Speaker
Mr
Mark James Tibbetts
(Berkeley LBNL)
Description
The production of jets in association with a W or a Z boson is an
important process to study QCD in a multi≠scale environment in p≠p
collisions at the LHC. The cross sections, differential in several
kinematics variables, and their ratios (W+jets)/(Z+jets), have been
measured up to high jet multiplicities and high jet transverse momenta,
and compared to state≠of≠the≠art QCD calculations and Monte Carlo
simulations. In addition, the production of heavy flavour in association
with a W or Z boson represents is sensitive to the parton density functions
and to the modeling heavy≠quark flavour production mechanisms. Measurement
of the transverse momentum of the Z boson is sensitive to soft resummation
effects for small momentumtransfers and to multiple hard jet emissions for
large momentum transfers, probing QCD in a unique way. The data are used
to tune next≠to≠leading order plus parton shower Monte Carlo simulations.
An overview of these results is given.
Primary author
Mr
Mark James Tibbetts
(Berkeley LBNL)
