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 GeV/c(2) at 95% confidence level. (C) 1998 Elsevier Science B.V. All rights reserved.
|Titolo:||Search for the standard model Higgs boson at the LEP2 collider near root s = 183 GeV|
|Data di pubblicazione:||1998|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/S0370-2693(98)01239-8|
|Appare nelle tipologie:||1.1 Articolo in rivista|