First second of leptons

Schwarz D, Starkman GD, Stuke M (2012)
Journal of Physics. Conference Series 375: 032005.

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Konferenzbeitrag | Veröffentlicht | Englisch
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Abstract / Bemerkung
A poorly constrained parameter in the Standard Model of Cosmology is thelepton asymmetry l = \sum_f l_f=\sum_f(n_f+n_{\nu_f})/s. Each flavour asymmetryl_f with f=e, \mu, {\tau} is the sum of the net particle density of the chargedleptons n_f and their corresponding neutrinos, normalized with the entropydensity s. Constraints on l_f \leq O(0.1) from BBN and CMB allow for leptonflavour asymmetries orders of magnitudes larger then the baryon asymmetry b ~10^{-10}. In this article we show how such large lepton (flavour) asymmetriesinfluence the early universe, in particular the freeze out of WIMPs and thecosmic QCD transition.
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375
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032005
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12TH INTERNATIONAL CONFERENCE ON TOPICS IN ASTROPARTICLE AND UNDERGROUND PHYSICS (TAUP 2011)
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Schwarz D, Starkman GD, Stuke M. First second of leptons. Journal of Physics. Conference Series. 2012;375:032005.
Schwarz, D., Starkman, G. D., & Stuke, M. (2012). First second of leptons. Journal of Physics. Conference Series, 375, 032005. doi:10.1088/1742-6596/375/1/032005
Schwarz, D., Starkman, G. D., and Stuke, M. (2012). First second of leptons. Journal of Physics. Conference Series 375, 032005.
Schwarz, D., Starkman, G.D., & Stuke, M., 2012. First second of leptons. Journal of Physics. Conference Series, 375, p 032005.
D. Schwarz, G.D. Starkman, and M. Stuke, “First second of leptons”, Journal of Physics. Conference Series, vol. 375, 2012, pp. 032005.
Schwarz, D., Starkman, G.D., Stuke, M.: First second of leptons. Journal of Physics. Conference Series. 375, 032005 (2012).
Schwarz, Dominik, Starkman, Glenn D., and Stuke, Maik. “First second of leptons”. Journal of Physics. Conference Series 375 (2012): 032005.

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arXiv: 1111.5147

Inspire: 947020

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