Loading…

Search for doubly-charged Higgs bosons at LEP

Doubly-charged Higgs bosons are searched for in e+e− collision data collected with the L3 detector at LEP at centre-of-mass energies up to 209 GeV. Final states with four leptons are analysed to tag the pair-production of doubly-charged Higgs bosons. No significant excess is found and lower limits a...

Full description

Saved in:
Bibliographic Details
Published in:Physics letters. B 2003-12, Vol.576 (1-2), p.18-28
Main Authors: Arefiev, A., Bagnaia, P., Banerjee, Sw, Biland, A., Blaising, J.J., Böhm, A., Branson, J.G., Burger, W.J., Capell, M., Cartacci, A., Casaus, J., Cavallari, F., Cavallo, N., Chemarin, M., Chen, H.S., Cifarelli, L., de la Cruz, B., de Asmundis, R., De Salvo, A., Dionisi, C., El Hage, A., Engler, A., Extermann, P., Falciano, S., Fisk, I., Freudenreich, K., Giagu, S., Grimm, O., Gruenewald, M.W., Guida, M., Gupta, V.K., Gutay, L.J., Hatzifotiadou, D., Hervé, A., Hirschfelder, J., Hofer, H., Käfer, D., Kaur, M., Kirkby, J., Ladron de Guevara, P., Lebeau, M., Lecomte, P., Le Goff, J.M., Li, C., Linde, F.L., Lohmann, W., Lu, Y.S., McNeil, R.R., Mele, S., Metzger, W.J., Mohanty, G.B., Muanza, G.S., Musicar, B., Musy, M., Natale, S., Newman, H., Organtini, G., Pauss, F., Pensotti, S., Pierella, F., Prokofiev, D., Raics, P., Ren, D., Rescigno, M., Riemann, S., Roe, B.P., Rosenbleck, C., Roth, S., Rykaczewski, H., Saremi, S., Sanchez, E., Schäfer, C., Schegelsky, V., Schopper, H., Spillantini, P., Steuer, M., Sultanov, G., Sun, L.Z., Tang, X.W., Tauscher, L., Tellili, B., Tully, C., Van de Walle, R.T., Veszpremi, V., Vetlitsky, I., Vlachos, S., Vorobyov, A.A., Wadhwa, M., Wang, Z.M., Weber, M., Wienemann, P., Wynhoff, S., Xia, L., Yamamoto, J., Yang, M., Yeh, S.C., Zalite, An, Zhao, J., Zhu, G.Y., Zhuang, H.L.
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Doubly-charged Higgs bosons are searched for in e+e− collision data collected with the L3 detector at LEP at centre-of-mass energies up to 209 GeV. Final states with four leptons are analysed to tag the pair-production of doubly-charged Higgs bosons. No significant excess is found and lower limits at 95% confidence level on the doubly-charged Higgs boson mass are derived. They vary from 95.5 to 100.2 GeV, depending on the decay mode. Doubly-charged Higgs bosons which couple to electrons would modify the cross section and forward–backward asymmetry of the e+e−→e+e− process. The measurements of these quantities do not deviate from the Standard Model expectations and doubly-charged Higgs bosons with masses up to the order of a TeV are excluded.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2003.09.082