Measurement of Z Boson Transverse Momentum In Proton-Antiproton Collisions At sqrt(s)=1.96 TeV

This dissertation describes a measurement of the shape of the boson transverse momentum distribution in p\bar{p}\rightarrow Z/γ^*\rightarrow e⁺e^- +X events at a center-of-mass energy of 1.96 TeV. The measurement is made for events with electron-positron mass between 70 < M_ee < 110 GeV/c² and uses 976 pb^-1 of data collected at the Fermilab Tevatron collider with the D\O\ detector. The shape is measured both for the inclusive sample and for the subset of events containing a boson with large rapidity. The large-rapidity distribution shows better agreement with theory when the calculation is done using traditional Collins-Soper-Sterman resummation than when using a recent resummed form factor with modifications in the small-x region.

Department dc:contributor.department

Physics

Year dc:date.issued

2007

Author dc:creator

• Wang, Lei

Advisor dc:contributor.advisor

• Eno, Sarah

Language dc:language.iso

en_US

Handle dc:identifier.uri

http://hdl.handle.net/1903/6717

OAI identifier oai:identifier

oai:drum.lib.umd.edu:1903/6717