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Search for the neutral Higgs bosons of the standard model and the MSSM in e+ e- collisions at S**(1/2) = 189-GeV

ALEPH Collaboration, The and Barate, R. and Bowdery, Christopher and Finch, Alexander and Foster, Frank and Hughes, Gareth and Jones, Roger and Smizanska, Maria (2000) Search for the neutral Higgs bosons of the standard model and the MSSM in e+ e- collisions at S**(1/2) = 189-GeV. The European Physical Journal C (EPJ C) - Particles and Fields, 17 (2). pp. 223-240. ISSN 1434-6052

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Abstract

Neutral Higgs bosons of the Standard Model and of the MSSM are searched for in the data collected at a centre-of-mass energy of 188.6 GeV by the ALEPH experiment at LEP, with an integrated luminosity of 176 pb−1 . No evidence for a signal is found. A lower limit of 92.9 GeV/c2 at 95% confidence level is set on the mass of the Standard Model Higgs boson, with an expected sensitivity of 95.9 GeV/c2 . In the MSSM, for tanβ≥0.7 and for benchmark parameter choices, observed (expected) lower limits of 82.5 (83.1) GeV/c2 and 82.6 (83.2) GeV/c2 are derived for the masses of the neutral Higgs bosons h and A , respectively. An update of the general MSSM parameter scan is also presented.

Item Type: Article
Journal or Publication Title: The European Physical Journal C (EPJ C) - Particles and Fields
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 63947
Deposited By: ep_importer_pure
Deposited On: 08 May 2013 13:58
Refereed?: Yes
Published?: Published
Last Modified: 10 Oct 2017 18:01
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/63947

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