We have measured the W-boson mass M W using data corresponding to 2.2fb -1 of integrated luminosity collected in pp̄ collisions at √s=1.96TeV with the CDF II detector at the Fermilab Tevatron collider. Samples consisting of 470126 W→eν candidates and 624708 W→μν candidates yield the measurement M W=80387±12 stat.±15 syst.=80387±19MeV/c2. This is the most precise measurement of the W-boson mass to date and significantly exceeds the precision of all previous measurements combined. © 2012 American Physical Society.
Precise measurement of the W-boson mass with the CDF II detector
Amerio S.;Annovi A.;Bedeschi F.;Canelli F.;Cho K.;Ciocci M. A.;Corbo M.;Cordelli M.;Crescioli F.;Dell'orso M.;Di Canto A.;Donati S.;Giannetti P.;Glenzinski D.;Iori M.;Kondo K.;Lami S.;Leo S.;Liu H.;Moggi N.;Morello M. J.;Muller T.;Pauletta G.;Punzi G.;Ristori L.;Rodriguez T.;Ruffini F.;Rusu V.;Scuri F.;Sun S.;Tokar S.;Totaro P.;Vogel M.;Zhou C.;
2012-01-01
Abstract
We have measured the W-boson mass M W using data corresponding to 2.2fb -1 of integrated luminosity collected in pp̄ collisions at √s=1.96TeV with the CDF II detector at the Fermilab Tevatron collider. Samples consisting of 470126 W→eν candidates and 624708 W→μν candidates yield the measurement M W=80387±12 stat.±15 syst.=80387±19MeV/c2. This is the most precise measurement of the W-boson mass to date and significantly exceeds the precision of all previous measurements combined. © 2012 American Physical Society.File in questo prodotto:
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