Technihadron Production and Decay at LEP2

TL;DR

This paper explores the potential to detect low-scale technicolor particles, specifically technirho and techniomega, at LEP2 through their mixing with electroweak bosons, providing production rates and model implementation details.

Contribution

It introduces a simple technicolor model with light technihadrons, calculates production rates at LEP2, and implements the model into PYTHIA for collider simulations.

Findings

LEP2 experiments could be sensitive to technirho and techniomega states 10-20 GeV beyond the energy

Production rates depend on technipion mass, mixing angle, and technifermion charge

Model implementation enables detailed particle-level studies

Abstract

The simple "straw-man" model of low-scale technicolor contains light color--singlet technihadrons, which mix with the electroweak gauge bosons. We present lepton collider production rates at the parton level, and show that experiments at LEP2 may be sensitive to the presence of technirho and techniomega states with masses 10-20 GeV beyond the center-of-mass energy because of the mixing. The exact sensitivity depends on several parameters, such as the technipion mass, the technipion mixing angle, and the charge of the technifermions. In an appendix, we describe the implementation of the model into the event generator PYTHIA for particle-level studies at lepton and hadron colliders.