Search for exotic tau decays

S. Keh, D. Antreasyan, H. W. Bartels, D. Besset, Ch Bieler, J. K. Bienlein, A. Bizzeti, E. D. Bloom, I. Brock, K. Brockmüller, R. Cabenda, A. Cartacci, M. Cavalli-Sforza, R. Clare, A. Compagnucci, G. Conforto, S. Cooper, R. Cowan, D. Coyne, A. EnglerK. Fairfield, G. Folger, A. Fridman, J. Gaiser, D. Gelphman, G. Glaser, G. Godfrey, K. Graaf, F. H. Heimlich, F. H. Heinsius, R. Hofstadter, J. Irion, H. Janssen, Z. Jakubowski, K. Karch, T. Kiel, H. Kilian, I. Kirkbride, T. Kloiber, M. Kobel, W. Koch, A. C. König, K. Königsmann, R. W. Kraemer, S. Krüger, G. Landi, R. Lee, S. Leffler, R. Lekebusch, A. M. Litke, W. Lockman, S. Lowe, B. Lurz, D. Marlow, H. Marsiske, W. Maschmann, P. McBride, H. Meyer, B. Muryn, F. Messing, W. J. Metzger, B. Monteleoni, R. Nernst, B. Niczyporuk, G. Nowak, C. Peck, P. G. Pelfer, B. Pollock, F. C. Porter, D. Prindle, P. Ratoff, M. Reidenbach, B. Renger, C. Rippich, M. Scheer, P. Schmitt, J. Schotanus, J. Schütte, A. Schwarz, D. Sievers, T. Skwarnicki, V. Stock, K. Strauch, U. Strohbusch, J. Tompkins, H. J. Trost, B. van Uitert, R. T. van de Walle, H. Vogel, A. Voigt, U. Volland, K. Wachs, K. Wacker, W. Walk, H. Wegener, D. Williams, P. Zschorsch

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

The Crystal Ball detector at the Doris II storage ring at DESY was used to search for the exotic decay processes τ→eγ,τ→eπ0, and τ→eη. No signal was observed. We obtained the following 90% CL upper limits on the branching fractions: B(τ→eγ)<2.0×10-4, B(τ→eπ0)<1.4×10-4, B(τ→eη)<2.4×10-4.

Original languageEnglish (US)
Pages (from-to)123-128
Number of pages6
JournalPhysics Letters B
Volume212
Issue number1
DOIs
StatePublished - Sep 15 1988

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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    Keh, S., Antreasyan, D., Bartels, H. W., Besset, D., Bieler, C., Bienlein, J. K., Bizzeti, A., Bloom, E. D., Brock, I., Brockmüller, K., Cabenda, R., Cartacci, A., Cavalli-Sforza, M., Clare, R., Compagnucci, A., Conforto, G., Cooper, S., Cowan, R., Coyne, D., ... Zschorsch, P. (1988). Search for exotic tau decays. Physics Letters B, 212(1), 123-128. https://doi.org/10.1016/0370-2693(88)91248-8