The DELPHI collaboration has searched for lepton flavour violating decays τ → μγ and τ → μgg using a data sample of about 70 pb−1 of integrated luminosity corresponding to 81 000 produced τ+τ− events. No candidates were found for either of the two modes. This yields branching ratio upper limits of B(τ → eγ) < 1.1 × 10−4 and B(τ → μγ) < 6.2 × 10−5 at 90% confidence level.
Upper limits on the branching ratios τ → μγ and τ → eγ / Delphi, Collaboration; Abreu, P.; Adam, W.; Canale, Vincenzo. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 359:(1995), pp. 411-421. [10.1016/0370-2693(95)01045-R]
Upper limits on the branching ratios τ → μγ and τ → eγ
CANALE, VINCENZO
1995
Abstract
The DELPHI collaboration has searched for lepton flavour violating decays τ → μγ and τ → μgg using a data sample of about 70 pb−1 of integrated luminosity corresponding to 81 000 produced τ+τ− events. No candidates were found for either of the two modes. This yields branching ratio upper limits of B(τ → eγ) < 1.1 × 10−4 and B(τ → μγ) < 6.2 × 10−5 at 90% confidence level.File in questo prodotto:
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