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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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.
Erscheinungsjahr
2018
Zeitschriftentitel
PHYSICAL REVIEW LETTERS
Band
121
Ausgabe
20
Art.-Nr.
201302
ISSN
0031-9007
eISSN
1079-7114
Finanzierungs-Informationen
Open-Access-Publikationskosten wurden durch die Universität Bielefeld im Rahmen von SCOAP$^3$ – Sponsoring Consortium for Open Access Publishing in Particle Physics gefördert.
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https://pub.uni-bielefeld.de/record/2932773
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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. https://doi.org/10.1103/PhysRevLett.121.201302
Wygas, Mandy, Oldengott, Isabel Mira, Bödeker, Dietrich, and Schwarz, Dominik. 2018. “Cosmic QCD Epoch at Nonvanishing Lepton Asymmetry”. PHYSICAL REVIEW LETTERS 121 (20): 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 Mira, Bödeker, Dietrich, and Schwarz, Dominik. “Cosmic QCD Epoch at Nonvanishing Lepton Asymmetry”. PHYSICAL REVIEW LETTERS 121.20 (2018): 201302.
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PMID: 30500250
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arXiv: 1807.10815
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