W boson mass measurement at CDF

Measurement of the W Boson Mass at the LHC

We explore the ability of the Large Hadron Collider to measure the mass of the W boson. We believe that a precision better than ∼ 15 MeV could be attained, based on a year of operation at low luminosity (10 cm s). If this is true, this measurement will be the world’s best determination of the W mass. [email protected] [email protected] operated by the Universities Research Association, Inc., for...

Top Mass Measurement at Cdf

We report on recent measurements of the top quark mass using tt̄ candidate events selected in ≃ 320 pb of data from the ”Run II” operation period of the Tevatron pp̄ collider. More emphasis is given on the best single measurement to date (Mtop = 173.5 +3.9 −3.8 GeV/c ), provided by CDF using the ”lepton plus jets” channel, where one W decays to a lepton-neutrino pair and the other into quarks (to...

First Run Ii Measurement of the W Boson Mass with Cdf

Precise measurement of the W-boson mass with the CDF II detector.

We have measured the W-boson mass M(W) using data corresponding to 2.2  fb(-1) of integrated luminosity collected in pp collisions at sqrt[s] = 1.96  TeV with the CDF II detector at the Fermilab Tevatron collider. Samples consisting of 470,126 W → eν candidates and 624,708 W → μν candidates yield the measurement M(W) = 80,387 ± 12(stat.) ± 15(syst.) = 80,387 ± 19  MeV/c2. This is the most preci...

Measurement of the W boson mass.

We present a measurement of the W boson mass in W-->e(nu) decays using 1 fb-1 of data collected with the D0 detector during Run II of the Fermilab Tevatron collider. With a sample of 499830 W-->e(nu) candidate events, we measure M(W)=80.401+/-0.043 GeV. This is the most precise measurement from a single experiment.