Publication
Title
Measurement of the **b** jet cross section in events with a Z boson in $p\overline{p}$ collisions at $\sqrt{s}$=1.96 TeV
Author
Institution/Organisation
CDF Collaboration
Abstract
 A measurement of the inclusive bottom jet cross section is presented for events containing a Z boson in pp̅ 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→ℓ+ℓ-)=0.93±0.36  pb is found, where B(Z→ℓ+ℓ-) 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.
Language
English
Source (journal)
Physical review : D : particles and fields. - Lancaster, Pa, 1970 - 2003
Publication
Lancaster, Pa : 2006
ISSN
0556-2821
Volume/pages
74:3(2006), p. 032008,1-032008,12
ISI
000240239300019
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
 Faculty/Department [E?say:metaLocaldata.cgzprojectinf] Publication type Subject Affiliation Publications with a UAntwerp address