A search has been made for a very light Higgs boson in the processes e+e- -> e+e-H and e+e--> mu+mu- H using data collected by ALEPH at the LEP e+e- collider at centre of mass energies close to the Z peak. The mass range between 0 and 57 MeV is unambigously excluded at the 95% confidence level. If we combine this with our previously published analysis, the complete range from 0 to 24 GeV is excluded at 95% CL. The search is extended to light Higgs bosons of the minimal supersymmetric standard model, with the result that all possibilities of coupling are excluded for Higgs masses below 3 GeV.

D., D., B., D., C., G., J. P., L., M. N., M., J. M., C., et al. (1990). Search For A Very Light Higgs Boson In Z decays. PHYSICS LETTERS. SECTION B, 245(2), 289-297 [10.1016/0370-2693(90)90148-Y].

Search For A Very Light Higgs Boson In Z decays

BOTTIGLI, UBALDO;CIOCCI, MARIA AGNESE;MARROCCHESI, PIER SIMONE;
1990-01-01

Abstract

A search has been made for a very light Higgs boson in the processes e+e- -> e+e-H and e+e--> mu+mu- H using data collected by ALEPH at the LEP e+e- collider at centre of mass energies close to the Z peak. The mass range between 0 and 57 MeV is unambigously excluded at the 95% confidence level. If we combine this with our previously published analysis, the complete range from 0 to 24 GeV is excluded at 95% CL. The search is extended to light Higgs bosons of the minimal supersymmetric standard model, with the result that all possibilities of coupling are excluded for Higgs masses below 3 GeV.
1990
D., D., B., D., C., G., J. P., L., M. N., M., J. M., C., et al. (1990). Search For A Very Light Higgs Boson In Z decays. PHYSICS LETTERS. SECTION B, 245(2), 289-297 [10.1016/0370-2693(90)90148-Y].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

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/11365/38805
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo