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001     330435
005     20250721135027.0
024 7 _ |a 10.1016/j.aop.2004.02.003
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024 7 _ |a 0003-4916
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024 7 _ |a 1096-035X
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037 _ _ |a PUBDB-2017-06927
041 _ _ |a English
082 _ _ |a 530
088 1 _ |a hep-ph/0401240; DESY-03-100; UAB-FT-551; CERN-TH-2003-199
088 _ _ |a hep-ph/0401240
|2 arXiv
088 _ _ |a DESY-03-100
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088 _ _ |a UAB-FT-551
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088 _ _ |a CERN-TH-2003-199
|2 CERN
100 1 _ |a Buchmuller, Wilfried
|0 P:(DE-H253)PIP1003059
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|u desy
245 _ _ |a Leptogenesis for pedestrians
260 _ _ |a Amsterdam [u.a.]
|c 2005
|b Elsevier
336 7 _ |a article
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336 7 _ |a ARTICLE
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336 7 _ |a JOURNAL_ARTICLE
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336 7 _ |a Journal Article
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500 _ _ |a Forschung Hochenergiephysik; Theorie
520 _ _ |a During the process of thermal leptogenesis temperature decreases by about one order of magnitude while the baryon asymmetry is generated. We present an analytical description of this process so that the dependence on the neutrino mass parameters becomes transparent. In the case of maximal CP asymmetry all decay and scattering rates in the plasma are determined by the mass M_1 of the decaying heavy Majorana neutrino, the effective light neutrino mass tilde{m}_1 and the absolute mass scale bar{m} of the light neutrinos. In the mass range suggested by neutrino oscillations, m_{sol} \simeq 8*10^{-3} eV \lesssim \tilde{m}_1 \lesssim m_{atm} \simeq 5*10^{-2} eV, leptogenesis is dominated just by decays and inverse decays. The effect of all other scattering processes lies within the theoretical uncertainty of present calculations. The final baryon asymmetry is dominantly produced at a temperature T_B which can be about one order of magnitude below the heavy neutrino mass M_1. We also derive an analytical expression for the upper bound on the light neutrino masses implied by successful leptogenesis.
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650 _ 7 |a lepton: production
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650 _ 7 |a temperature
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650 _ 7 |a baryon: asymmetry
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650 _ 7 |a neutrino: mass
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650 _ 7 |a CP: violation
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650 _ 7 |a neutrino: heavy
|2 INSPIRE
650 _ 7 |a neutrino: Majorana
|2 INSPIRE
650 _ 7 |a neutrino: decay modes
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650 _ 7 |a neutrino: oscillation
|2 INSPIRE
650 _ 7 |a neutrino: production
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650 _ 7 |a Boltzmann equation
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650 _ 7 |a numerical calculations
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700 1 _ |a Di Bari, P.
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700 1 _ |a Plumacher, M.
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773 _ _ |a 10.1016/j.aop.2004.02.003
|g Vol. 315, no. 2, p. 305 - 351
|0 PERI:(DE-600)1461336-0
|n 2
|p 305 - 351
|t Annals of physics
|v 315
|y 2005
|x 0003-4916
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910 1 _ |a Deutsches Elektronen-Synchrotron
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