Pseudo-Majoron as dark matter
نویسندگان
چکیده
منابع مشابه
Decaying majoron dark matter and neutrino masses
We review the recent proposal by Lattanzi & Valle of the majoron as a suitable warm dark matter candidate. The majoron is the Goldstone boson associated to the spontaneous breaking of ungauged lepton number, one of the mechanisms proposed to give rise to neutrino masses. The majoron can acquire a mass through quantum gravity effects, and can possibly account for the observed dark matter compone...
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An attractive way to generate neutrino masses as required to account for current neutrino oscillation data involves the spontaneous breaking of lepton number. The resulting majoron may pick up a mass due to gravity. If its mass lies in the kilovolt scale, the majoron can play the role of late-decaying Dark Matter (LDDM), decaying mainly to neutrinos. In general the majoron has also a sub-domina...
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Sofiane M. Boucenna, Stefano Morisi, Qaisar Shafi, and José W. F. Valle AHEP Group, Institut de Física Corpuscular – C.S.I.C./Universitat de València, Parc Cientific de Paterna. C/ Catedratico Jose Beltran, 2 E-46980 Paterna (València), Spain DESY, Platanenallee 6, D-15735 Zeuthen, Germany Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, Newark, Delaware 1...
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Pseudo-Dirac dark matter is a viable type of dark matter which originates from a new Dirac fermion whose two Weyl states get slightly split in mass by a small Majorana term. The decay of the heavier to the lighter state naturally occurs over a detectable length scale. Thus, whenever pseudo-Dirac dark matter is produced in a collider, it leaves a clear trace: a visible displaced vertex in associ...
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Supersymmetric extensions of the Standard Model which incorporate the axion solution to the strong CP problem necessarily contain also the axino, the fermionic partner of the axion. In contrast to the neutralino and the gravitino, the axino mass is generically not of the order of the supersymmetry breaking scale and can be much smaller. The axino is therefore an intriguing candidate for a stabl...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2010
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2010.05.012