English

Higgs' mass around 115 GeV would testify for composite Higgs

High Energy Physics - Phenomenology 2007-05-23 v1

Abstract

Theory with SU(2)×U(1)SU(2)\times U(1) gauge invariant electroweak Lagrangian describing standard interaction of massless quark doublet without elementary scalar Higgs sector is considered. We show in the main order of 1/Nc1/N_c expansion, that there exists a solution, which breaks initial symmetry and is accompanied by an appearance of zero mass composite scalar doublet. The electroweak loop corrections shift its mass to a tachyon value and thus the scalar serves as a substitute for usual elementary Higgs. The tt-quark mass also arise. The problem of adjusting its observable mass leads to prediction of triple gauge constant λV0.034\lambda_V \simeq -0.034 without contradiction with experimental data. The mass of the surviving composite Higgs scalar is predicted to be MH=117±7GeVM_H = 117 \pm 7 GeV, that agrees with recent indications of MH115GeVM_H \simeq 115 GeV. The resulting theory contains realistic W,Z,tW, Z, t masses, composite massive Higgs and massless other particles. Parameters used are cut-off Λ3500GeV\Lambda \simeq 3500 GeV, weak gauge constant gg and mixing angle θW\theta_W.

Keywords

Cite

@article{arxiv.hep-ph/0102311,
  title  = {Higgs' mass around 115 GeV would testify for composite Higgs},
  author = {B. A. Arbuzov},
  journal= {arXiv preprint arXiv:hep-ph/0102311},
  year   = {2007}
}

Comments

16 pages, latex, 6 figures, 1 table