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Cosmology meets functional QCD: First-order cosmic QCD transition induced by large lepton asymmetries

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arxiv 2106.11991 v2 pith:D5ODXUZX submitted 2021-06-22 hep-ph astro-ph.COhep-th

Fei Gao , Isabel M. Oldengott This is my paper
classification hep-phastro-ph.COhep-th
keywords asymmetriescosmicleptonfirst-orderflavourtransitionfunctionallarge
verification ladder T0 review T1 audit T2 compute T3 formal
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The lepton flavour 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 flavour 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 flavour asymmetries for which a first-order transition occurs for a number of different benchmark scenarios.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. The equation of state and surface tension of QCD in the first order phase transition region

    hep-ph 2025-07 conditional novelty 5.0 of 10

    A parametrized order-parameter model yields the equation of state, spinodal boundaries, and surface tension for the first-order QCD phase transition.

  2. The effect of charm quark on the QCD chiral phase diagram

    hep-ph 2026-03 conditional novelty 4.0 of 10

    Adding a dynamical charm quark moves the predicted QCD critical endpoint from (102.9 MeV, 618.8 MeV) to (104.3 MeV, 600.1 MeV).

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