Particle Currents on a CP Violating Higgs Background and the Spontaneous Baryogenesis Mechanism
D. Comelli, M. Pietroni, A. Riotto
Abstract
We compute the particle currents induced on a bubble wall background at finite temperature in a model with CP violation in the Higgs sector. Using a field theory approach we show that fermionic currents arise at one loop, so that a suppression factor O(ht ϕ/πT)2 with respect to previous computations is found. The contributions to the Higgs currents are also derived and their relevancy for the spontaneous baryogenesis mechanism is discussed.
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