Heavy Majorana neutrinos at a future muon collider

Musumeci, Emanuela (2020) Heavy Majorana neutrinos at a future muon collider. [Laurea magistrale], Università di Bologna, Corso di Studio in Fisica [LM-DM270], Documento full-text non disponibile
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In this thesis work we have explored the production of heavy Majorana neutrinos at a future muon collider. At variance with the Standard Model which predicts neutrinos to be massless, the observation of neutrino oscillations implies that they are massive particles. This has opened a new era in particle physics, where the origin of neutrino masses and their nature, Dirac or Majorana, are being explored. The Majorana nature of neutrinos can be experimentally probed only via lepton-number violating processes involving charged leptons. We have focused our attention on the production of a heavy neutrino at multi-TeV hadron and lepton colliders (specifically at a muon collider). We have considered the vector boson fusion channel W+W+ → l+l′+, mediated by Majorana neutrinos and verified the unitarity properties of this process in a Type I See-Saw. We have then studied same-sign lepton pair production, at both hadron and lepton machines in simplified Heavy Neutrino models, showing that the latter have the potential to either discover or constrain the existence of heavy Majorana neutrinos.

Tipologia del documento
Tesi di laurea (Laurea magistrale)
Autore della tesi
Musumeci, Emanuela
Relatore della tesi
Correlatore della tesi
Corso di studio
Curriculum A: Teorico generale
Ordinamento Cds
Parole chiave
Data di discussione della Tesi
29 Maggio 2020

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