TY - JOUR

T1 - Z6 symmetry, electroweak transition, and magnetic monopoles at high temperature

AU - Bakker, B. L.G.

AU - Veselov, A. I.

AU - Zubkov, M. A.

N1 - Funding Information:
We are grateful to F.V. Gubarev, M.N. Chernodub, E.M. Ilgenfritz, and D. Boer for useful discussions. A.I.V. and M.A.Z. kindly acknowledge the hospitality of the Department of Physics and Astronomy of the Vrije Universiteit, where part of this work was done. This work was partly supported by the Netherlands Organisation for Scientific Research, by RFBR grants 06-02-16309, 05-02-16306, and 04-02-16079, RFBR-DFG grant 06-02-04010, by Federal Program of the Russian Ministry of Industry, Science and Technology No. 40.052.1.1.1112, by Grant for leading scientific schools 843.2006.2.

PY - 2006/11/2

Y1 - 2006/11/2

N2 - We consider the lattice realization of the Standard Model with an additional Z6 symmetry. Numerical simulations were performed on the asymmetric lattice, which corresponds to the finite temperature theory. Our choice of parameters corresponds to large Higgs masses (MH > 90 GeV). The phase diagram was investigated and has been found to be different from that of the usual lattice realization of the Standard Model. It has been found, that the confinement-deconfinement phase transition lines for the SU (2) and SU (3) fields coincide. The transition line between Higgs and symmetric deconfinement parts of the phase diagram and the confinement-deconfinement transition line meet in a triple point. The transition between Higgs and symmetric parts of the phase diagram corresponds to the finite temperature electroweak transition/crossover. We see for the first time evidence that Nambu monopoles are condensed at T > Tc while at T < Tc their condensate vanishes.

AB - We consider the lattice realization of the Standard Model with an additional Z6 symmetry. Numerical simulations were performed on the asymmetric lattice, which corresponds to the finite temperature theory. Our choice of parameters corresponds to large Higgs masses (MH > 90 GeV). The phase diagram was investigated and has been found to be different from that of the usual lattice realization of the Standard Model. It has been found, that the confinement-deconfinement phase transition lines for the SU (2) and SU (3) fields coincide. The transition line between Higgs and symmetric deconfinement parts of the phase diagram and the confinement-deconfinement transition line meet in a triple point. The transition between Higgs and symmetric parts of the phase diagram corresponds to the finite temperature electroweak transition/crossover. We see for the first time evidence that Nambu monopoles are condensed at T > Tc while at T < Tc their condensate vanishes.

UR - http://www.scopus.com/inward/record.url?scp=33749639509&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2006.09.006

DO - 10.1016/j.physletb.2006.09.006

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:33749639509

SN - 0370-2693

VL - 642

SP - 147

EP - 152

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-2

ER -