 
Summary: Volume 101B, number 1,2 PHYSICSLETTERS 30 April1981
ARE THE WEAK INTERACTIONS STRONG ?
L.F. ABBOTT 1 and E. FARHI
CERN, Geneva, Switzerland
Received 13 January 1981
Weconsider a strongcoupling,confining versionof the standard SU(2)L × U(1) electroweak model Wefind that at low
energies(< 100 GeV)the particles and interactions givenby this model are indistinguishablefrom those of the usual weak
coupling, spontaneously broken theory. However,at high energies(> 100 GeV)the confining model exhibits bound state
quark and lepton structure, and intermediate vector bosons heavierthan those of the standard model
The low energy weak interactions are well described
by the standard SU(2)L × U(1) model [1] of Weinberg
and Salam. In this model, the mass scale of the weak
interactions is determined by the vacuum expectation
value of a scalar field. This vacuum expectation value
also cuts off the infrared growth of the SU(2)L coupling
constant resulting in a weakcoupling theory.
In this paper, we consider a very different approach
to the standard SU(2)L × U(1) lagrangian. We assume
that the SU(2)L coupling constant becomes large at a
mass A which sets the scale for the weak interactions
