The reactions e+ e- --> hZ* and e+ e- --> hA have been used to search for the neutral Higgs bosons h and A of the MSSM in the case where the CP-odd A is lighter than 2m(mu), taking into account the large h --> AA decay branching ratio. No signal was found in the data sample collected until the end of 1991 by the ALEPH experiment at LEP. For tan beta greater-than-or-equal-to 1, m(A) < 2m(mu) is excluded at 95% CL for any m(h).
SEARCH FOR A VERY LIGHT CP-ODD NEUTRAL HIGGS BOSON OF THE MSSM
LUSIANI, Alberto;ROLANDI, LUIGI;LIGABUE, FRANCO;
1992
Abstract
The reactions e+ e- --> hZ* and e+ e- --> hA have been used to search for the neutral Higgs bosons h and A of the MSSM in the case where the CP-odd A is lighter than 2m(mu), taking into account the large h --> AA decay branching ratio. No signal was found in the data sample collected until the end of 1991 by the ALEPH experiment at LEP. For tan beta greater-than-or-equal-to 1, m(A) < 2m(mu) is excluded at 95% CL for any m(h).File in questo prodotto:
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