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Title: Measurement of the Top Pair Production Cross Section in the Lepton + Jets Channel Using a Jet Flavor Discriminant

We present a new method to measure the top quark pair production cross section and the background rates with data corresponding to an integrated luminosity of 2.7 fb-1 from pp¯ collisions at √s = 1.96 TeV collected with the CDF II Detector. We select events with a single electron or muon candidate, missing transverse energy, and at least one b-tagged jet. We perform a simultaneous fit to a jet flavor discriminant across nine samples defined by the number of jets and b-tags. An advantage of this approach is that many systematic uncertainties are measured in situ and inversely scale with integrated luminosity. We measure a top cross section of σtt¯ = 7.64 ± 0.57 (stat + syst) ± 0.45 (luminosity) pb.
Authors:
 [1]
  1. et al.
Publication Date:
OSTI Identifier:
1010356
Report Number(s):
FERMILAB-PUB-11-148-E
Journal ID: ISSN 1550-7998 ; arXiv eprint number arXiv:1103.4821; TRN: US1101595
Grant/Contract Number:
AC02-07CH11359
Type:
Accepted Manuscript
Journal Name:
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Additional Journal Information:
Journal Volume: 84; Journal Issue: 3; Journal ID: ISSN 1550-7998 
Publisher:
American Physical Society (APS)
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Contributing Orgs:
CDF Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CROSS SECTIONS; ELECTRONS; FERMILAB COLLIDER DETECTOR; LEPTONS; LUMINOSITY; MUONS; PAIR PRODUCTION; T QUARKS; TRANSVERSE ENERGY Experiment-HEP