Searches for invisibly decaying Higgs bosons with the DELPH detector at LEP.

Delphi Collaboration, The (2004) Searches for invisibly decaying Higgs bosons with the DELPH detector at LEP. European Physical Journal C: Particles and Fields, 32 (4). pp. 475-492. ISSN 1434-6044

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Abstract

Searches for H Z production with the Higgs boson decaying into an invisible final state were performed using the data collected by the DELPHI experiment at centre-of-mass energies between 188 GeV and 209 GeV. Both hadronic and leptonic final states of the Z boson were analysed. In addition to the search for a heavy Higgs boson, a dedicated search for a light Higgs boson down to 40 GeV/c2 was performed. No signal was found. Assuming the Standard Model HZ production cross-section, the mass limit for invisibly decaying Higgs bosons is 112.1 GeV/c2 at 95% confidence level. An interpretation in the Minimal Supersymmetric extension of the Standard Model (MSSM) and in a Majoron model is also given.

Item Type: Journal Article
Journal or Publication Title: European Physical Journal C: Particles and Fields
Uncontrolled Keywords: /dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code: 23979
Deposited By: ep_ss_importer
Deposited On: 25 Feb 2009 11:45
Refereed?: Yes
Published?: Published
Last Modified: 10 Jun 2019 18:39
URI: https://eprints.lancs.ac.uk/id/eprint/23979

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