Sterile neutrinos in CAMB
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Helena Garcia
- Posts: 29
- Joined: October 05 2021
- Affiliation: UCI
Sterile neutrinos in CAMB
After reviewing CAMB documentation (https://cosmologist.info/notes/CAMB.pdf), I am still not sure if CAMB default settings allow to add a partially thermalized sterile neutrino (in addition to the 3 LCDM neutrinos). Does anyone know if this option is possible and what parameters I should sample to study a model that includes a partially thermalized sterile neutrino with free mass? Thanks!
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Antony Lewis
- Posts: 1980
- Joined: September 23 2004
- Affiliation: University of Sussex
- Contact:
Re: Sterile neutrinos in CAMB
You can use meffsterile and nnu when calling set_cosmology (following Planck paper definitions).
More generally you can set the degeneracies of each individual eigenstate by setting the corresponding part of the CAMBparams structure.
More generally you can set the degeneracies of each individual eigenstate by setting the corresponding part of the CAMBparams structure.