2010/06/12 by James Beacham, Beacham, James
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #hep-ex #hep-ph
paper · pdf · doi:10.48550/arxiv.1006.2491
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
arxiv created 2010/06/12 · arxiv updated 2010/06/15
A search has been performed on 683 pb-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 looking for a Higgs boson decaying into four τ leptons via intermediate pseudoscalar a particles, for a Higgs mass range of 70 to 114 GeV / c2 and an a mass range of 4 to 12 GeV / c2. No excess above background is seen and a limit is placed on ξ2 = \fracσ(e+ e-\ra Z+h)σSM(e+ e-\ra Z+h)×(h\ra aa)×(a\ra τ+τ-)2 in the mh, ma plane. For mh < 107 GeV / c2 and ma < 10 GeV / c2, ξ2 > 1 can be excluded at the 95% confidence level.