the lightest technibaryon is doubly charged. Technibaryon asymmetry generated in the early Universe is related to baryon asymmetry and it is possible to create excess of techniparticles with charge (-2). [...]
arXiv:0710.2189.- 2008 - 41 p. - Published in : Phys. Rev. D 77 (2008) 065002 APS Published version, local copy: PDF; Fulltext: PDF; External link: Fulltext

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WIMP Annihilation and Cooling of Neutron Stars / Kouvaris, Chris (CERN ; Univ. Southern Denmark, Odense, Denmark ; Niels Bohr Inst., Copenhagen, Denmark)
We study the effect of WIMP annihilation on the temperature of a neutron star. We shall argue that the released energy due to WIMP annihilation inside the neutron stars, might affect the temperature of stars older than 10 million years, flattening out the temperature at $\sim 10^4$ K for a typical neutron star..
arXiv:0708.2362; CERN-PH-TH-2007-145.- 2008 - 20 p. - Published in : Phys. Rev. D 77 (2008) 023006 APS Published version, local copy: PDF; External link: Fulltext

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Dark Majorana from the Minimal Walking Technicolor / Kouvaris, Chris (Bohr Inst. ; Odense U. ; CERN) /ATHENA Collaboration
We investigate the possibility of a dark matter candidate emerging from a minimal walking technicolor theory. In this case techniquarks as well as technigluons transform under the adjoint representation of SU(2) of technicolor. [...]
hep-ph/0703266; CERN-PH-TH-2007-105.- 2007 - 21 p. - Published in : Phys. Rev. D 76 (2007) 015011 APS Published version, local copy: PDF; Fulltext: PDF; External link: Preprint

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See also: similar author names
9	Kouvaris, C
1	Kouvaris, C.
48	kouvaris, chris

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