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010   $a3-319-63901-3
024 7 $a10.1007/978-3-319-63901-7
035   $a(CKB)3710000001631592
035   $a(MiAaPQ)EBC4935644
035   $a(DE-He213)978-3-319-63901-7
035   $a(PPN)203851552
035   $a(EXLCZ)993710000001631592
100   $a20170802d2017      u|             0
101 0 $aeng
135   $aurcnu||||||||
181   $2rdacontent
182   $2rdamedia
183   $2rdacarrier
200 10$aEffective Field Theories for Heavy Majorana Neutrinos in a Thermal Bath$b[electronic resource] /$fby Simone Biondini
205   $a1st ed. 2017.
210  1$aCham :$cSpringer International Publishing :$cImprint: Springer,$d2017.
215   $a1 online resource (221 pages)
225 1 $aSpringer Theses, Recognizing Outstanding Ph.D. Research,$x2190-5053
300   $a"Doctoral Thesis accepted by the Technical University of Munich, Germany."
311   $a3-319-63900-5 
320   $aIncludes bibliographical references at the end of each chapters and index.
327   $aBaryon Asymmetry in the Early Universe -- Baryogenesis via Leptogenesis -- E?ective Field Theories -- Thermal Field Theory in a Nutshell -- EFT Approach for Right-handed Neutrinos in a Thermal Bath -- CP Asymmetries at Finite Temperature: the Nearly Degenerate Case -- CP Asymmetries at Finite Temperature: the Hierarchical Case -- Flavoured CP Asymmetries.
330   $aThis thesis discusses the construction of an effective field theory (EFT) for non-relativistic Majorana fermions, shows how to use it to calculate observables in a thermal medium, and derives the effects of these thermal particles on the CP asymmetry.  The methods described in this thesis are the only ones to date that allow a systematic and effective description of the non-relativistic dynamics of a heavy Majorana fermion at finite temperature. The CP asymmetry is studied for hierarchical and nearly degenerate heavy-neutrino masses and the analysis includes the treatment of lepton-flavor effects.  Heavy Majorana neutrinos are involved in many scenarios of physics beyond the standard model and, in the leptogenesis framework, they are at the root of the baryon asymmetry in the Universe. Besides simplifying existing results, the EFT approach provides useful tools for addressing even more involved observables. Indeed, taken together, the approach and the material pres ented here represent an important step toward a systematic improvement of our knowledge of the CP asymmetry in heavy-neutrino decays at finite temperature.
410  0$aSpringer Theses, Recognizing Outstanding Ph.D. Research,$x2190-5053
606   $aElementary particles (Physics)
606   $aQuantum field theory
606   $aCosmology
606   $aString theory
606   $aElementary Particles, Quantum Field Theory$3https://scigraph.springernature.com/ontologies/product-market-codes/P23029
606   $aCosmology$3https://scigraph.springernature.com/ontologies/product-market-codes/P22049
606   $aQuantum Field Theories, String Theory$3https://scigraph.springernature.com/ontologies/product-market-codes/P19048
615  0$aElementary particles (Physics).
615  0$aQuantum field theory.
615  0$aCosmology.
615  0$aString theory.
615 14$aElementary Particles, Quantum Field Theory.
615 24$aCosmology.
615 24$aQuantum Field Theories, String Theory.
676   $a410.72
700   $aBiondini$b Simone$4aut$4http://id.loc.gov/vocabulary/relators/aut$0819574
906   $aBOOK
912   $a9910254601903321
996   $aEffective Field Theories for Heavy Majorana Neutrinos in a Thermal Bath$91826454
997   $aUNINA