TY - JOUR
T1 - Cosmology Meets Functional QCD
T2 - First-Order Cosmic QCD Transition Induced by Large Lepton Asymmetries
AU - Gao, Fei
AU - Oldengott, Isabel M.
N1 - Publisher Copyright:
© 2022 authors. Published by the American Physical Society.
PY - 2022/4/1
Y1 - 2022/4/1
N2 - The lepton flavor asymmetries of the Universe are observationally almost unconstrained before the onset of neutrino oscillations. We calculate the cosmic trajectory during the cosmic QCD epoch in the presence of large lepton flavor asymmetries. By including QCD thermodynamic quantities derived from functional QCD methods in our calculation, our work reveals for the first time the possibility of a first-order cosmic QCD transition. We specify the required values of the lepton flavor asymmetries for which a first-order transition occurs for a number of different benchmark scenarios.
AB - The lepton flavor asymmetries of the Universe are observationally almost unconstrained before the onset of neutrino oscillations. We calculate the cosmic trajectory during the cosmic QCD epoch in the presence of large lepton flavor asymmetries. By including QCD thermodynamic quantities derived from functional QCD methods in our calculation, our work reveals for the first time the possibility of a first-order cosmic QCD transition. We specify the required values of the lepton flavor asymmetries for which a first-order transition occurs for a number of different benchmark scenarios.
UR - http://www.scopus.com/inward/record.url?scp=85127890341&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.128.131301
DO - 10.1103/PhysRevLett.128.131301
M3 - Article
C2 - 35426716
AN - SCOPUS:85127890341
SN - 0031-9007
VL - 128
JO - Physical Review Letters
JF - Physical Review Letters
IS - 13
M1 - 131301
ER -