Determination of the mass of the $W$ boson

Kunszt, Z.; Stirling, W.James; Schwindling, J.; Katsanevas, S.; Riemann, T.; van Oldenborgh, G.J.; Banerjee, S.; Khoze, Valery A.; Todorova, S.; Juste, A.; Moller, Rasmus; Watson, M.F.; Campanelli, Mario; Weber, A.; Ballestrero, A.; Sassowsky, M.; Hartmann, C.; Pansart, J.P.; Perez, P.; Trabelsi, A.; Gaidot, A.; Ward, C.P.; Blondel, A.; Renton, P.B.; Ward, D.R.; Maina, E.; Shears, T.G.; Jegerlehner, F.; Valassi, A.; Sjostrand, T.; Grunewald, M.W.; Cavallari, F.; Chen, H.S.; Wilson, G.W.; Kjaer, N.J.; Watson, N.K.; Lonnblad, L.; Charlton, David G.; Martinez, M.; Gustafson, G.; Garrido, L.; van Dierendonck, D.; Gele, D.

Determination of the mass of the $W$ boson

Z. Kunszt, W.James Stirling, A. Ballestrero, S. Banerjee, A. Blondel, Mario Campanelli, F. Cavallari, David G. Charlton, H.S. Chen, D. van Dierendonck A. Gaidot, L. Garrido, D. Gele, M.W. Grunewald, G. Gustafson, C. Hartmann, F. Jegerlehner, A. Juste, S. Katsanevas, Valery A. Khoze, N.J. Kjaer, L. Lonnblad, E. Maina, M. Martinez, Rasmus Moller, G.J. van Oldenborgh, J.P. Pansart, P. Perez, P.B. Renton, T. Riemann, M. Sassowsky, J. Schwindling, T.G. Shears, T. Sjostrand, S. Todorova, A. Trabelsi, A. Valassi, C.P. Ward, D.R. Ward, M.F. Watson, N.K. Watson, A. Weber, G.W. Wilson

Feb 1996 - 65 pages

In *Geneva 1995, Physics at LEP2, vol. 1* 141-205, and Preprint - Kunszt, Z. (95,rec.Feb.96) 65 p
Prepared for Conference: C95-06-15.1, Conference: C95-02-02.2, p.141-205
e-Print: hep-ph/9602352 | PDF

Abstract
Previous studies of the physics potential of LEP2 indicated that with the design luminosity of 500 inverse picobarn one may get a direct measurement of the mass of the W-boson with a precision in the range 30 - 50 MeV. This report presents an updated evaluation of the estimated error on the mass of the W-boson based on recent simulation work and improved theoretical input. The most efficient experimental methods which will be used are also described.

$\it Direct measurements of $\Mw$ together with their average. The dashed lines correspond to the indirect limits ($\pm$ 1 $\sigma$) from a global fit in the Standard Model.$ $\it A comparison of direct versus indirect determinations of $\Mt$ and $\Mw$. The contour for the indirect determination corresponds to a 70\% confidence level. The dark shaded region within the contour is that compatible with the direct Higgs search limit, $\Mh$ $ > 65\gev$.$ $\it 70\% confidence level contour plots for fits to $\epsilon$'s in units of $10^{-3}$. The outer contour is for a fit with the current error, $\Delta\Mw = \pm 160\mev$, whereas the inner contours are for $\Delta\Mw = \pm 50\mev$ and $\Delta\Mw = \pm 25\mev$ respectively.$ Show more plots

Record added 1996-02-21, last modified 2016-09-02

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