Final results of the searches for neutral Higgs bosons in $e^{+}e^{-}$ collisions at $\sqrt{s}$ up to 209 GeV

• Published in: Physics letters. B Vol. 526; pp. 191 - 205
• Main Authors: Heister, A., Schael, S., Barate, R., Bruneliere, R., de Bonis, I., Decamp, D., Goy, C., Jezequel, S., Lees, J P., Martin, F., Merle, E., Minard, M N., Pietrzyk, B., Trocme, B., Boix, G., Bravo, S., Casado, M P., Chmeissani, M., Crespo, J M., Fernandez, E., Fernandez-Bosman, M., Garrido, L., Lopez, J., Martinez, M., Merino, G., Miquel, R., Mir, L M., Pacheco, A., Paneque, D., Ruiz, H., Colaleo, A., Creanza, D., de Filippis, N., De, Palma, Iaselli, G., Maggi, G., Maggi, M., Nuzzo, S., Ranieri, A., Raso, G., Ruggieri, F., Selvaggi, G., Silvestris, L., Tempesta, P., Tricomi, A., Zito, G., Lin, Jiali, Ouyang, Q., Wang, T., Xie, Y., Xu, R., Xue, S., Zhang, J., Zhang, L., Zhao, W., Abbaneo, D., Azzurri, P., Barklow, T., Buchmuller, O., Cattaneo, M., Cerutti, F., Clerbaux, B., Drevermann, H., Forty, R W., Frank, M., Gianotti, F., Greening, T C., Hansen, J B., Harvey, J., Hutchcroft, D E., Janot, P., Jost, B., Kado, M., Maley, P., Mato, P., Moutoussi, A., Ranjard, F., Rolandi, L., Schlatter, D., Sguazzoni, G., Tejessy, W., Teubert, F., Videau, I., Ward, J J., Badaud, F., Dessagne, S., Falvard, Alain, Fayolle, D., Gay, Pascal, Jousset, J., Michel, B., Monteil, S., Pallin, D., Pascolo, J M., Perret, Pascal, Hansen, J D., Hansen, J R., Hansen, P H., Nilsson, B S., Waananen, A.
• Format: Journal Article
• Language: English
• Published: Elsevier 2002
• Subjects: High Energy Physics - Experiment; Physics
• ISSN: 0370-2693

The final results of the ALEPH search for the Standard Model Higgs boson at LEP, with data collected in the year 2000 at centre-of-mass energies up to 209,GeV, are presented. The changes with respect to the preceding publication are described and a complete study of systematic effects is reported. The findings of this final analysis confirm the preliminary results published in November 2000 shortly after the closing down of the LEP collider: a significant excess of events is observed, consistent with the production of a $115, Gcs$ Standard Model Higgs boson.% The final results of the searches for the neutral Higgs bosons of the MSSM are also reported, in terms of limits on $mh$, $mA$ and $anb$.% Limits are also set on $mh$ in the case of invisible decays.