Search for light neutral Higgs particles produced in Z 0-decays

A search for the neutral Higgs boson in Z 0-decays has been performed using the DELPHI detector at the large Electron Positron collider (LEP) at CERN. We looked for the decay of Z 0 into a neutral Higgs particle and a pair of fermions. No events fulfilled the criteria for H 0-production. Our results...

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Published in:Nuclear physics. B 1990, Vol.342 (1), p.1-14
Main Authors: Almehed, S., Alvsvaag, S.J., Amaldi, U., Apel, W.D., Astor Ferreres, C., Beltran, P., Bloch, D., Bouquet, B., Bozzo, M., Braibant, S., Branchini, P., Brown, R.C.A., Caccia, M., Campion, A., Charpentier, P., Cosme, G., Crennell, D., Crosland, N., Darbo, G., De Beer, M., De Boeck, H., De Clercq, C., De Fez Laso, M.D.M., De Groot, N., De La Vaissiere, C., Diddens, A.N., Djama, F., Dolbeau, J., Dracos, M., Eerola, P.A.M., Fenyuk, A., Franek, B., Fruhwirth, R., Fulda-Quenzer, F., Fuerstenau, H., Gago, J.M., Gasparini, U., Giacomelli, P., Gopal, G., Grard, F., Graziani, E., Hajduk, Z., Hakansson, A., Hamel De Monchenault, G., Harris, J.F., Holmes, R., Hrubec, J., Hulth, P.O., Iversen, P.S., Juillot, P., Kalmus, G., Kapusta, F., Keranen, R., Kokkinias, P., Korcyl, K., Kruener-Marquis, U., Kurpinski, W., Kucewicz, W., Kurvinen, K., Laakson, M.I., Lanceri, L., Lemonne, J., Lucock, R., Mandl, F., Matthiae, G., Moa, T., Moenig, K., Navarria, F.L., Orava, R., Papadopoulou, T., Pape, L., Perevozchikov, V., Pol, M.E., Ragazzi, S., Ratoff, P.N., Rinaudo, G., Ronchese, P., Ruiz, A., Sannino, M., Schneider, H., Scuri, F., Seufert, R., Siegrist, P., Sosnowski, R., Spang, K., Szeptycka, M., Szymanski, P., Trevisan, U., Tristram, G., Tzamarias, S., Van Dam, P., Van Doninck, W.K., Veitch, M.E., Weilhammer, P., Zaitsev, A., Zalewska, A., Zalewski, P., Zhang, G., Zukanovich Funchal, R., Zuniga, J.
Format: Article
Language:English
Subjects:
High Energy Physics - Experiment
Physics
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Summary:A search for the neutral Higgs boson in Z 0-decays has been performed using the DELPHI detector at the large Electron Positron collider (LEP) at CERN. We looked for the decay of Z 0 into a neutral Higgs particle and a pair of fermions. No events fulfilled the criteria for H 0-production. Our results, which are based on an integrated luminosity of 530 nb −1, exclude a minimal Standard Model Higgs boson with a mass in the range 210 MeV/c 2 to 14 GeV/c 2 at 95% confidence level.
ISSN:0550-3213
1873-1562
DOI:10.1016/0550-3213(90)90569-Y