Title
Measurement of the **b** jet cross section in events with a Z boson in <tex>$p\overline{p}$</tex> collisions at <tex>$\sqrt{s}$</tex>=1.96 TeV Measurement of the **b** jet cross section in events with a Z boson in <tex>$p\overline{p}$</tex> collisions at <tex>$\sqrt{s}$</tex>=1.96 TeV
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Lancaster, Pa ,
Subject
Physics
Source (journal)
Physical review : D : particles and fields. - Lancaster, Pa, 1970 - 2003
Volume/pages
74(2006) :3 , p. 032008,1-032008,12
ISSN
0556-2821
ISI
000240239300019
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
A measurement of the inclusive bottom jet cross section is presented for events containing a Z boson in pp&#773; collisions at √s=1.96  TeV using the Collider Detector at Fermilab. Z bosons are identified in their electron and muon decay modes, and b jets with ET>20  GeV and |η|<1.5 are identified by reconstructing a secondary decay vertex. The measurement is based on an integrated luminosity of about 330  pb-1. A cross section times branching ratio of σ(Z+b   jets)×B(Z→&#8467;+&#8467;-)=0.93±0.36  pb is found, where B(Z→&#8467;+&#8467;-) is the branching ratio of the Z boson or γ* into a single flavor dilepton pair (e or μ) in the mass range between 66 and 116  GeV/c2. The ratio of b jets to the total number of jets of any flavor in the Z sample, within the same kinematic range as the b jets, is 2.36±0.92%. Here, the uncertainties are the quadratic sum of statistical and systematic uncertainties. Predictions made with next-to-leading order QCD agree, within experimental and theoretical uncertainties, with these measurements.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/06f1cd/e4759c8c.pdf
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