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Charged Kaon production in 3-prong tau decays in DELPHI
The production of charged kaons in the three-prong decay of the tau is studied using the data collected in the DELPHI detector during the LEP-1 data taking between, 1992 and 1995. Algorithms for the reconstruction of the 7 decay vertex and the charged kaon identification in the Barrel RICH are prese...
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Lenguaje: | eng |
Publicado: |
2001
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1016/S0920-5632(01)01227-0 http://cds.cern.ch/record/516276 |
Sumario: | The production of charged kaons in the three-prong decay of the tau is studied using the data collected in the DELPHI detector during the LEP-1 data taking between, 1992 and 1995. Algorithms for the reconstruction of the 7 decay vertex and the charged kaon identification in the Barrel RICH are presented. With these tools we tag tau /sup -/ to K/sup -/K/sup +/ tau /sup -/ nu /sub tau / and tau /sup -/K/sup -/ pi /sup +/ pi /sup -/ nu /sub tau / decays on an event-by-event basis. Preliminary results for the inclusive branching ratios tau /sup -/ to K/sup -/K/sup +/ pi /sup -/ nu /sub tau / and tau /sup -/ to K/sup -/ pi /sup +/ pi /sup -/ nu /sub tau /, determined from the 1994 data sample are presented. (5 refs). |
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