Measurement of the tt Production Cross Section in pp Collisions at {radical}(s)=1.96 TeV

Journal Article · Fri Aug 25 04:00:00 EDT 2006 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.97.082004· OSTI ID:20860714

Abulencia, A; Budd, S; Chu, P H; Ciobanu, C I; Errede, D; Errede, S; Gerberich, H; Grundler, U; Junk, T R; Kraus, J; Liss, T M; Marino, C; Pitts, K; Rogers, E; Taffard, A; Veramendi, G; Zhang, X ^[1]; Acosta, D; Cruz, A; Field, R ^[2]

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1. University of Illinois, Urbana, Illinois 61801 (United States)
2. University of Florida, Gainesville, Florida 32611 (United States)

We present a measurement of the top quark pair production cross section in pp collisions at {radical}(s)=1.96 TeV using 318 pb{sup -1} of data collected with the Collider Detector at Fermilab. We select tt decays into the final states e{nu}+jets and {mu}{nu}+jets, in which at least one b quark from the t-quark decays is identified using a secondary vertex-finding algorithm. Assuming a top quark mass of 178 GeV/c{sup 2}, we measure a cross section of 8.7{+-}0.9(stat){sub -0.9}{sup +1.1}(syst) pb. We also report the first observation of tt with significance greater than 5{sigma} in the subsample in which both b quarks are identified, corresponding to a cross section of 10.1{sub -1.4}{sup +1.6}(stat){sub -1.3}{sup +2.0}(syst) pb.

• OSTI ID: 20860714
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 8 Vol. 97; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ALGORITHMS
B QUARKS
CROSS SECTIONS
FERMILAB COLLIDER DETECTOR
GEV RANGE 100-1000
MASS
PAIR PRODUCTION
PARTICLE DECAY
PROTON BEAMS
PROTON REACTIONS
PROTON-PROTON INTERACTIONS
T QUARKS
TEV RANGE 01-10