Cold electroweak baryogenesis in the two Higgs-doublet model

Tranberg A, Wu B (2012)
Journal of High Energy Physics 2012(7).

Journal Article | Published | English

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We perform the first investigation of cold electroweak baryogenesis in the two Higgs-doublet model (2HDM). The electroweak symmetry breaking transition is assumed to occur through a spinodal instability from a super-cooled initial state. We consider the creation of net Chern-Simons number, which through the axial anomaly is equivalent to a baryon asymmetry. CP violation is explicit in the scalar potential, but only in combination with P-violation is it possible for an asymmetry to be generated. This is introduced through the leading C- and P-breaking, but CP invariant, term expected to arise upon integrating out the fermions in the theory. We perform real-time lattice simulations of the transition, and find the coefficient of this term required for successful baryogenesis.
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Tranberg A, Wu B. Cold electroweak baryogenesis in the two Higgs-doublet model. Journal of High Energy Physics. 2012;2012(7).
Tranberg, A., & Wu, B. (2012). Cold electroweak baryogenesis in the two Higgs-doublet model. Journal of High Energy Physics, 2012(7).
Tranberg, A., and Wu, B. (2012). Cold electroweak baryogenesis in the two Higgs-doublet model. Journal of High Energy Physics 2012.
Tranberg, A., & Wu, B., 2012. Cold electroweak baryogenesis in the two Higgs-doublet model. Journal of High Energy Physics, 2012(7).
A. Tranberg and B. Wu, “Cold electroweak baryogenesis in the two Higgs-doublet model”, Journal of High Energy Physics, vol. 2012, 2012.
Tranberg, A., Wu, B.: Cold electroweak baryogenesis in the two Higgs-doublet model. Journal of High Energy Physics. 2012, (2012).
Tranberg, Anders, and Wu, Bin. “Cold electroweak baryogenesis in the two Higgs-doublet model”. Journal of High Energy Physics 2012.7 (2012).
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