# Search for an invisibly decaying Higgs boson in $e^+ e^-$ collisions at $\sqrt{s}$ = 183-189 GeV

3 CMS
IP2I Lyon - Institut de Physique des 2 Infinis de Lyon
Abstract : A search for a Higgs boson decaying into invisible particles is performed using the datacollected at LEP by the L3 experiment at centre-of-mass energies of$183\gev{}$ and $189\gev{}$. The integrated luminosities are respectively 55.3~\pb{} and 176.4~\pb{}.The observed candidates are consistent with the expectations from StandardModel processes.In the hypothesis that the production cross section of this Higgs bosonequals the Standard Model one and the branching ratio into invisibleparticles is $100\%$, a lower masslimit of $89.2\gev{}$ is set at $95\%$ confidence level.
Document type :
Journal articles

Cited literature [15 references]

http://hal.in2p3.fr/in2p3-00005342
Contributor : Sylvie Flores <>
Submitted on : Monday, July 24, 2000 - 12:11:14 PM
Last modification on : Friday, December 4, 2020 - 1:22:16 PM
Long-term archiving on: : Monday, June 21, 2010 - 2:45:13 PM

### Identifiers

• HAL Id : in2p3-00005342, version 1

### Citation

M. Acciarri, P. Achard, O. Adriani, M. Aguilar-Benitez, J. Alcaraz, et al.. Search for an invisibly decaying Higgs boson in $e^+ e^-$ collisions at $\sqrt{s}$ = 183-189 GeV. Physics Letters B, Elsevier, 2000, 485, pp.85-94. ⟨in2p3-00005342⟩

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