Measurement of the WW production cross section with dilepton final states in p-pbar collisions at sqrt(s)=1.96 TeV and limits on anomalous trilinear gauge couplings

TL;DR

This paper reports the most precise measurement of the WW production cross section at 1.96 TeV in proton-antiproton collisions, using dilepton decay channels, and sets limits on anomalous gauge couplings based on data from the D0 detector.

Contribution

It provides the most accurate WW cross section measurement at Tevatron energies and establishes new limits on anomalous trilinear gauge couplings.

Findings

Measured WW cross section: 11.5 +/- 2.1 pb

Set 95% C.L. limits on gauge couplings

Analyzed 1 fb^(-1) of data from D0 detector

Abstract

We provide the most precise measurement of the WW production cross section in p-pbar collisions to date at a center of mass energy of 1.96 TeV, and set limits on the associated trilinear gauge couplings. The WW->lvl'v (l,l'=e,mu) decay channels are analyzed in 1 fb^(-1) of data collected by the D0 detector at the Fermilab Tevatron Collider. The measured cross section is sigma(p-pbar -> WW) = 11.5 +/- 2.1 (stat + syst) +/- 0.7 (lumi) pb. One- and two-dimensional 95% C.L. limits on trilinear gauge couplings are provided.