We have measured the W-boson mass MW using data corresponding to 2.2 fb-1 of integrated luminosity collected in pp̅ collisions at √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 MW=80 387±12stat.±15syst.=80 387±19 MeV/c2. This is the most precise measurement of the W-boson mass to date and significantly exceeds the precision of all previous measurements combined.
Precise Measurement of the W-Boson Mass with the CDF II Detector
Cauz D.;Santi L.;
2012-01-01
Abstract
We have measured the W-boson mass MW using data corresponding to 2.2 fb-1 of integrated luminosity collected in pp̅ collisions at √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 MW=80 387±12stat.±15syst.=80 387±19 MeV/c2. This is the most precise measurement of the W-boson mass to date and significantly exceeds the precision of all previous measurements combined.File in questo prodotto:
File | Dimensione | Formato | |
---|---|---|---|
W-mass-12.pdf
non disponibili
Tipologia:
Altro materiale allegato
Licenza:
Non pubblico
Dimensione
281.34 kB
Formato
Adobe PDF
|
281.34 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.