Search for neutral Higgs bosons decaying into four taus at LEP2

• Titel: Search for neutral Higgs bosons decaying into four taus at LEP2
• Mitwirkende: Schael, Stefan [VerfasserIn]
• Mitwirkende: Hanke, Paul [VerfasserIn]
• Mitwirkende: Hepp, Volker [VerfasserIn]
• Mitwirkende: Kluge, Eike-Erik [VerfasserIn]
• Mitwirkende: Tittel, Klaus [VerfasserIn]
• Verf.angabe: The ALEPH collaboration
• E-Jahr: 2010
• Jahr: 13 May 2010
• Umfang: 18 S.
• Fussnoten: The ALEPH collaboration: S. Schael, P. Hanke, V. Hepp, E.E. Kluge, K. Tittel [und viele weitere] ; Gesehen am10.08.2023
• Titel Quelle: Enthalten in: Journal of high energy physics
• Ort Quelle: Berlin : Springer, 1997
• Jahr Quelle: 2010
• Band/Heft Quelle: (2010), 5, Artikel-ID 49, Seite 1-18
• ISSN Quelle: 1029-8479
• DOI: doi:10.1007/JHEP05(2010)049
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: e+-e- Experiments
• K10plus-PPN: 1855108232

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, $ {\xi^2} = \frac{{\sigma \left( {{\text{e}^{+} }{\text{e}^{-} } \to {\text{Zh}}} \right)}}{{{\sigma_{\text{SM}}}\left( {{\text{e}^{+} }{\text{e}^{-} } \to {\text{Zh}}} \right)}} \times B\left( {h \to {\text{aa}}} \right) \times B{\left( {{\text{a}} \to {\tau^{+} }{\tau^{-} }} \right)^2} $. For mh < 107 GeV/c2 and 4 < ma < 10 GeV/c2, ξ2 > 1 is excluded at the 95% confidence level.