Precision Top-Quark Mass Measurement in the Lepton+Jets Topology in pp Collisions at {radical}(s)=1.96 TeV

Journal Article · Fri Jan 20 04:00:00 EST 2006 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.96.022004· OSTI ID:20775037

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; Vickey, T; Zhang, X ^[1]; Acosta, D; Cruz, A ^[2]

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

We report two measurements of the top-quark mass M{sub top} using the CDF II detector at the Fermilab Tevatron in a 318 pb{sup -1} data sample of tt events in the lepton+jets final state. One method uses an event-based likelihood technique resulting in M{sub top}=173.2{sub -2.4}{sup +2.6}(stat){+-}3.2(syst) GeV/c{sup 2} or 173.2{sub -4.0}{sup +4.1} GeV/c{sup 2}. The second method reconstructs a top-quark mass in each event using the measured invariant mass of the hadronically decaying W boson to constrain the jet energy scale to obtain a value for M{sub top} of 173.5{sub -3.6}{sup +3.7}(stat){+-}1.3(syst) GeV/c{sup 2} or 173.5{sub -3.8}{sup +3.9} GeV/c{sup 2}. We take the latter, which is more precise, as our result.

• OSTI ID: 20775037
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 2 Vol. 96; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
FERMILAB COLLIDER DETECTOR
FERMILAB TEVATRON
INCLUSIVE INTERACTIONS
LEPTONS
MASS
PARTICLE DECAY
PROTON-PROTON INTERACTIONS
STANDARD MODEL
T QUARKS
TEV RANGE 01-10
W MINUS BOSONS
W PLUS BOSONS