Nonthermal production of baryon and dark matter
نویسندگان
چکیده
منابع مشابه
Nonthermal Supermassive Dark Matter
Daniel J. H. Chung, Edward W. Kolb, Antonio Riotto Department of Physics and Enrico Fermi Institute The University of Chicago, Chicago, Illinois 60637-1433 NASA/Fermilab Astrophysics Center Fermilab National Accelerator Laboratory, Batavia, Illinois 60510-0500 Department of Astronomy and Astrophysics and Enrico Fermi Institute The University of Chicago, Chicago, Illinois 60637-1433 Theory Divis...
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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...
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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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*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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ژورنال
عنوان ژورنال: Astroparticle Physics
سال: 2006
ISSN: 0927-6505
DOI: 10.1016/j.astropartphys.2005.10.003