A search for the neutral Higgs boson in the processes e(+)e(-) --> Z --> H-0 gamma --> <q(q)over bar gamma> and e(+)e(-) --> Z --> Z*H-0 --> <q(q)over bar gamma gamma> has been performed using 2.8 million hadronic Z decays collected with the L3 detector at LEP from 1991 through 1994. No evidence for these processes has been observed. Upper limits at 95% confidence level for the corresponding cross sections have been set and the results have been compared with theoretical predictions beyond the Standard Model.
Search for new particles in hadronic events with isolated photons
SANTOCCHIA, Attilio;FIANDRINI, Emanuele;BERTUCCI, Bruna;PAULUZZI, Michele
1996
Abstract
A search for the neutral Higgs boson in the processes e(+)e(-) --> Z --> H-0 gamma -->and e(+)e(-) --> Z --> Z*H-0 -->has been performed using 2.8 million hadronic Z decays collected with the L3 detector at LEP from 1991 through 1994. No evidence for these processes has been observed. Upper limits at 95% confidence level for the corresponding cross sections have been set and the results have been compared with theoretical predictions beyond the Standard Model.
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