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Muon g-2 Anomaly and Extra Interaction of Composite Higgs in a Dynamically Broken Electroweak Theory

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(Oct 30, 2001)

Abstract

In electroweak theory without elementary Higgs scalars existence of a solution, which breaks initial symmetry is shown. A composite scalar doublet serves as a substitute for usual Higgs. The mass of the surviving Higgs scalar is predicted to be \$M\_H = 117 7 GeV\$. The resulting theory contains realistic \$W, Z, t\$ masses and composite massive Higgs. Parameters used are \$g\$, \$þeta\_W\$, cut-off \$Łambda 3500 GeV\$ and triple gauge constant \$łambda\_V -0.034\$. Stable nontrivial solution for extra interactions of the Higgs particle gives contribution to muon \$g-2\$: \$\Delta a = 49.4\cdot 10^-10\$ that agrees with the recently reported anomaly. The extra interaction leads to a number of experimental consequences for B.R. of Higgs decay and its production cross-sections in \$e^+e^- \$ and \$p p\$ collisions including recommendation for looking for Higgs via decay \$H 2 \gamma\$.

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