A. Donini et al., PHENOMENOLOGICAL ASPECTS OF A FERMIOPHOBIC SU(2)XSU(2)XU(1) EXTENSIONOF THE STANDARD MODEL, Nuclear physics. B, 507(1-2), 1997, pp. 51-90
We consider an extension of the standard electroweak theory with gauge
group SU(2)(L) x SU(2)(R) x U(1)((Y) over bar), where the gauge boson
s of the extra SU(2)R factor do not couple to ordinary fermions. We sh
ow that precision electroweak data and flavour physics provide quite s
tringent indirect constraints on its parameter space, but still allow
for relatively light non-standard gauge and Higgs bosons. We then cons
ider the model phenomenology at high-energy colliders, and observe tha
t in the gauge boson sector present bounds and possible future signals
are dominated by Z' production. In summary, indirect constraints on t
he charged gauge boson sector are so tight that observable new effects
must be connected either with the neutral gauge boson sector or with
the extended Higgs sector of the model. (C) 1997 Elsevier Science B.V.