Cosmic QCD Epoch at Nonvanishing Lepton Asymmetry.
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DOI: 10.1103/physrevlett.121.201302
Abstract: We investigate how a lepton asymmetry impacts the cosmic trajectory in the QCD phase diagram. We study the evolution of chemical potentials during the QCD epoch of the early Universe using susceptibilities from lattice QCD… read more here.
Keywords: cosmic qcd; lepton asymmetry; epoch nonvanishing; qcd epoch ... See more keywords
Indications for a Nonzero Lepton Asymmetry from Extremely Metal-Poor Galaxies.
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DOI: 10.1103/physrevlett.130.131001
Abstract: The recent measurement of helium-4 from the near-infrared spectroscopy of extremely metal-poor galaxies by the Subaru Survey may point to a new puzzle in the early Universe. We exploit this new helium measurement together with… read more here.
Keywords: poor galaxies; nonzero lepton; metal poor; extremely metal ... See more keywords