Publication
Title
Measurement of the $t\overline{t}$ production cross section in $p\overline{p}$ collisions at $\sqrt{s}$=1.96 TeV using soft electron **b**-tagging
Author
Institution/Organisation
CDF Collaboration
Abstract
 We present a measurement of the top-quark pair-production cross section in pp̅ collisions at √s=1.96  TeV using a data sample corresponding to 1.7  fb-1 of integrated luminosity collected with the Collider Detector at Fermilab. We reconstruct tt̅ events in the lepton+jets channel, consisting of eν+jets and μν+jets final states. The dominant background is the production of W bosons in association with multiple jets. To suppress this background, we identify electrons from the semileptonic decay of heavy-flavor jets (soft electron tags). From a sample of 2196 candidate events, we obtain 120 tagged events with a background expectation of 51±3 events, corresponding to a cross section of σtt̅ =7.8±2.4(stat)±1.6(syst)±0.5(lumi)  pb. We assume a top-quark mass of 175  GeV/c2. This is the first measurement of the tt̅ cross section with soft electron tags in run II of the Tevatron.
Language
English
Source (journal)
Physical review : D : particles, fields, gravitation, and cosmology / American Physical Society. - Ridge, N.Y., 2004 - 2015
Physical review : D : particles and fields. - Lancaster, Pa, 1970 - 2003
Publication
Ridge, N.Y. : American Physical Society , 2010
ISSN
1550-7998 [print]
1550-2368 [online]
Volume/pages
81 :9 (2010) , p. 092002,1-092002,18
Article Reference
092002
ISI
000278145100006
Medium
E-only publicatie
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
 Faculty/Department Research group Publication type Subject Affiliation Publications with a UAntwerp address