Measurement of the pp{yields}tt production cross section and the top quark mass at {radical}(s)=1.96 TeV in the all-hadronic decay mode

Journal Article · Mon Oct 01 04:00:00 EDT 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.76.072009· OSTI ID:21032310

Aaltonen, T; Maki, T; Mehtala, P; Orava, R; Osterberg, K; Saarikko, H; Remortel, N van ^[1]; Abulencia, A; Budd, S; Ciobanu, C I; Errede, D; Errede, S; Gerberich, H; Grundler, U; Junk, T R; Kraus, J; Marino, C P; Pitts, K; Rogers, E; Taffard, A ^[2]

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1. Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki (Finland)
2. University of Illinois, Urbana, Illinois 61801 (United States)

We report the measurements of the tt production cross section and of the top quark mass using 1.02 fb{sup -1} of pp data collected with the CDF II detector at the Fermilab Tevatron. We select events with six or more jets on which a number of kinematical requirements are imposed by means of a neural network algorithm. At least one of these jets must be identified as initiated by a b-quark candidate by the reconstruction of a secondary vertex. The cross section is measured to be {sigma}{sub tt}=8.3{+-}1.0(stat){sub -1.5}{sup +2.0}(syst){+-}0.5(lumi) pb, which is consistent with the standard model prediction. The top quark mass of 174.0{+-}2.2(stat){+-}4.8(syst) GeV/c{sup 2} is derived from a likelihood fit incorporating reconstructed mass distributions representative of signal and background.

• OSTI ID: 21032310
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 76; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B QUARKS
CROSS SECTIONS
FERMILAB COLLIDER DETECTOR
FERMILAB TEVATRON
GEV RANGE
HADRONIC PARTICLE DECAY
JET MODEL
MASS DISTRIBUTION
NEURAL NETWORKS
PARTICLE IDENTIFICATION
PARTICLE KINEMATICS
PROTON-PROTON INTERACTIONS
REST MASS
STANDARD MODEL
T QUARKS
TEV RANGE