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Measurement of the W boson mass with the D0 detector

Abstract : We give a detailed description of the measurement of the $W$ boson mass, $M_W$, performed on an integrated luminosity of 4.3 fb$^{-1}$, which is based on similar techniques as used for our previous measurement done on an independent data set of 1 fb$^{-1}$ of data. The data were collected using the D0 detector at the Fermilab Tevatron Collider. This data set yields $1.68\times 10^6$ $W\rightarrow e\nu$ candidate events. We measure the mass using the transverse mass, electron transverse momentum, and missing transverse energy distributions. The $M_W$ measurements using the transverse mass and the electron transverse momentum distributions are the most precise of these three and are combined to give $M_W$ = 80.367 $\pm$ 0.013 (stat) $\pm$ 0.022 (syst) GeV = 80.367 $\pm$ 0.026 GeV. When combined with our earlier measurement on 1 fb$^{-1}$ of data, we obtain $M_W$ = 80.375 $\pm$ 0.023 GeV.
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http://hal.in2p3.fr/in2p3-00879504
Contributor : Emmanuelle Vernay <>
Submitted on : Monday, November 4, 2013 - 10:10:44 AM
Last modification on : Wednesday, January 6, 2021 - 8:46:02 AM

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V.M. Abazov, G. Sajot, J. Stark, S. Greder, F. Miconi, et al.. Measurement of the W boson mass with the D0 detector. Physical Review D, American Physical Society, 2014, 89, pp.012005. ⟨10.1103/PhysRevD.89.012005⟩. ⟨in2p3-00879504⟩

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