@article{10902/1964, year = {2010}, month = {8}, url = {http://hdl.handle.net/10902/1964}, abstract = {We study the underlying event in proton-antiproton collisions by examining the behavior of charged particles produced in association with a large transverse momentum jet (∼2.2  fb-1) or with a Drell-Yan lepton pair (∼2.7  fb-1) in the Z-boson mass region [70