Search for the standard model Higgs boson at the LEP2 collider near √s = 183 GeV

R. Barate, D. Buskulic, D. Decamp, P. Ghez, C. Goy, S. Jezequel, J. P. Lees, A. Lucotte, F. Martin, E. Merle, M. N. Minard, J. Y. Nief, P. Perrodo, B. Pietrzyk, R. Alemany, M. P. Casado, M. Chmeissani, J. M. Crespo, M. Delfino, E. FernandezM. Fernandez-Bosman, Ll Garrido, E. Graugès, A. Juste, M. Martinez, G. Merino, R. Miquel, Ll M. Mir, P. Morawitz, A. Pacheco, I. C. Park, A. Pascual, I. Riu, F. Sanchez, A. Colaleo, D. Creanza, M. De Palma, G. Gelao, G. Iaselli, G. Maggi, M. Maggi, S. Nuzzo, A. Ranieri, G. Raso, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, A. Tricomi, G. Zito, X. Huang, J. Lin, Q. Ouyang, T. Wang, Y. Xie, R. Xu, S. Xue, J. Zhang, L. Zhang, W. Zhao, D. Abbaneo, U. Becker, G. Boix, M. Cattaneo, F. Cerutti, V. Ciulli, G. Dissertori, H. Drevermann, R. W. Forty, M. Frank, F. Gianotti, R. Hagelberg, A. W. Halley, J. B. Hansen, J. Harvey, P. Janot, B. Jost, I. Lehraus, O. Leroy, P. Maley, P. Mato, A. Minten, L. Moneta, A. Moutoussi, F. Ranjard, L. Rolandi, D. Rousseau, D. Schlatter, M. Schmitt, O. Schneider, W. Tejessy, F. Teubert, I. R. Tomalin, I. R. Tomalin, E. Tournefier, M. Vreeswijk, H. Wachsmuth, Z. Ajaltouni, F. Badaud, G. Chazelle

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Abstract

During 1997 the ALEPH experiment at LEP gathered 57 pb-1of data at centre-of-mass energies near 183 GeV. These data are used to look for possible signals from the production of the Standard Model Higgs boson in the reaction e+e-→ HZ. No evidence of a signal is found in the data; seven events are selected, in agreement with the expectation of 7.2 events from background processes. This observation results in an improved lower limit on the mass of the Higgs boson: mH> 87.9 GeV / c2at 95% confidence level. © 1998 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Pages (from-to)403-418
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume440
Issue number3-4
DOIs
Publication statusPublished - 19 Nov 1998

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    Barate, R., Buskulic, D., Decamp, D., Ghez, P., Goy, C., Jezequel, S., Lees, J. P., Lucotte, A., Martin, F., Merle, E., Minard, M. N., Nief, J. Y., Perrodo, P., Pietrzyk, B., Alemany, R., Casado, M. P., Chmeissani, M., Crespo, J. M., Delfino, M., ... Chazelle, G. (1998). Search for the standard model Higgs boson at the LEP2 collider near √s = 183 GeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 440(3-4), 403-418. https://doi.org/10.1016/S0370-2693(98)01239-8