Acciarri, M. ; Achard, P. ; Adriani, O. ; Gurtu, A. ; et., al (2000) Measurement of the W-pair production cross section and W-decay branching fractions in e+e- interactions at √s = 189 GeV Physics Letters B, 496 (1-2). pp. 19-23. ISSN 0370-2693
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0370-2693(00)01273-9
Abstract
The data collected by the L3 experiment at LEP at a centre-of-mass energy of 188.6 GeV are used to measure the W-pair production cross section and the W-boson decay branching fractions. These data correspond to an integrated luminosity of 176.8 pb-1. The total cross section for W-pair production, combining all final states, is measured to be σWW=16.24±0.37 (stat.)±0.22 (syst.) pb. Including our data collected at lower centre-of-mass energies, the hadronic branching fraction of the W-boson is determined to be B(W→qq)=[68.20±0.68 (stat.)±0.33 (syst.)]%. The results agree with the Standard Model predictions.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 83413 |
| Deposited On: | 21 Feb 2012 07:32 |
| Last Modified: | 21 Feb 2012 07:32 |
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