Cosmic QCD Epoch at Nonvanishing Lepton Asymmetry

Wygas M, Oldengott IM, Bödeker D, Schwarz D (2018)
PHYSICAL REVIEW LETTERS 121(20): 201302.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
Abstract / Bemerkung
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 to interpolate between an ideal quark gas and an ideal hadron resonance gas. The lepton asymmetry affects the evolution of all chemical potentials. The standard cosmic trajectory is obtained assuming tiny lepton and baryon asymmetries. For larger lepton asymmetry, the charge chemical potential exceeds the baryon chemical potential before pion annihilation.
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Zeitschriftentitel
PHYSICAL REVIEW LETTERS
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121
Ausgabe
20
Art.-Nr.
201302
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Wygas M, Oldengott IM, Bödeker D, Schwarz D. Cosmic QCD Epoch at Nonvanishing Lepton Asymmetry. PHYSICAL REVIEW LETTERS. 2018;121(20): 201302.
Wygas, M., Oldengott, I. M., Bödeker, D., & Schwarz, D. (2018). Cosmic QCD Epoch at Nonvanishing Lepton Asymmetry. PHYSICAL REVIEW LETTERS, 121(20), 201302. doi:10.1103/PhysRevLett.121.201302
Wygas, M., Oldengott, I. M., Bödeker, D., and Schwarz, D. (2018). Cosmic QCD Epoch at Nonvanishing Lepton Asymmetry. PHYSICAL REVIEW LETTERS 121:201302.
Wygas, M., et al., 2018. Cosmic QCD Epoch at Nonvanishing Lepton Asymmetry. PHYSICAL REVIEW LETTERS, 121(20): 201302.
M. Wygas, et al., “Cosmic QCD Epoch at Nonvanishing Lepton Asymmetry”, PHYSICAL REVIEW LETTERS, vol. 121, 2018, : 201302.
Wygas, M., Oldengott, I.M., Bödeker, D., Schwarz, D.: Cosmic QCD Epoch at Nonvanishing Lepton Asymmetry. PHYSICAL REVIEW LETTERS. 121, : 201302 (2018).
Wygas, Mandy, Oldengott, Isabel M., Bödeker, Dietrich, and Schwarz, Dominik. “Cosmic QCD Epoch at Nonvanishing Lepton Asymmetry”. PHYSICAL REVIEW LETTERS 121.20 (2018): 201302.

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