We report on a study of jet shapes in inclusive jet production in
pp-bar collisions at s**(1/2) = 1.96 TeV using the upgraded Collider Detector
at Fermilab in Run II (CDF II) based on an integrated luminosity of 170
pb-1. Measurements are carried out on jets with rapidity 0.1 < |Yjet| <
0.7 and transverse momentum 37 GeV/c < Pjet_T < 380 GeV/c. The jets have
been corrected to the hadron level. The measured jet shapes are compared to
leading-order QCD parton-shower Monte Carlo predictions as implemented in
the PYTHIA and HERWIG programs. PYTHIA, tuned to describe the underlying
event as measured in CDF Run I, provides a better description of the
measured jet shapes than does PYTHIA or HERWIG with their default
parameters.
Return to top of page.
Go to Physics Results
Updated: Wednesday, 2005 June 22 10:56:43 CDT automatically from input from Carol Picciolo