Quantum Boltzmann Equations and Leptogenesis
| dc.creator | De Simone, Andrea | |
| dc.creator | Riotto, Antonio | |
| dc.date | 2007-03-16 | |
| dc.date | 2007-10-02 | |
| dc.date.accessioned | 2026-07-07T11:02:52Z | |
| dc.date.available | 2026-07-07T11:02:52Z | |
| dc.description | The closed time-path formalism is a powerful Green's function formulation to describe non-equilibrium phenomena in field theory and it leads to a complete non-equilibrium quantum kinetic theory. We make use of this formalism to write down the set of quantum Boltzmann equations relevant for leptogenesis. They manifest memory effects and off-shell corrections. In particular, memory effects lead to a time-dependent CP asymmetry whose value at a given instant of time depends upon the previous history of the system. This result is particularly relevant when the asymmetry is generated by the decays of nearly mass-degenerate heavy states, as in resonant or soft leptogenesis. | |
| dc.description | 21 pages, 5 figures. IOP LaTeX class used. Minor corrections and references added. Matches the version published in JCAP | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0703175 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0703175 | |
| dc.identifier | JCAP0708:002,2007 | |
| dc.identifier | doi:10.1088/1475-7516/2007/08/002 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/188397 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Quantum Boltzmann Equations and Leptogenesis | |
| dc.type | text |