Abstract
We present a measurement of the W boson mass using data collected by the DØ experiment at the Fermilab Tevatron during 1994–1995. We identify W bosons by their decays to final states where the electron is detected in a forward calorimeter. We extract the W boson mass by fitting the transverse mass and transverse electron and neutrino momentum spectra from a sample of 11 089 decay candidates. We use a sample of 1687 dielectron events, mostly due to decays, to constrain our model of the detector response. Using the forward calorimeter data, we measure Combining the forward calorimeter measurements with our previously published central calorimeter results, we obtain
- Received 23 August 1999
DOI:https://doi.org/10.1103/PhysRevD.62.092006
©2000 American Physical Society