---
res:
bibo_abstract:
- "The lepton asymmetry of the universe is just weakly constraint and might\r\nbe
orders of magnitude larger than the baryon asymmetry. In this thesis, we\r\ninvestigate
how a lepton asymmetry influences the cosmic trajectory through\r\nthe phase diagram
of Quantum Chromodynamics (QCD). Therefore, we develop\r\na technique to determine
the temperature evolution of chemical potentials\r\nduring the QCD epoch of the
early universe at arbitrary lepton flavor\r\nasymmetries. We will rely on an ideal
quark gas approximation at high temperatures,\r\nT > 150 MeV, and a hadron resonance
gas model at low temperatures,\r\nT < 250 MeV. Higher-order perturbative corrections
are (partially)\r\nincluded in the ideal quark gas approximation. To interpolate
between these\r\napproximations, we will for the first time use lattice QCD susceptibilities\r\nto
properly account for strong interaction effects close to the QCD transition\r\ntemperature
TQCD. We therefore use a Taylor series ansatz of the QCD\r\npressure up to second
order in the chemical potentials. With this technique\r\nwe investigate the impact
of equally and unequally distributed lepton flavor\r\nasymmetries on the cosmic
trajectory. We conclude with an estimate on the\r\nreliability of our technique
via using a Taylor series of the QCD pressure.@eng"
bibo_authorlist:
- foaf_Person:
foaf_givenName: Mandy
foaf_name: Wygas, Mandy
foaf_surname: Wygas
foaf_workInfoHomepage: http://www.librecat.org/personId=51192147
orcid: 0000-0001-6446-0880
orcid_put_code_url: https://api.orcid.org/v2.0/0000-0001-6446-0880/work/55666983
dct_date: 2019^xs_gYear
dct_language: eng
dct_publisher: Universität Bielefeld@
dct_title: Large Lepton Asymmetry and the Cosmic QCD Transition@
...