25-29 June 2018
UTC timezone

Evolution of Chemical Potentials in the Early Universe

Not scheduled



Mandy M. Wygas (Bielefeld University)


The QCD phase diagram is commonly drawn in the baryon chemical potential versus temperature plane ($\mu_B-T$). As until a few microseconds after the big bang the Universe was filled with strong-interaction matter, often also a sketch of the trajectory of the early Universe is displayed in the QCD phase diagram. However, below the electroweak phase transition and above neutrino oscillations, the cosmic trajectory lies in a (5+1)-dimensional space of chemical potentials for baryon number $B$, electric charge $Q$, three lepton flavours $L_{\alpha}$ and temperature $T$. We are going to present some new results on the evolution of these chemical potentials throughout a large temperature range in the early Universe.

Primary author

Mandy M. Wygas (Bielefeld University)


Dietrich Boedeker (Bielefeld University) Dominik J. Schwarz (Bielefeld University) Isabel M. Oldengott (Bielefeld University)

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