MUON g-2 ANOMALY AND EXTRA INTERACTION OF COMPOSITE HIGGS IN DYNAMICALLY BROKEN ElECTROWEAK THEORY

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
$M_H = 117 \pm 7\,GeV$. The resulting theory
contains realistic $W,\,Z,\,t$ masses and composite
massive Higgs. Parameters used
are $g$, $\theta_W$, cut-off $\Lambda\,\simeq\,3500\,GeV$
and triple gauge constant $\lambda_V\,\simeq\,-0.034$.
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-section in $e^+e^-$ and
$\bar p p$ collisions including recommendation for looking
for Higgs via decay $H \to 2\,\gamma$.

Номер документа: 2001-35/675

Авторы: B. A. Arbuzov