منابع مشابه
3.55 keV hint for decaying axionlike particle dark matter
Joerg Jaeckel, Javier Redondo, and Andreas Ringwald Institut für theoretische Physik, Universität Heidelberg, Philosophenweg 16, 69120 Heidelberg, Germany Arnold Sommerfeld Center, Ludwig Maximilians Universität, 80333 München, Germany Max Planck Institut für Physik, 80805 München, Germany Deutsches Elektronen Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany (Received 11 March 2014; pu...
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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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We consider models of light super-weakly interacting cold dark matter, with O(10) keV mass, focusing on bosonic candidates such as pseudoscalars and vectors. We analyze the cosmological abundance, the γ-background created by particle decays, the impact on stellar processes due to cooling, and the direct detection capabilities in order to identify classes of models that pass all the constraints....
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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...
متن کاملX-ray photons from late-decaying majoron dark matter
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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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1993
ISSN: 0370-2693
DOI: 10.1016/0370-2693(93)90140-d