Search for neutral Higgs bosons decaying into four taus at LEP2

2010/03/03 by ALEPH Collaboration, S. Schael, R. Barate +259 · 1 voice
Physics and Astronomy · #hep-ex #hep-ph

paper · pdf · doi:10.1007/jhep05(2010)049

published as JHEP 1005:049,2010 · 18 pages, 16 figures

arxiv published 2010/03/03 · arxiv created 2010/04/19 · arxiv updated 2010/04/19

Abstract

A search for the production and non-standard decay of a Higgs boson, h, into four taus through intermediate pseudoscalars, a, is conducted on 683 pb-1 of data collected by the ALEPH experiment at centre-of-mass energies from 183 to 209 GeV. No excess of events above background is observed, and exclusion limits are placed on the combined production cross section times branching ratio, ξ² = σ(e+e- --> Zh)/σ_SM(e+e- --> Zh) x B(h --> aa)x B(a --> τ⁺τ^-)². For mh < 107 GeV/c2 and 4 < ma < 10 GeV/c2, ξ² > 1 is excluded at the 95% confidence level.

Discussions

• Another example of a null result in search of beyond-the-standard-model physics, this time from ALEPH: http://arxiv.org/abs/1003.0705 [bsky, 0 points, 0 comments]

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