First Measurement of the W-Boson Mass in Run II of the Tevatron

Journal Article · Fri Oct 12 04:00:00 EDT 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.99.151801· OSTI ID:21024257

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; Liss, T M; Marino, C P; Pitts, K; Rogers, E ^[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 present a measurement of the W-boson mass using 200 pb{sup -1} of data collected in pp collisions at {radical}(s)=1.96 TeV by the CDF II detector at run II of the Fermilab Tevatron. With a sample of 63 964 W{yields}e{nu} candidates and 51 128 W{yields}{mu}{nu} candidates, we measure M{sub W}=80 413{+-}34{sub stat}{+-}34{sub syst}=80 413{+-}48 MeV/c{sup 2}. This is the most precise single measurement of the W-boson mass to date.

• OSTI ID: 21024257
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 15 Vol. 99; 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
MASS
PROTON-PROTON INTERACTIONS
TEV RANGE 01-10
W MINUS BOSONS
W PLUS BOSONS