Mass limits of invisibly decaying Higgs particles from the CERN LEP data
1993; American Physical Society; Volume: 48; Issue: 9 Linguagem: Inglês
10.1103/physrevd.48.4224
ISSN1538-4500
AutoresBiswajoy Brahmachari, Anjan S. Joshipura, Saurabh D. Rindani, D. P. Roy, K. Sridhar,
Tópico(s)Cosmology and Gravitation Theories
ResumoIn the Majoron models the SU(2) Higgs doublet can decay invisibly into a Majoron pair via its mixing with a singlet. An analysis of the CERN LEP data shows the invisible decay mode to be more visible than the SM decay. For these models, the dominantly doublet Higgs field $H$ is shown to have a mass limit within \ifmmode\pm\else\textpm\fi{}6 GeV of the SM limit irrespective of the model parameters. But the dominantly singlet one $S$ can be arbitrarily light for a sufficiently small mixing angle.
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