Acciarri, M. ; Achard, P. ; Adriani, O. ; Gurtu, A. ; et., al (2000) Measurement of the lifetime of the tau lepton Physics Letters B, 479 (1-3). pp. 67-78. ISSN 0370-2693
Full text not available from this repository.
Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0370-2693(00)00347-6
Abstract
The tau lepton lifetime is measured with the L3 detector at LEP using the complete data taken at centre-of-mass energies around the Z pole resulting in ΤΤ= =293.2 ± 2.0 (stat.) ± 1.5(syst) fs. The comparison of this result with the muon lifetime supports lepton universality of the weak charged current at the level of six per mille. Assuming lepton universality, the value of the strong coupling constant, αs is found to be αs(mΤ2) = 0.319 ± 0.015 (exp) ± 0.014 (theory).
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 83579 |
| Deposited On: | 21 Feb 2012 12:53 |
| Last Modified: | 21 Feb 2012 12:53 |
Repository Staff Only: item control page
