Measurement of the τ lepton lifetime
The mean lifetime of the τ lepton is measured in a sample of 25700 τ pairs collected in 1992 with the ALEPH detector at LEP. A new analysis of the 1-1 topology events is introduced. In this analysis, the dependence of the impact parameter sum distribution on the daughter track momenta is taken into...
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1996
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sg-smu-ink.sis_research-68772021-03-19T10:06:03Z Measurement of the τ lepton lifetime BUSKULIC, D. THULASIDAS, M. The mean lifetime of the τ lepton is measured in a sample of 25700 τ pairs collected in 1992 with the ALEPH detector at LEP. A new analysis of the 1-1 topology events is introduced. In this analysis, the dependence of the impact parameter sum distribution on the daughter track momenta is taken into account, yielding improved precision compared to other impact parameter sum methods. Three other analyses of the one- and three-prong τ decays are updated with increased statistics. The measured lifetime is 293.5±3.1± 1.7 fs. Including previous (1989–1991) ALEPH measurements, the combined τ lifetime is 293.7±2.7±1.6fs. 1996-01-01T08:00:00Z text https://ink.library.smu.edu.sg/sis_research/5874 info:doi/10.1007/s002880050132 Research Collection School Of Computing and Information Systems eng Institutional Knowledge at Singapore Management University Computer Sciences Databases and Information Systems |
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Computer Sciences Databases and Information Systems |
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Computer Sciences Databases and Information Systems BUSKULIC, D. THULASIDAS, M. Measurement of the τ lepton lifetime |
| description |
The mean lifetime of the τ lepton is measured in a sample of 25700 τ pairs collected in 1992 with the ALEPH detector at LEP. A new analysis of the 1-1 topology events is introduced. In this analysis, the dependence of the impact parameter sum distribution on the daughter track momenta is taken into account, yielding improved precision compared to other impact parameter sum methods. Three other analyses of the one- and three-prong τ decays are updated with increased statistics. The measured lifetime is 293.5±3.1± 1.7 fs. Including previous (1989–1991) ALEPH measurements, the combined τ lifetime is 293.7±2.7±1.6fs. |
| format |
text |
| author |
BUSKULIC, D. THULASIDAS, M. |
| author_facet |
BUSKULIC, D. THULASIDAS, M. |
| author_sort |
BUSKULIC, D. |
| title |
Measurement of the τ lepton lifetime |
| title_short |
Measurement of the τ lepton lifetime |
| title_full |
Measurement of the τ lepton lifetime |
| title_fullStr |
Measurement of the τ lepton lifetime |
| title_full_unstemmed |
Measurement of the τ lepton lifetime |
| title_sort |
measurement of the τ lepton lifetime |
| publisher |
Institutional Knowledge at Singapore Management University |
| publishDate |
1996 |
| url |
https://ink.library.smu.edu.sg/sis_research/5874 |
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1770575638904700928 |