Numerical investigation of lattice Weinberg - Salam model

Details Numerical investigation of lattice Weinberg - Salam model Numerical investigation of lattice Weinberg - Salam model

2011-09-19

arxiv.org/abs/1109.4077v1

Physics

High Energy Physics

High Energy Physics - Lattice

15th Lomonosov Conference Proceedings

Scientific paper

Lattice Weinberg - Salam model without fermions for the value of the Weinberg angle $\theta_W \sim 30^o$, and bare fine structure constant around $\alpha \sim 1/150$ is investigated numerically. We consider the value of the scalar self coupling corresponding to bare Higgs mass around 150 GeV. We investigate phenomena existing in the vicinity of the phase transition between the physical Higgs phase and the unphysical symmetric phase of the lattice model. This is the region of the phase diagram, where the continuum physics is to be approached. We find the indications that at the energies above 1 TeV nonperturbative phenomena become important in the Weinberg - Salam model.

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