Download or read book Precise Study of the $Z/\gamma^*$ Boson Transverse Momentum Distribution in $p\bar{p}$ Collisions Using a Novel Technique written by and published by . This book was released on 2010 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using 7.3 fb−1 of p{bar p} collisions collected by the D0 detector at the Fermilab Tevatron, we measure the distribution of the variable [phi]*{sub {eta}}, which probes the same physical effects as the Z/[gamma]* boson transverse momentum, but is less susceptible to the effects of experimental resolution and efficiency. A QCD prediction is found to describe the general features of the [phi]*{sub {eta}} distribution, but is unable to describe its detailed shape or dependence on boson rapidity. A prediction that includes a broadening of transverse momentum for small values of the parton momentum fraction is strongly disfavored.