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Radiative τ pair production and search for new particles decaying into τ

Bartel, W. and Finch, Alexander (1986) Radiative τ pair production and search for new particles decaying into τ. Zeitschrift für Physik C Particles and Fields, 31 (3). p. 359. ISSN 0170-9739

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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.

Item Type: Article
Journal or Publication Title: Zeitschrift für Physik C Particles and Fields
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 63866
Deposited By: ep_importer_pure
Deposited On: 02 May 2013 14:34
Refereed?: Yes
Published?: Published
Last Modified: 30 Aug 2017 14:05
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/63866

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