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Effective Field Theories for Heavy Majorana Neutrinos in a Thermal Bath

Effective Field Theories for Heavy Majorana Neutrinos in a Thermal Bath

Hardcover

Series: Springer Theses

Astronomy & SpacePhysics

ISBN10: 3319639005
ISBN13: 9783319639000
Publisher: Springer Nature
Published: Aug 14 2017
Pages: 215
Weight: 1.11
Height: 0.56 Width: 6.14 Depth: 9.21
Language: English

In this thesis we discuss the construction of an effective field theory (EFT) for non-relativistic Majorana fermions, show how to use it to calculate observables in a thermal medium, and derive the effects of these thermal particles on the CP asymmetry.

The methods described in this thesis 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.

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