Can large fermion chemical potentials suppress the electroweak phase transition ?

Carlos Quimbay; John Morales; Rafael Hurtado

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arXiv · hep-ph/0011123

Can large fermion chemical potentials suppress the electroweak phase transition ?

Carlos Quimbay·John Morales·Rafael Hurtado

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Abstract

We calculate the critical temperature $(T_c$) of the electroweak phase transition in the minimal standard model considering simultaneously temperature ($T$) and fermion chemical potential ($μ_f$) effects over the effective potential. The calculation is performed in the one-loop approximation to the effective potential at non-zero temperature using the real time formalism of the thermal field theory. We show that it exists a fermion chemical potential critical value ($μ_f^c$) for which the Higgs boson condensate vanishes at T=0. If $T$ and $μ_f$ effects are considered simultaneously, it is shown that for $μ_f \geq μ_f^c$ then $T_c^2 \leq 0$, implying that the electroweak phase transition might not take place.

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Carlos Quimbay, John Morales, Rafael Hurtado. 2000-11-09. Can large fermion chemical potentials suppress the electroweak phase transition ?. https://arxiv.org/abs/hep-ph/0011123

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