Search for neutral Higgs bosons decaying into four taus at LEP2

van der Aa, Olivier;Delaere, Christophe;Leibenguth, Guillaume;Lemaitre, Vincent;et.al.
(2010) The Journal of High Energy Physics — Vol. 1005, p. 49 (2010)

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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, xi^2 = sigma(e+e- --> Zh)/sigma_{SM}(e+e- --> Zh) x B(h --> aa)x B(a --> au^+ au^-)^2. For mh < 107 GeV/c2 and 4 < ma < 10 GeV/c2, xi^2 > 1 is excluded at the 95% confidence level.
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van der Aa, O., Delaere, C., Leibenguth, G., Lemaitre, V., & et al. (2010). Search for neutral Higgs bosons decaying into four taus at LEP2. The Journal of High Energy Physics, 1005, 49. https://hdl.handle.net/2078.5/49461 (Original work published 2010)