# Physics at LHC 2012

4-9 June 2012
Life Sciences Centre, UBC
<strong><font color="#cc0000">Abstract submission has closed</font></strong>

## Associated production of W and Z bosons with jets from light and heavy quarks

5 Jun 2012, 14:50
20m
LSC-2 (Life Sciences Centre, UBC)

### LSC-2

#### Life Sciences Centre, UBC

University of British Columbia Vancouver, BC Canada
Parallel Talk Standard Model & Beyond

### Speaker

Roberto Castello (Universite Catholique de Louvain (BE))

### Description

The associated production of jets and vector bosons allows for stringent tests of perturbative QCD calculations and is sensitive to the possible presence of new physics beyond the Standard Model. The mechanism of production of heavy quarks in association with a W or a Z, in particular, is only partially understood. A measurement of jet production rates in association with W and Z bosons in proton-proton collisions at a 7 TeV center-of-mass energy is presented, using data collected with the CMS detector. The measured jet multiplicity distributions corrected for efficiency and unfolded for detector effects are compared with theoretical predictions. Measurements of the Z+b-tagged jet(s) cross sections and angular correlations are presented. Finally, results for the W+c production rate are also shown.

### <strong>Collaboration Name</strong><br /><font color="#000099">Please enter the name of<br />the collaboration or group<br />using the acronym, as in:<br /><font color="#ff0000">ABC Collaboration</font>

CMS collaboration