Effective Field Theories for Heavy Majorana Neutrinos in a Thermal Bath

  • Simone┬áBiondini

Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xiii
  2. Simone Biondini
    Pages 1-6
  3. Simone Biondini
    Pages 7-32
  4. Simone Biondini
    Pages 33-53
  5. Simone Biondini
    Pages 55-68
  6. Simone Biondini
    Pages 69-93
  7. Simone Biondini
    Pages 161-170
  8. Simone Biondini
    Pages 171-175
  9. Back Matter
    Pages 177-215

About this book


This 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.


Majorana Neutrinos Leptogenesis Effective Field Theories Thermal Field Theory Cutting Rules One-loop Calculations Majorana Fermions Baryon Asymmetry Heavy Neutron Decays

Authors and affiliations

  • Simone┬áBiondini
    • 1
  1. 1.Albert Einstein Center, Institute for Theoretical PhysicsUniversity of BernBernSwitzerland

Bibliographic information

  • DOI
  • Copyright Information Springer International Publishing AG 2017
  • Publisher Name Springer, Cham
  • eBook Packages Physics and Astronomy
  • Print ISBN 978-3-319-63900-0
  • Online ISBN 978-3-319-63901-7
  • Series Print ISSN 2190-5053
  • Series Online ISSN 2190-5061
  • Buy this book on publisher's site