Final results of the searches for neutral Higgs bosons in e+ e- collisions at s**(1/2) up to 209-GeV

The final results of the ALEPH search for the Standart Model Higgs boson at LEP, with data collected in the year 2000 at center-of-mass energies up to 209 GeV, are presented. The changes with respect to the preceding publication are described and a complete study of systematic effects is reported. The findings of this final analysis confirm the preliminary results published in November 2000 shortly after the closing down of the LEP collider: a significant excess of events is observed, consistent with the production of a 115 GeV/ c 2 Standard Model Higgs boson.

Note:

15 pages, 6 figures

electron positron: colliding beams
electron positron: annihilation
Higgs particle: search for
Higgs particle: neutral particle
Higgs particle: electroproduction
Z0: associated production
supersymmetry
Higgs particle: pair production
Higgs particle: decay modes
Higgs particle: mass

References(16)

Figures(10)

Observation of an excess in the search for the standard model Higgs boson at ALEPH

ALEPH

Collaboration

•

R. Barate
(
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•
e-Print:
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G.S. Guralnik
(
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(
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T.W.B. Kibble
(
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