STRUCTURELESS COMPOSITENESS AND THE LEP W+W- DATA

Abstract

We specify the electroweak scenario of structureless compositeness (SC) put forward previously to the case of identical masses m(W±)=m(Φ±) and m(Z)=m(Φ0). The resulting quantum-mechanical interference will exhibit a vector–scalar phase interlocking of exactly π. We calculate the total cross-section of e+e-→ W+W- in this scenario and compare with the SM. The experimental data is found not to rule out any of the four scenarios SM, κ an =0, SC at κ=1 and 0. Pronounced differences between these four cases show up for the σ tot contribution of the W L W L final state. The effects are illustrated in plots free of the trivial phase-space factor.