Measurement of the top-quark mass using missing E{sub T}+jets events with secondary vertex b-tagging at CDF II

Journal Article · Fri Jun 01 00:00:00 EDT 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.75.111103· OSTI ID:20929531

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

We present a measurement of the top-quark mass in pp collisions at {radical}(s)=1.96 TeV which uses events with an inclusive signature of missing transverse energy and jets. The event selection is sensitive to tt{yields}W{sup +}bW{sup -}b{yields}l{nu}bqq{sup '}b independent of the lepton flavor and results in a large acceptance for W{yields}{tau}{nu} decays. All-hadronic tt decays and events with identified electrons or muons are vetoed to provide a statistically independent sample with respect to all previous measurements. The top-quark mass is inferred from the distribution of the scalar sum of all jet transverse energies and the missing transverse energy. Using 311 pb{sup -1} of integrated luminosity recorded by the Collider Detector at Fermilab, we measure a top-quark mass m{sub t}=172.3{sub -9.6}{sup +10.8}(stat){+-}10.8(syst) GeV/c{sup 2}. While the uncertainty on m{sub t} is larger than that of other measurements, the result is statistically uncorrelated with those of other methods and thus can help to reduce the overall m{sub t} uncertainty when combined with other existing measurements.

• OSTI ID: 20929531
• Journal Information: Physical Review. D, Particles Fields, Vol. 75, Issue 11; Other Information: DOI: 10.1103/PhysRevD.75.111103; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BEAM LUMINOSITY
ELECTRONS
FERMILAB COLLIDER DETECTOR
FLAVOR MODEL
HADRONS
MASS
MUONS
NEUTRINOS
PARTICLE DECAY
PROTON-PROTON INTERACTIONS
T QUARKS
TAU PARTICLES
TEV RANGE 01-10
TRANSVERSE ENERGY
W MINUS BOSONS
W PLUS BOSONS