# EPS HEP 2013 Stockholm

17-24 July 2013
KTH and Stockholm University Campus
Europe/Stockholm timezone

## Measurements of jet production in association with W and Z bosons with the ATLAS detector

19 Jul 2013, 11:55
10m
E1 (KTH Campus)

### E1

#### KTH Campus

Talk presentation QCD

### Speaker

Alessandro Tricoli (CERN)

### Description

The production of jets in association with a W or Z boson in proton­proton collisions at 7 TeV represent an important process to study QCD in a multi­scale environment. The cross sections, differential in several kinematics variables, have been measured up to high jet multiplicities and compared to new higher­order QCD calculations. The ratio of (Z + a single jet)/(W + a single jet) can provide a very precise test of QCD and has also been measured. Overall, the cross sections demonstrate the need for the inclusion of higher­multiplicity matrix elements in the calculations, even in cases where a parton shower simulation is present.

### Primary author

Uta Klein (University of Liverpool (GB))

 Slides