A precise measurement of the tau lifetime
- NázevTitle
- A precise measurement of the tau lifetimeA precise measurement of the tau lifetime
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- J Abdallah, P Abreu, W Adam, P Adzic, A. Sopczak
- ExperimentCollaboration
- DELPHI
- DOIDOI
- 10.1140/epjc/s2004-01953-7
- Časopis / citaceJournal / citation
- The European Physical Journal C 36(3), 283-296 (2004) · ISSN 1434-6044
- RokYear
- 2004
- JazykLanguage
- eng
- ZáznamyRecords
- CitovánoCited by
- 23 (INSPIRE-HEP)
- Plný text (open access)Full text (open access)
- https://research.vu.nl/en/publications/90f1d18d-9f70-4b7c-8177-84f488972112
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
The tau lepton lifetime has been measured with the e(+) e(-) --> tau(+) tau(-) events collected by the DELPHI detector at LEP in the years 1991 - 1995. Three different methods have been exploited, using both one-prong and three-prong tau decay channels. Two measurements have been made using events in which both taus decay to a single charged particle. Combining these measurements gave tau(tau) ( 1 prong) = 291.8 +/- 2.3(stat) +/- 1.5(sys) fs. A third measurement using taus which decayed to three charged particles yielded tau(tau) (3 prong) = 288.6 +/- 2.4(stat) +/- 1.3(sys) fs. These were combined with previous DELPHI results to measure the tau lifetime, using the full LEP1 data sample, to be tau(tau) = 290.9 +/- 1.4(stat) +/- 1.0(sys) fs.
The tau lepton lifetime has been measured with the e(+) e(-) --> tau(+) tau(-) events collected by the DELPHI detector at LEP in the years 1991 - 1995. Three different methods have been exploited, using both one-prong and three-prong tau decay channels. Two measurements have been made using events in which both taus decay to a single charged particle. Combining these measurements gave tau(tau) ( 1 prong) = 291.8 +/- 2.3(stat) +/- 1.5(sys) fs. A third measurement using taus which decayed to three charged particles yielded tau(tau) (3 prong) = 288.6 +/- 2.4(stat) +/- 1.3(sys) fs. These were combined with previous DELPHI results to measure the tau lifetime, using the full LEP1 data sample, to be tau(tau) = 290.9 +/- 1.4(stat) +/- 1.0(sys) fs.