English

Higgs to Four Taus at ALEPH

High Energy Physics - Experiment 2010-06-15 v1 High Energy Physics - Phenomenology

Abstract

A search has been performed on 683 pb1^{-1} of data collected by the ALEPH detector at the Large Electron-Positron (LEP), collider at centre-of-mass energies from 183 to 209 GeV\mathrm{GeV} looking for a Higgs boson decaying into four τ\tau leptons via intermediate pseudoscalar aa particles, for a Higgs mass range of 70 to 114 GeV/c2\mathrm{GeV} / c^2 and an aa mass range of 4 to 12 GeV/c2\mathrm{GeV} / c^2. No excess above background is seen and a limit is placed on ξ2=σ(e+e\raZ+h)σSM(e+e\raZ+h)×(h\raaa)×(a\raτ+τ)2\xi^2 = \frac{\sigma(e^+ e^-\ra Z+h)}{\sigma_{SM}(e^+ e^-\ra Z+h)}\times(h\ra aa)\times(a\ra \tau^+\tau^-)^2 in the mh,mam_h, m_a plane. For mh<107  GeV/c2m_h < 107 \; \mathrm{GeV} / c^2 and ma<10  GeV/c2m_a < 10 \; \mathrm{GeV} / c^2, ξ2>1\xi^2 > 1 can be excluded at the 95\% confidence level.

Keywords

Cite

@article{arxiv.1006.2491,
  title  = {Higgs to Four Taus at ALEPH},
  author = {James Beacham},
  journal= {arXiv preprint arXiv:1006.2491},
  year   = {2010}
}

Comments

To appear in the proceedings of the 45th Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Valle d'Aosta, Italy, 13-20 Mar 2010. 4 pages, 1 figure

R2 v1 2026-06-21T15:35:27.206Z