First Measurement of the W-Boson Mass in Run II of the Tevatron
Abstract
We present a measurement of the W-boson mass using 200pb-1 of data collected in pp¯ collisions at s=1.96TeV by the CDF II detector at run II of the Fermilab Tevatron. With a sample of 63 964 W→eν candidates and 51 128 W→μν candidates, we measure MW=80413±34stat±34syst=80413±48MeV/c2. This is the most precise single measurement of the W-boson mass to date.
- Publication:
-
Physical Review Letters
- Pub Date:
- October 2007
- DOI:
- arXiv:
- arXiv:0707.0085
- Bibcode:
- 2007PhRvL..99o1801A
- Keywords:
-
- 14.70.Fm;
- 13.38.Be;
- 13.85.Qk;
- W bosons;
- Decays of W bosons;
- Inclusive production with identified leptons photons or other nonhadronic particles;
- High Energy Physics - Experiment
- E-Print:
- published version in PRL