Search For Neutral Higgs Bosons From Supersymmetry In Z-Decays

D. Decamp,B. Deschizeaux, J.-P. Lees,M.-N. Minard,J.M. Crespo,M. Delfino,E. Fernandez,M. Martinez,R. Miquel,Ll.M. Mir,S. Orteu,A. Pacheco,J.A. Perlas,E. Tubau,M.G. Catanesi,M. De Palma, A. Farilla,G. Iaselli, G. Maggi,S. Natali,S. Nuzzo,A. Ranieri,G. Raso, F. Romano,F. Ruggieri,G. Selvaggi,L. Silvestris,P. Tempesta, G. Zito,H. Hu,D. Huang,J. Lin,T. Ruan, T. Wang,W. Wu,Y. Xie,D. Xu, R. Xu,J. Zhang,W. Zhao,H. Albrecht, W.B. Atwood,F. Bird,E. Blucher,T.H. Burnett,T. Charity, H. Drevermann, Ll. Garrido,C. Grab,R. Hagelberg,S. Haywood, B. Jost,M. Kasemann,G. Kellner,J. Knobloch,A. Lacourt,I. Lehraus, T. Lohse,D. Lüke,A. Marchioro,P. Mato,J. May,A. Minten,A. Miotto,P. Palazzi,M. Pepe-Altarelli,F. Ranjard,A. Roth, J. Rothberg,H. Rotscheidt,W. von Rüden,R. St.Denis,D. Schlatter,M. Takashima,M. Talby,H. Taureg,W. Tejessy,H. Wachsmuth,S. Wheeler,W. Wiedenmann,W. Witzeling, J. Wotschack, Z. Ajaltouni,M. Bardadin-Otwinowska,A. Falvard, P. Gay, P. Henrard,J. Jousset,B. Michel,J-C. Montret, D. Pallin, P. Perret,J. Proriol,F. Prulhière,J.D. Hansen,J.R. Hansen,P.H. Hansen,R. Møllerud,G. Petersen,E. Simopoulou,A. Vayaki,J. Badier, A. Blondel,G. Bonneaud,J. Bourotte,F. Braems,J.C. Brient,M.A. Ciocci,G. Fouque,R. Guirlet,A. Rougé,M. Rumpf, R. Tanaka,H. Videau, I. Videau,D.J. Candlin,A. Conti,G. Parrini,M. Corden,C. Georgiopoulos,J.H. Goldman,M. Ikeda,J. Lannutti,D. Levinthal,M. Mermikides,L. Sawyer,G. Stimpfl,A. Antonelli,R. Baldini, G. Bencivenni,G. Bologna,F. Bossi, P. Campana,G. Capon,V. Chiarella,G. De Ninno,B. D'Ettorre-Piazzoli,G. Felici, P. Laurelli,G. Mannocchi,F. Murtas,G.P. Murtas,G. Nicoletti,P. Picchi,P. Zografou,B. Altoon,O. Boyle,A.W. Halley,I. Ten Have, J.L. Hearns,I.S. Hughes,J.G. Lynch, W.T. Morton,C. Raine,J.M. Scarr,K. Smith, A.S. Thompson,B. Brandl,O. Braun,R. Geiges, C. Geweniger, P. Hanke,V. Hepp,E.E. Kluge,Y. Maumary,M. Panter,A. Putzer,B. Rensch,A. Stahl,K. Tittel,M. Wunsch,A.T. Belk,R. Beuselinck, D.M. Binnie,W. Cameron,M. Cattaneo, P.J. Dornan,S. Dugeay,R.W. Forty,A.M. Greene,J.F. Hassard,S.J. Patton,J.K. Sedgbeer,G. Taylor,I.R. Tomalin,A.G. Wright,P. Girtler, D. Kuhn, G. Rudolph,C.K. Bowdery,T.J. Brodbeck,A.J. Finch,F. Foster, G. Hughes,N.R. Keemer,M. Nuttall,B.S. Rowlingson, T. Sloan,S.W. Snow,T. Barczewski,L.A.T. Bauerdick, K. Kleinknecht,B. Renk,S. Roehn, H.-G. Sander, M. Schmelling,F. Steeg,J.-P. Albanese, J.-J. Aubert, C. Benchouk,A. Bonissent,D. Courvoisier, F. Etienne,E. Matsinos,S. Papalexiou,P. Payre, B. Pietrzyk,Z. Qian, W. Blum,P. Cattaneo,G. Cowan,B. Dehning,H. Dietl,M. Fernandez-Bosman,D. Hauff,A. Jahn,E. Lange,G. Lütjens, G. Lutz,W. Männer, H.-G. Moser, Y. Pan,R. Richter, A.S. Schwarz,R. Settles,U. Stiegler,U. Stierlin,J. Thomas,G. Waltermann,V. Bertin,G. De Bouard,J. Boucrot, O. Callot,X. Chen,A. Cordier, M. Davier,G. Ganis,J.-F. Grivaz,Ph. Heusse, P. Janot, V. Journé,D.W. Kim,J. Lefrançois,A.-M. Lutz,J.-J. Veillet,F. Zomer,S.R. Amendolia, G. Bagliesi,G. Batignani,L. Bosisio,U. Bottigli,C. Bradaschia,I. Ferrante,F. Fidecaro,L. Foà,E. Focardi,F. Forti, A. Giassi,M.A. Giorgi,F. Ligabue,A. Lusiani,E.B. Mannelli,P.S. Marrocchesi, A. Messineo, F. Palla,G. Sanguinetti,S. Scapellato,J. Steinberger, R. Tenchini,G. Tonelli,G. Triggiani,J.M. Carter, M.G. Green,P.V. March,T. Medcalf,M.R. Saich, J.A. Strong,R.M. Thomas,T. Wildish,D.R. Botterill, R.W. Clifft,T.R. Edgecock,M. Edwards,S.M. Fisher,J. Harvey,T.J. Jones,P.R. Norton,D.P. Salmon,J.C. Thompson,E. Aubourg,B. Bloch-Devaux,P. Colas,C. Klopfenstein,E. Lançon, E. Locci,S. Loucatos, L. Mirabito, E. Monnier,P. Perez,F. Perrier, J. Rander,J.-F. Renardy,A. Roussarie,J.-P. Schuller,J.G. Ashman,C.N. Booth,F. Combley,M. Dinsdale,J. Martin,D. Parker,L.F. Thompson,S. Brandt,H. Burkhardt, C. Grupen,H. Meinhard,E. Neugebauer,U. Schäfer,H. Seywerd,B. Gobbo,F. Liello,E. Milotti, F. Ragusa,L. Rolandi, L. Bellantoni,J.F. Boudreau,D. Cinabro,J.S. Conway,D.F. Cowen,Z. Feng,J.L. Harton,J. Hilgart,R.C. Jared,R.P. Johnson, B.W. Leclaire, Y.B. Pan,T. Parker, J.R. Pater,Y. Saadi, V. Sharma,J.A. Wear,F.V. Weber,Sau Lan Wu, S.T. Xue, G. Zobernig

PHYSICS LETTERS B（1990）

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摘要

The light scalar Higgs boson h and the pseudoscalar Higgs boson A of the minimal supersymmetric standard model have been searched for in the processes e + e − → hf f and e + e − →hA using data collected by ALEPH at the LEP e + e − collider, with center of mass energies at and near the Z peak. Using a variety of signatures adapted to various mass ranges for h and A, we have excluded a large domain in the parameter space. For large values of ν 2 ν 1 , the ratio of the vacuum expectation values of the two Higgs fields, the whole range from 0 to 38.8 GeV is excluded for M h and M A at 95% CL.

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particle physics,higgs boson

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