R. Barate et al., SEARCH FOR THE STANDARD MODEL HIGGS-BOSON AT THE LEP2 COLLIDER NEAR ROOT-S = 183 GEV, Physics letters. Section B, 440(3-4), 1998, pp. 403-418
During 1997 the ALEPH experiment at LEP gathered 57 pb(-1) of data at
centre-of-mass energies near 183 GeV. These data are used to look for
possible signals from the production of the Standard Model Higgs boson
in the reaction e(+)e(-) --> HZ. No evidence of a signal is found in
the data; seven events are selected, in agreement with the expectation
of 7.2 events from background processes. This observation results in
an improved lower limit on the mass of the Higgs boson: m(H) > 87.9 Ge
V/c(2) at 95% confidence level. (C) 1998 Elsevier Science B.V. All rig
hts reserved.