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Search for the neutral Higgs bosons of the Standard Model and the MSSM in $e^{+}e^{-}$ collisions at $\sqrt{s}$ = 189 GeV

Neutral Higgs bosons of the Standard Model and of the \MSSM\ aresearched for in the data collected at a centre-of-mass energy of \cme\,\G\ by the \ALEPH\ experiment at \LEP, with an integrated luminosity of \lumabs\,\invpb. No evidence for a signal is found.A lower limit of \lhSMobs\,\Gcs\ at 95\%~c...

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Detalles Bibliográficos
Autores principales: Barate, R, Décamp, D, Ghez, P, Goy, C, Jézéquel, S, Lees, J P, Martin, F, Merle, E, Minard, M N, Pietrzyk, B, Alemany, R, Bravo, S, Casado, M P, Chmeissani, M, Crespo, J M, Fernández, E, Fernández-Bosman, M, Garrido, L, Graugès-Pous, E, Juste, A, Martínez, M, Merino, G, Miquel, R, Mir, L M, Morawitz, P, Pacheco, A, Riu, I, Ruiz, H, Colaleo, A, Creanza, D, De Palma, M, Iaselli, Giuseppe, Maggi, G, Maggi, M, Nuzzo, S, Ranieri, A, Raso, G, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Tricomi, A, Zito, G, Huang, X, Lin, J, Ouyang, Q, Wang, T, Xie, Y, Xu, R, Xue, S, Zhang, J, Zhang, L, Zhao, W, Abbaneo, D, Boix, G, Buchmüller, O L, Cattaneo, M, Cerutti, F, Davies, G, Dissertori, G, Drevermann, H, Forty, Roger W, Frank, M, Gianotti, F, Greening, T C, Halley, A W, Hansen, J B, Harvey, J, Janot, P, Jost, B, Kado, M, Leroy, O, Maley, P, Mato, P, Minten, Adolf G, Moutoussi, A, Ranjard, F, Rolandi, Luigi, Schlatter, W D, Schmitt, M, Schneider, O, Spagnolo, P, Tejessy, W, Teubert, F, Tournefier, E, Valassi, Andrea, Ward, J J, Wright, A E, Ajaltouni, Ziad J, Badaud, F, Chazelle, G, Deschamps, O, Dessagne, S, Falvard, A, Ferdi, C, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Monteil, S, Montret, J C, Pallin, D, Pascolo, J M, Perret, P, Podlyski, F, Hansen, J D, Hansen, J R, Hansen, P H, Nilsson, B S, Wäänänen, A, Daskalakis, G, Kyriakis, A, Markou, C, Simopoulou, Errietta, Vayaki, Anna, Blondel, A, Brient, J C, Machefert, F P, Rougé, A, Swynghedauw, M, Tanaka, R, Videau, H L, Focardi, E, Parrini, G, Zachariadou, K, Antonelli, A, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, G P, Passalacqua, L, Pepé-Altarelli, M, Chalmers, M, Kennedy, J, Lynch, J G, Negus, P, O'Shea, V, Räven, B, Smith, D, Teixeira-Dias, P, Thompson, A S, Cavanaugh, R J, Dhamotharan, S, Geweniger, C, Hanke, P, Hepp, V, Kluge, E E, Leibenguth, G, Putzer, A, Tittel, K, Werner, S, Wunsch, M, Beuselinck, R, Binnie, David M, Cameron, W, Dornan, Peter J, Girone, M, Goodsir, S M, Marinelli, N, Martin, E B, Nash, J, Nowell, J, Przysiezniak, H, Sciabà, A, Sedgbeer, J K, Thompson, J C, Thomson, E, Williams, M D, Ghete, V M, Girtler, P, Kneringer, E, Kuhn, D, Rudolph, G, Bowdery, C K, Buck, P G, Clarke, D P, Ellis, G, Finch, A J, Foster, F, Hughes, G, Jones, R W L, Robertson, N A, Smizanska, M, Giehl, I, Hölldorfer, F, Jakobs, K, Kleinknecht, K, Kröcker, M, Müller, A S, Nürnberger, H A, Quast, G, Renk, B, Rohne, E, Sander, H G, Schmeling, S, Wachsmuth, H W, Zeitnitz, C, Ziegler, T, Bonissent, A, Carr, J, Coyle, P, Ealet, A, Fouchez, D, Payre, P, Rousseau, D, Tilquin, A, Aleppo, M, Antonelli, M, Gilardoni, S S, Ragusa, F, Büscher, V, Dietl, H, Ganis, G, Hüttmann, K, Lütjens, G, Mannert, C, Männer, W, Moser, H G, Schael, S, Settles, Ronald, Seywerd, H C J, Stenzel, H, Wiedenmann, W, Wolf, G, Azzurri, P, Boucrot, J, Callot, O, Chen, S, Davier, M, Duflot, L, Grivaz, J F, Heusse, P, Jacholkowska, A, Lefrançois, J, Serin, L, Veillet, J J, Videau, I, De Vivie de Régie, J B, Zerwas, D, Bagliesi, G, Boccali, T, Bozzi, C, Calderini, G, Ciulli, V, Dell'Orso, R, Ferrante, I, Giassi, A, Gregorio, A, Ligabue, F, Marrocchesi, P S, Messineo, A, Palla, Fabrizio, Rizzo, G, Sanguinetti, G, Sguazzoni, G, Tenchini, Roberto, Venturi, A, Verdini, P G, Blair, G A, Coles, J, Cowan, G D, Green, M G, Hutchcroft, D E, Jones, L T, Medcalf, T, Strong, J A, Clifft, R W, Edgecock, T R, Norton, P R, Tomalin, I R, Bloch-Devaux, B, Colas, P, Fabbro, B, Faïf, G, Lançon, E, Lemaire, M C, Locci, E, Pérez, P, Rander, J, Renardy, J F, Rosowsky, A, Seager, P, Trabelsi, A, Tuchming, B, Vallage, B, Black, S N, Dann, J H, Loomis, C, Kim, H Y, Konstantinidis, N P, Litke, A M, McNeil, M A, Taylor, G, Booth, C N, Cartwright, S L, Combley, F, Hodgson, P N, Lehto, M H, Thompson, L F, Affholderbach, K, Böhrer, A, Brandt, S, Grupen, Claus, Hess, J, Misiejuk, A, Prange, G, Sieler, U, Borean, C, Giannini, G, Gobbo, B, Pütz, J, Rothberg, J E, Wasserbaech, S R, Williams, R W, Armstrong, S R, Elmer, P, Ferguson, D P S, Gao, Y, González, S, Hayes, O J, Hu, H, Jin, S, Kile, J, McNamara, P A, Nielsen, J, Orejudos, W, Pan, Y B, Saadi, Y, Scott, I J, Walsh, J, Von Wimmersperg-Töller, J H, Wu Sau Lan, Wu, X, Zobernig, G
Lenguaje:eng
Publicado: 2000
Materias:
Acceso en línea:https://dx.doi.org/10.1007/s100520000473
http://cds.cern.ch/record/427616
Descripción
Sumario:Neutral Higgs bosons of the Standard Model and of the \MSSM\ aresearched for in the data collected at a centre-of-mass energy of \cme\,\G\ by the \ALEPH\ experiment at \LEP, with an integrated luminosity of \lumabs\,\invpb. No evidence for a signal is found.A lower limit of \lhSMobs\,\Gcs\ at 95\%~confidence level is set on the mass of the Standard Model Higgs boson.In the \MSSM, for $\tanb \ge 0.7$ and for benchmark parameter choices, lower limits of \lhobs\,\Gcs\ and 82.6\,\Gcs\ are derived for the masses of the neutral Higgs bosons \h\ and \A, respectively.An update of the general \MSSM\ parameter scan is alsopresented.