Baryon asymmetry, dark matter, and quantum chromodynamics
نویسندگان
چکیده
منابع مشابه
Baryon Asymmetry, Dark Matter and Quantum Chromodynamics
We propose a new scenario to explain the observed cosmological asymmetry between matter and antimatter, based on nonperturbative physics at the QCD scale. Our scenario relies on a mechanism of separation of matter and antimatter which would be in two different phases: conventional hadronic phase and novel, color superconducting phase. We argue that chunks of quarks or antiquarks in condensed co...
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We study the implications of a large baryogenesis temperature, TB = O(10 10 GeV), on the mass spectrum of superparticles in supersymmetric extensions of the standard model. Models with a neutralino as lightest superparticle (LSP) are excluded. A consistent picture is obtained with the gravitino as LSP, followed by a higgsino-like neutralino (NSP). Gravitinos with masses from 10 to 100 GeV may b...
متن کاملTheories relating baryon asymmetry and dark matter
*Correspondence: Stefano Morisi, Institut für Theoretische Physik und Astrophysik, Universität Würzburg, Campus Hubland North, Emil-Hilb-Weg 22, 97074 Würzburg, Germany e-mail: [email protected] The nature of dark matter and the origin of the baryon asymmetry are two of the deepest mysteries of modern particle physics. In the absence of hints regarding a possible solution to these myster...
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We present a new mechanism for transferring a pre-existing lepton or baryon asymmetry to a dark matter asymmetry that relies on mass mixing which is dynamically induced in the early universe. Such mixing can succeed with only generic scales and operators and can give rise to distinctive relationships between the asymmetries in the two sectors. The mixing eliminates the need for the type of addi...
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By comparing a collisionless cosmological N-body simulation (DM) to a smoothed particle hydrodynamics simulation (SPH) with the same initial conditions, we investigate the correspondence between the dark matter subhalos produced by collisionless dynamics and the galaxies produced by dissipative gas dynamics in a dark matter background. When galaxies in the SPH simulation fall into larger groups...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2005
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.71.023519