In this thesis we have analyzed the effects of neutrinos on the stochastic gravitational wave background of cosmological origin. We have used the Boltzmann equation to study the evolution of the graviton distribution function, determining the anisotropies of such a background. Onve we have found the analytical expressions for the angular power spector, we have examined the effects of neutrinos by changing their effettive number from zero to three.
The effect of neutrinos on the stochastic gravitational-wave background
Valbusa Dall'Armi, Lorenzo
2020/2021
Abstract
In this thesis we have analyzed the effects of neutrinos on the stochastic gravitational wave background of cosmological origin. We have used the Boltzmann equation to study the evolution of the graviton distribution function, determining the anisotropies of such a background. Onve we have found the analytical expressions for the angular power spector, we have examined the effects of neutrinos by changing their effettive number from zero to three.File in questo prodotto:
| File | Dimensione | Formato | |
|---|---|---|---|
|
Tesi_LM_Physics_Valbusa_Dall_Armi_Lorenzo.pdf
accesso aperto
Dimensione
1.46 MB
Formato
Adobe PDF
|
1.46 MB | Adobe PDF | Visualizza/Apri |
The text of this website © Università degli studi di Padova. Full Text are published under a non-exclusive license. Metadata are under a CC0 License
Utilizza questo identificativo per citare o creare un link a questo documento:
https://hdl.handle.net/20.500.12608/21289