Single Intermediate Vector Boson Production in e+e- collisions at sqrt(s) = 183 and 189 GeV

TL;DR

This paper reports measurements of single intermediate vector boson production cross-sections in electron-positron collisions at energies around 183 and 189 GeV, confirming Standard Model predictions.

Contribution

First measurement of these cross-sections at these energies, providing experimental validation of Standard Model predictions in this energy regime.

Findings

Measured cross-sections agree with Standard Model

Data collected at 182.6 GeV and 188.6 GeV

Results support existing theoretical models

Abstract

The cross-sections for the production of single charged and neutral intermediate vector bosons were measured using integrated luminosities of 52 pb^{-1} and 154 pb^{-1} collected by the DELPHI experiment at centre-of-mass energies of 182.6 GeV and 188.6 GeV, respectively. The cross-sections for the reactions were determined in limited kinematic regions. The results found are in agreement with the Standard Model predictions for these channels.