Measurement of the tt? production cross section in pp? collisions at s=1.96 TeV using lepton plus jets events with semileptonic B decays to muons
Journal
Physical Review D - Particles, Fields, Gravitation and Cosmology
Journal Volume
72
Journal Issue
3
Pages
1月20日
Date Issued
2005
Author(s)
Acosta, D. et al. (The CDF Collaboration)
Abstract
We present a measurement of the tt̄ production cross section using 194 pb-1 of CDF II data using events with a high transverse momentum electron or muon, three or more jets, and missing transverse energy. The measurement assumes 100% t→Wb branching fraction. Events consistent with tt̄ decay are found by identifying jets containing heavy-flavor semileptonic decays to muons. The dominant backgrounds are evaluated directly from the data. Based on 20 candidate events and an expected background of 9.5±1.1 events, we measure a production cross section of 5.3±3.3-1.0+1.3 pb, in agreement with the standard model. © 2005 The American Physical Society.
SDGs
Type
journal article