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: mH>87.9 GeV/c2 at 95% confidence level.

Search for the standard model Higgs boson at the LEP2 collider near / R., B., D., B., D., D., P., G., C., G., S., J., J. P., L., A., L., F., M., E., M., M. N., M., J. Y., N., P., P., B., P., R., A., M. P., C., M., C., J. M., C., M., D., E., F., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 440:(1998), pp. 403-418. [10.1016/S0370-2693(98)01239-8]

Search for the standard model Higgs boson at the LEP2 collider near

GREGORIO, ANNA;GIANNINI, GIANROSSANO;
1998-01-01

Abstract

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: mH>87.9 GeV/c2 at 95% confidence level.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11368/2561096
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