20-27 July 2011
Alpes Congrès - Alpexpo
Europe/Paris timezone

Z+Jets Results from CDF

22 Jul 2011, 17:30
Bayard (Alpes Congrès - Alpexpo)


Alpes Congrès - Alpexpo

Parallel session talk QCD QCD


Lorenzo Ortolan


Inclusive Z-boson plus jets cross sections are measured in a final state where the Z-boson has decayed in two muons or electrons. Results are based on $\sim 6$ fb$ ^{-1}$ of data in $\rm p\bar{p}$ collisions at $\rm \sqrt{s}$ = 1.96 TeV collected with the CDF detector in Run II. Differential cross sections are presented as a function of several variables, among which jet transverse momentum, jets multiplicity and di-jet invariant mass. The measurements are compared to next-to-leading order perturbative QCD predictions. Additionally, we present preliminary results on bottom quark jet production in association with a Z boson. The measurements are carried out in events for which the Z boson decays into muons or electrons, and the results are compared to theoretical predictions. The analysis is performed in the context of studies on irreducible backgrounds in searches for new physics.

Primary author

Dr Christina MESROPIAN (The Rockefeller University)

Presentation Materials