Achard, P. ; Adriani, O. ; Aguilar-Benitez, M. ; Gurtu, A. ; et., al (2004) Measurement of the Z-Boson mass using e+e-→Zγ events at centre-of-mass energies above the Z pole Physics Letters B, 585 (1-2). pp. 42-52. 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/j.physletb.2004.01.074
Abstract
Events from the e+e-→Zγ process with hard initial-state radiation collected with the L3 detector at centre-of-mass energies between 183 and 209 GeV are used to measure the mass of the Z boson. Decays of the Z boson into hadrons or muon pairs are considered and the Z mass is determined to be 91.272±0.032(stat)±0.033(syst) GeV, in agreement with the value measured at the Z resonance. Alternatively, assuming this measured value of the Z mass, the method determines the LEP centre-of-mass energy, found to be 175±68(stat)±68(syst) MeV lower than the nominal value.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 84020 |
| Deposited On: | 23 Feb 2012 12:05 |
| Last Modified: | 23 Feb 2012 12:05 |
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