Sphalerogenesis

We propose a mechanism called sphalerogenesis to explain the baryon asymmetry of the universe (BAU). The BAU is explained by a CP-violating decay of the electroweak sphaleron. We introduce a dimension-six operator constructed from weak gauge fields: $Q_{\tilde{W}}\sim {\mathrm{\Lambda }}^{-2}{\epsilon }_{ijk}{\tilde{W}}_{\mu \nu }^i{W}^{j\nu \rho }{W}_{\rho }^{k\mu }$. We find that the BAU can be explained if $\mathrm{\Lambda }\simeq 38\mathrm{T}\mathrm{e}\mathrm{V}$. This scenario can be tested by electron electric dipole moment measurements in the near future.