A bridge between CP violation at low energies and leptogenesis
By G. Branco, T. Morozumi, B. Nobre, M. N. Rebelo. 2001
144 citations recorded by the source corpus.
We discuss the possibility of relating the size and sign of the observed baryon asymmetry of the universe to CP violation observable at low energies, in a framework where the observed baryon asymmetry is produced by leptogenesis through the out of the equilibrium decay of heavy Majorana neutrinos. We identify the CP violating phases entering in leptogenesis as well as those relevant for CP violation at low energies in the minimal seesaw model. We show that although in general there is no relation between these two sets of phases, there are specific frameworks in which such a connection may be established and we give a specific grand unification inspired example where such a connection does exist. We construct weak-basis invariants related to CP violation responsible for leptogenesis, as well as those relevant for CP violation at low energies.
Subfields: Nuclear and High Energy Physics, Statistical and Nonlinear Physics
View Paper: https://www.semanticscholar.org/paper/e653033c93a8393716358b477407ab7feb6ac62f
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In Nuclear and High Energy Physics
Citations in the corpus
- Running neutrino masses, mixings and CP phases: Analytical results and phenomenological consequences (2003, background): “e most important term in this context 6Clearly, the phases relevant for leptogenesis are those of the ‘right-handed’ sector and therefore in general not directly related to the phases considered here [44,45]. However, as the left-handed sector with its – in principle – observable phases is related t”
- Leptogenesis (2008, unknown): “With three singlet neutrinos Ni, thermal leptogenesis can work with no CP violation in U and, conversely, leptogenesis can fail in spite of non-vanishing phases in U [161].”