On Theoretical Uncertainties of the W Boson Mass Measurement at LEP2

Abstract

We discuss theoretical uncertainties of the measurement of the $W$ boson mass at LEP2 energies, reconstructed with the help of the tandem of the Monte Carlo event generators KoralW and YFSWW3. Exploiting numerical results obtained with these programs, and the existing knowledge in the literature, we estimate that the theoretical uncertainty of the $W$ mass due to electroweak corrections, as reconstructed at LEP2 with the help of these programs, is $\sim 5$MeV. Since we use certain idealized event selections and a simple $M_W$-fitting procedure, our numerical exercises can be (should be) repeated for the actual ``$M_W$ extraction methods'' of the LEP2 measurements, using KoralW and YFSWW3 or other Monte Carlo programs.

References in corpus (3)

• The Monte Carlo Program KoralW version 1.51 and The Concurrent Monte Carlo KoralW&YFSWW3 with All Background Graphs and First Order Corrections to W-Pair Production
• The Monte Carlo Event Generator YFSWW3 version 1.16 for W-Pair Production and Decay at LEP2/LC Energies
• Measurement of the Mass and Width of the W Boson in e+e- Collisions at sqrt(s) = 189 GeV

Cited by in corpus (14)

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• Measurement of the Mass and Width of the W Boson in e+e- Collisions at sqrt{s} = 161 - 209 GeV
• Measurement of the W boson mass and width in e+e- collisions at LEP
• Measurement of the Mass and the Width of the W Boson at LEP
• A Study of W+W-gamma Events at LEP
• QED challenges at FCC-ee precision measurements
• On Theoretical Uncertainties of the W Angular Distribution in W-Pair Production at LEP2 Energies
• QED Exponentiation for quasi-stable charged particles: the $e^{-}{e}^{+}\to W^{-}{W}^{+}$ process
• Electroweak corrections uncertainty on the W mass measurement at LEP
• Precision predictions for W-pair production at LEP2
• The Influence of the Experimental Methodology on the QED Theoretical Uncertainties on the Measurement of the W-Boson Mass at LEP
• Precision W-pair physics with the YFSWW3 and KoralW Monte Carlos