Search for Charged Higgs, Scalar Taus, and a Test of Technicolor Models

  title={Search for Charged Higgs, Scalar Taus, and a Test of Technicolor Models},
  author={Bernardo Adeva and Desmond P. Barber and Uwe Jurgen Becker and Jes{\'u}s Berdugo and Gerald Berghoff and A. Boehm and Julia Branson and Joanne Denise Burger and Mart{\'i}n Capell and Marcos Cerrada and Charles Chi-hsiang Chang and Hao Sen Chen and M. L. Chen and Mingrui Chen and Morgan Y. Chen and Robert Clare and E. Deffur and Peter N. Duinker and Z. Y. Feng and Henrike Fesefeldt and D. Fong and Masayoshi Fukushima and D. Harting and Thomas Hebbeker and Gregor Herten and Mark C. Ho and M. M. Ilyas and Da Zhen Jiang and D. Kooijman and W. Krenz and Qing Zhang Li and David Luckey and Erik J. Luit and C. Ma{\~n}{\'a} and Graziano Massaro and Toshiaki Matsuda and Harvey B. Newman and Martin Pohl and F. P. Poschmann and J. P. Revol and Martin Rohde and Hans Rykaczewski and J. A. Rubio and J. M. Salicio and Ingrid Schulz and K. Sinram and M. Steuer and G. M. Swider and H. W. Tang and D. Teuchert and Samuel C. C. Ting and K. L. Tung and Ming Qian Wang and Martin White and S. X. Wu and R. Y. Zhu and Yc Zhu},
Abstract We have used our measurements of final states from e + e − containing an isolated muon and a hadronic or electron shower to search for new spin 0 charged particles. We exclude (95% CL) a supersymmetric partner of the τ with a mass less than 14 GeV/ c 2 . We obtain upper limits on the branching ratio to τv τ for charged Higgs particles or technipions with masses up to 14 GeV/ c 2 . This disagrees with some technicolor model predictions.