One-prong Τ decays with neutral kaons

Acciarri, M. ; Adam, A. ; Adriani, O. ; Aguilar-Benitez, M. ; Gurtu, A. ; et., al (1995) One-prong Τ decays with neutral kaons Physics Letters B, 352 (3-4). pp. 487-497. ISSN 0370-2693

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We have analyzed one-prong Τ decays with neutral kaons using the information from a fine-grained hadron calorimeter. The data sample consists of 43 500 Z → Τ+Τ(γ) events collected by the L3 detector at LEP in 1991, 1992 and 1993. The following branching fractions are measured: B(Τ→νΤπ0) = 0.0095±0.0015(stat)±0.0006(syst), B(Τ→νΤπ π00) = 0.0041±0.0012(stat)±0.0003(syst), B(Τ→νΤπK00) = 0.0031±0.0012(stat)±0.0004(syst).

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