DOI 10.1007/s100520000473
Search for the neutral Higgs bosons of the Standard Model
and the MSSM in e+e- collisions at
GeV
The ALEPH Collaboration
R. Barate - et al.
Laboratoire de Physique des Particules (LAPP), IN2P3-CNRS,
74019 Annecy-le-Vieux Cedex, France
Received: 31 January 2000 / Published online: 8 September 2000 - © Springer-Verlag 2000
Abstract
Neutral Higgs bosons of the Standard Model and of the MSSM are
searched for in the data collected at a centre-of-mass energy of
188.6GeV by the ALEPH experiment at LEP,
with an integrated luminosity of 176
.
No evidence for a signal is found.
A lower limit of 92.9
GeV/c2 at 95% confidence
level is set on the mass of the Standard Model Higgs boson,
with an expected sensitivity of 95.9
GeV/c2.
In the MSSM, for
and for benchmark parameter choices,
observed (expected) lower limits of 82.5
(83.1)
GeV/c2 and 82.6 (83.2)
GeV/c2 are derived
for the masses of the neutral Higgs bosons
h and
A, respectively.
An update of the general MSSM parameter scan is also
presented.
Copyright Società Italiana di Fisica, Springer-Verlag 2000
