In a data sample of 78.3 pb-1 collected in 1996 and 1997 by the ALEPH detector at centre-of-mass energies from 161 to 184 GeV, invisible decays of a Higgs boson have been searched for in the reaction e+e--->hZ, where the Z can decay into e+e-, μ+μ- or qq¯. No evidence for a signal is found and limits on the production cross section are derived as a function of the Higgs boson mass. These results are combined with those obtained in an update of the analyses of the ALEPH data taken at LEP 1. For a production cross section equal to that of the minimal standard model Higgs boson, masses below 80 GeV/c2 are excluded at 95% C.L.

Search for invisible Higgs boson decays in e+e− collisions at centre-of-mass energies up to 184 GeV / R., B., D., D., P., G., C., G., S., J., J. P., L., F., M., E., M., M. N., M., J. Y., N., B., P., R., A., M. P., C., M., C., J. M., C., M., D., E., F., M., F.B., Garrido, L.l., E., G., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 450:(1999), pp. 301-312. [10.1016/S0370-2693(99)00117-3]

Search for invisible Higgs boson decays in e+e− collisions at centre-of-mass energies up to 184 GeV

GREGORIO, ANNA;GIANNINI, GIANROSSANO;
1999-01-01

Abstract

In a data sample of 78.3 pb-1 collected in 1996 and 1997 by the ALEPH detector at centre-of-mass energies from 161 to 184 GeV, invisible decays of a Higgs boson have been searched for in the reaction e+e--->hZ, where the Z can decay into e+e-, μ+μ- or qq¯. No evidence for a signal is found and limits on the production cross section are derived as a function of the Higgs boson mass. These results are combined with those obtained in an update of the analyses of the ALEPH data taken at LEP 1. For a production cross section equal to that of the minimal standard model Higgs boson, masses below 80 GeV/c2 are excluded at 95% C.L.
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11368/2562524
 Avviso

Registrazione in corso di verifica.
La registrazione di questo prodotto non è ancora stata validata in ArTS.

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 10
  • ???jsp.display-item.citation.isi??? 7
social impact