Pregled bibliografske jedinice broj: 37355
On the lifetime of a cold dark matter particle and the cosmological diffuse photon background
On the lifetime of a cold dark matter particle and the cosmological diffuse photon background // Nuovo cimento della Societa Italiana di fisica B : general physics relativity astronomy and mathematical physics and methods, 115 (2000), 4; 445-458 (međunarodna recenzija, članak, znanstveni)
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Naslov
On the lifetime of a cold dark matter particle and the cosmological diffuse
photon background
Autori
Palle, Davor
Izvornik
Nuovo cimento della Societa Italiana di fisica B : general physics relativity astronomy and mathematical physics and methods (0369-3554) 115
(2000), 4;
445-458
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
cosmology; cold dark matter; cosmological diffuse electromagnetic radiation
Sažetak
We show that a Majorana heavy neutrino with a mass O(100TeV) is a good candidate particle for cold dark matter. It can
be responsible for the majority of the cosmological diffuse photon background owing to lifetime of the order of
O(10^(25)s), dominantly fixed by the radiative two-body decay. The lifetime is suppressed by two mechanisms: the
leptonic GIM cancellation and the see-saw weak coupling suppression. As a fermion cold dark matter particle, a heavy
neutrino favours the average mass density of the Universe constrained by the Einstein-Cartan cosmology.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- SCI-EXP, SSCI i/ili A&HCI
