Search for the minimal standard model Higgs boson in e+ e- collisions at LEP

Akrawy, M.Z.; Alexander, G.; Allison, J.; Allport, P.P.; Anderson, K.J.; Armitage, J.C.; Arnison, G.T.J.; Ashton, P.; Azuelos, G.; Baines, J.T.M.

doi:10.1016/0370-2693(91)91761-J

Search for the minimal standard model Higgs boson in e+ e- collisions at LEP

OPAL

Collaboration

•

M.Z. Akrawy
(
- Queen Mary, U. of London
)

Oct, 1990

13 pages

Published in:

Phys.Lett.B 253 (1991) 511-523

Published: 1991

DOI:

10.1016/0370-2693(91)91761-J

Report number:

CERN-PPE-90-150

Experiments:

CERN-LEP-OPAL

View in:

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Abstract: (Elsevier)

A search for the minimal standard model Higgs boson (H 0 ) has been performed with data from e + e − collisions in the OPAL detector at LEP. The analysis is based on approximately 8 pb −1 of data taken at centre-of-mass energies between 88.2 and 95.0 GeV. The search concentrated on the reaction e + e − →( e + e − , μ + μ − , v v or τ + τ − ) H 0 , H 0 →( q q or τ + τ − ) for Higgs boson masses above 25 GeV/ c 2 . No Higgs boson candidates have been observed. The present study, combined with previous OPAL publications, excludes the existence of a standard model Higgs boson with mass in the range 3< m H 0 <44GeV/ c 2 at the 95% confidence level.

electron positron: colliding beams
colliding beams: electron positron
electron positron: annihilation
annihilation: electron positron
Z0: electroproduction
electroproduction: Z0
Z0: decay modes
decay modes: Z0
Higgs particle: search for
Higgs particle: neutral particle

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