Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Measurement of W pair productions in e+ e- collisions at centre-of-mass energies from 183-GeV to 209-GeV.
AU - Bouhova-Thacker, E. V.
AU - Finch, A. J.
AU - Hughes, G.
AU - Jones, Roger
AU - Smizanska, Ml
AU - Clarke, D. P.
AU - Ellis, G.
AU - Pearson, M. R.
AU - Robertson, N. A.
AU - ALEPH Collaboration, The
PY - 2004/12
Y1 - 2004/12
N2 - The W + W- production cross section is measured from a data sample corresponding to a total integrated luminosity of 683 pb-1, collected by the ALEPH experiment at LEP at centre-of-mass energies from 183 to 209 GeV. Individual cross sections for the different topologies arising from W decays into leptons or hadrons, as well as the total W-pair cross section are given at eight centre-of-mass energies. The results are found to be in agreement with recently developed Standard Model calculations at the one percent level. The hadronic branching fraction of the W boson is measured to be = 67.13 0.37(stat.) 0.15(syst.)%, from which the CKM matrix element is determined to be 0.958 0.017(stat.) 0.008(syst.)
AB - The W + W- production cross section is measured from a data sample corresponding to a total integrated luminosity of 683 pb-1, collected by the ALEPH experiment at LEP at centre-of-mass energies from 183 to 209 GeV. Individual cross sections for the different topologies arising from W decays into leptons or hadrons, as well as the total W-pair cross section are given at eight centre-of-mass energies. The results are found to be in agreement with recently developed Standard Model calculations at the one percent level. The hadronic branching fraction of the W boson is measured to be = 67.13 0.37(stat.) 0.15(syst.)%, from which the CKM matrix element is determined to be 0.958 0.017(stat.) 0.008(syst.)
U2 - 10.1140/epjc/s2004-02048-3
DO - 10.1140/epjc/s2004-02048-3
M3 - Journal article
VL - 38
SP - 147
EP - 160
JO - European Physical Journal C: Particles and Fields
JF - European Physical Journal C: Particles and Fields
SN - 1434-6044
IS - 2
ER -