Notari, AlessioGarí Galíndez, Jon2019-10-022019-10-022019-06https://hdl.handle.net/2445/141523Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2019, Tutor: Alessio NotariNatural inflation is one of the most interesting models of inflation, it is generally studied for 1 light quark and is a model that fits with the experimental observations of the CMB within 2 sigma error. We will analyse the behaviour of a model of natural inflation with 2 light quarks and compare with observations. We will find that this model starts to be acceptable within 2 sigma when 𝑚𝑢𝑚𝑑⁄>4, otherwise the results are worse than the natural inflation with only 1 light quark4 p.application/pdfengcc-by-nc-nd (c) Garí, 2019http://creativecommons.org/licenses/by-nc-nd/3.0/es/CosmologiaQuarksTreballs de fi de grauCosmologyQuarksBachelor's thesesinfo:eu-repo/semantics/bachelorThesisinfo:eu-repo/semantics/openAccess