Search for invisibly decaying Higgs bosons in e e- → Z0 h0 production at sqrt(s) = 183 - 209 GeV

G Abbiendi; C Ainsley; PF Åkesson; G Alexander; G Anagnostou; KJ Anderson; S Asai; D Axen; I Bailey; E Barberio; T Barillari; RJ Barlow; RJ Batley; P Bechtle; T Behnke; KW Bell; PJ Bell; G Bella; A Bellerive; G Benelli; S Bethke; O Biebel; O Boeriu; P Bock; M Boutemeur; S Braibant; RM Brown; HJ Burckhart; S Campana; P Capiluppi; RK Carnegie; AA Carter; JR Carter; CY Chang; DG Charlton; C Ciocca; A Csilling; M Cuffiani; S Dado; A De Roeck; EA De Wolf; K Desch; B Dienes; J Dubbert; E Duchovni; G Duckeck; IP Duerdoth; E Etzion; F Fabbri; P Ferrari; F Fiedler; I Fleck; M Ford; A Frey; P Gagnon; JW Gary; C Geich-Gimbel; G Giacomelli; P Giacomelli; M Giunta; J Goldberg; E Gross; J Grunhaus; M Gruwé; A Gupta; C Hajdu; M Hamann; GG Hanson; A Harel; M Hauschild; CM Hawkes; R Hawkings; G Herten; RD Heuer; JC Hill; D Horváth; P Igo-Kemenes; K Ishii; H Jeremie; P Jovanovic; TR Junk; J Kanzaki; D Karlen; K Kawagoe; T Kawamoto; RK Keeler; RG Kellogg; BW Kennedy; S Kluth; T Kobayashi; M Kobel; S Komamiya; T Krämer; A Krasznahorkay; P Krieger; J von Krogh; T Kuhl; M Kupper; GD Lafferty; H Landsman

Journal article

Search for invisibly decaying Higgs bosons in e e- → Z0 h0 production at sqrt(s) = 183 - 209 GeV

G Abbiendi, C Ainsley, PF Åkesson, G Alexander, G Anagnostou, KJ Anderson, S Asai, D Axen, I Bailey, E Barberio, T Barillari, RJ Barlow, RJ Batley, P Bechtle, T Behnke, KW Bell, PJ Bell, G Bella, A Bellerive, G Benelli Show all

Physics Letters Section B Nuclear Elementary Particle and High Energy Physics | ELSEVIER SCIENCE BV | Published : 2010

DOI: 10.1016/j.physletb.2009.09.010

Abstract

A search is performed for Higgs bosons decaying into invisible final states, produced in association with a Z0 boson in e+ e- collisions at energies between 183 and 209 GeV. The search is based on data samples collected by the OPAL detector at LEP corresponding to an integrated luminosity of about 660 pb-1. The analysis aims to select events containing the hadronic decay products of the Z0 boson and large missing momentum, as expected from Higgs boson decay into a pair of stable weakly interacting neutral particles, such as the lightest neutralino in the Minimal Supersymmetric Standard Model. The same analysis is applied to a search for nearly invisible Higgs boson cascade decays into stable..

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University of Melbourne Researchers

Elisabetta Barberio Author

Grants

Awarded by Israel Academy of Sciences and Humanities

Funding Acknowledgements

Now at University of Antwerpen, Physics Department, B-2610 Antwerpen, Belgium; supported by Interuniversity Attraction Poles Programme - Belgian Science Policy. We particularly wish to thank the SL Division for the efficient operation of the LEP accelerator at all energies and for their close cooperation with our experimental group. In addition to the support staff at our own institutions we are pleased to acknowledge the Department of Energy, USA, National Science Foundation, USA, Particle Physics and Astronomy Research Council, UK, Natural Sciences and Engineering Research Council, Canada, Israel Science Foundation, administered by the Israel Academy of Science and Humanities, Benoziyo Center for High Energy Physics, Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) and a grant under the MEXT-International Science Research Program, Japanese Society for the Promotion of Science (JSPS), German Israeli Bi-national Science Foundation (GIF), Bundesministerium fur Bildung und Forschung, Germany, - National, Research Council of Canada, Hungarian Foundation for Scientific Research, OTKA T-038240, and T-042864, The NWO/NATO Fund for Scientific Research, the Netherlands.