Measurement of the W boson mass and width in e+e- collisions at LEP

Details Measurement of the W boson mass and width in e+e- collisions at LEP Measurement of the W boson mass and width in e+e- collisions at LEP

2006-05-04

arxiv.org/abs/hep-ex/0605011v1

Eur.Phys.J.C47:309-335,2006

Physics

High Energy Physics

High Energy Physics - Experiment

45 pages, 23 figures

Scientific paper

10.1140/epjc/s2006-02576-8

The mass of the W boson is determined from the direct reconstruction of its decays into purely hadronic and semi-leptonic events in e+e- collisions at LEP. The data sample corresponds to an integrated luminosity of 683 inverse picobarns collected with the ALEPH detector at centre-of-mass energies up to 209 GeV. To minimise any effect from colour reconnection a new procedure is adopted in which low energy particles are not considered in the mass determination from the purely hadronic channel. The combined result from all channels is Mw = 80.440+-0.043(stat.)+-0.024(syst.)+-0.009(FSI)+-0.009(LEP) GeV/c**2 where FSI represents the possible effects of final state interactions in the purely hadronic channel. From two-parameter fits to the W mass and width, the W width is found to be Gw = 2.14+-0.09(stat.)+-0.04(syst.)+-0.05(FSI)+-0.01(LEP) GeV

Affiliated with

Also associated with

No associations

Rating

Measurement of the W boson mass and width in e+e- collisions at LEP does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Measurement of the W boson mass and width in e+e- collisions at LEP, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurement of the W boson mass and width in e+e- collisions at LEP will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-299778