ISSN:
1434-6052
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Physik
Notizen:
Abstract A study of radiative τ pair production,e + e −→τ+τ−γ ande + e −→τ+τ−γγ, is presented. The observed events agree with QED predictions of order α3 and α4. Excited τ′s have been searched for and lower limits on single and pair production are obtained. For QED-like coupling the τ* mass is limited to values greater than 40 GeV (95% CL). A search for unstable charged scalars (S ±) decaying into τ, e.g. charged Higgs, technipions or the supersymmetric partners of τ′s, yields no evidence for such particles. Assuming a branching fraction ofB(S→τν)=1,S masses up to 18.7 GeV are excluded with 95% CL.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF01588032
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