|
Title
|
|
|
|
Measurement of the production cross section in collisions at =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]
|
|
|
DOI
|
|
|
|
10.1103/PHYSREVD.81.092002
|
|
|
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)
|
|
|
|
|
|