Measurement of the W Boson Mass with the ALEPH Detector
Author | : Guillaume Leibenguth |
Publisher | : |
Total Pages | : 92 |
Release | : 2002 |
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Author | : Guillaume Leibenguth |
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Total Pages | : 92 |
Release | : 2002 |
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Total Pages | : 340 |
Release | : 2001 |
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Release | : 2002 |
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The W boson mass has been extracted using W-pairs decaying into evqq and mvqq final states. The events were selected from the data collected with the ALEPH detector during the years 1998, 1999 and 2000, corresponding to a total integrated luminosity of about 650 pb-1. A kinematic fit imposing four-momentum conservation is then applied to improve the invariant mass resolution. The W boson mass is obtained from the invariant mass spectrum by a Monte Carlo reweighting method. Since the statistical and systematical uncertainties are at the same level, the latter are investigated in great detail. The presented W boson mass is then included in a preliminary world average which is used to extract a upper limit on the Higgs boson mass.
Author | : Evelyn Jean Thomson |
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Total Pages | : 228 |
Release | : 1998 |
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Author | : Evelyn Jean Thomson |
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Total Pages | : 0 |
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Author | : Matthew Donald Kennedy Chalmers |
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Author | : Barbara Maartje Raeven |
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Total Pages | : 187 |
Release | : 2000 |
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Author | : Barbara Maartje Raeven |
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Total Pages | : 0 |
Release | : 2000 |
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Author | : Barbara Maartje Raeven |
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Author | : Susan Margaret Goodsir |
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Release | : 2000 |
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