Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 3, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP03(2011)098
Keywords
Supersymmetry Phenomenology
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Funding
- Korea Neutrino Research Center through National Research Foundation of Korea [2009-0083526]
- Ministry of Education, Science & Technology (MoST), Republic of Korea [PG012502] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2009-0093239] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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A Dirac fermion carrying an integral weak isospin and the vanishing hyper-charge is considered as a promising dark matter candidate (called the minimal dark matter) for its mass of order 100 GeV. While the symmetric population of the dark matter annihilates away due to a rapid gauge interaction, its asymmetric abundance is supposed to be produced together with the visible matter asymmetry through leptogenesis by the decay of a right-handed neutrino superfield in the supersymmetric type I seesaw mechanism. The efficiencies for generating the dark matter and lepton asymmetries are calculated by solving a set of approximate Boltzmann equations. A spectacular feature of this scenario is the existence of a long-lived singly-or multiply-charged scalar and a shorter-lived singly-charged fermion whose tracks can be readily looked for at the LHC.
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