CERN Accelerating science

Article
Report number hep-ex/0008004 ; CERN-EP-2000-083
Title Search for $\gamma\gamma$ decays of a Higgs boson produced in association with a fermion pair in $e^{+} e^{-}$ collisions at LEP
Author(s)

Barate, R. (Annecy, LAPP) ; Decamp, D. (Annecy, LAPP) ; Ghez, Philippe (Annecy, LAPP) ; Goy, C. (Annecy, LAPP) ; Jezequel, S. (Annecy, LAPP) ; Lees, J.P. (Annecy, LAPP) ; Martin, F. (Annecy, LAPP) ; Merle, E. (Annecy, LAPP) ; Minard, M.N. (Annecy, LAPP) ; Pietrzyk, B. (Annecy, LAPP) ; Bravo, S. (Barcelona, Autonoma U.) ; Casado, M.P. (Barcelona, Autonoma U.) ; Chmeissani, M. (Barcelona, Autonoma U.) ; Crespo, J.M. (Barcelona, Autonoma U.) ; Fernandez, E. (Barcelona, Autonoma U.) ; Fernandez-Bosman, M. (Barcelona, Autonoma U.) ; Garrido, L. (Barcelona, Autonoma U.) ; Grauges, E. (Barcelona, Autonoma U.) ; Lopez, J. (Barcelona, Autonoma U.) ; Martinez, M. (Barcelona, Autonoma U.) ; Merino, G. (Barcelona, Autonoma U.) ; Miquel, R. (Barcelona, Autonoma U.) ; Mir, L.M. (Barcelona, Autonoma U.) ; Pacheco, A. (Barcelona, Autonoma U.) ; Paneque, D. (Barcelona, Autonoma U.) ; Ruiz, H. (Barcelona, Autonoma U.) ; Colaleo, A. (INFN, Bari) ; Creanza, D. (INFN, Bari) ; De Filippis, N. (INFN, Bari) ; De Palma, M. (INFN, Bari) ; Iaselli, G. (INFN, Bari) ; Maggi, G. (INFN, Bari) ; Maggi, M. (INFN, Bari) ; Nuzzo, S. (INFN, Bari) ; Ranieri, A. (INFN, Bari) ; Raso, G. (INFN, Bari) ; Ruggieri, F. (INFN, Bari) ; Selvaggi, G. (INFN, Bari) ; Silvestris, L. (INFN, Bari) ; Tempesta, P. (INFN, Bari) ; Tricomi, A. (INFN, Bari ; Catania U. ; INFN, Catania) ; Zito, G. (INFN, Bari) ; Huang, X. (Beijing, Inst. High Energy Phys.) ; Lin, J. (Beijing, Inst. High Energy Phys.) ; Ouyang, Q. (Beijing, Inst. High Energy Phys.) ; Wang, T. (Beijing, Inst. High Energy Phys.) ; Xie, Y. (Beijing, Inst. High Energy Phys.) ; Xu, R. (Beijing, Inst. High Energy Phys.) ; Xue, S. (Beijing, Inst. High Energy Phys.) ; Zhang, J. (Beijing, Inst. High Energy Phys.) ; Zhang, L. (Beijing, Inst. High Energy Phys.) ; Zhao, W. (Beijing, Inst. High Energy Phys.) ; Abbaneo, D. (CERN) ; Boix, G. (CERN) ; Buchmuller, O. (CERN) ; Cattaneo, M. (CERN) ; Cerutti, F. (CERN) ; Dissertori, G. (CERN) ; Drevermann, H. (CERN) ; Forty, R.W. (CERN) ; Frank, M. (CERN) ; Gianotti, F. (CERN) ; Greening, T.C. (CERN) ; Halley, A.W. (CERN) ; Hansen, J.B. (CERN) ; Harvey, John (CERN) ; Janot, P. (CERN) ; Jost, B. (CERN) ; Kado, M. (CERN) ; Lemaitre, V. (CERN) ; Maley, P. (CERN) ; Mato, P. (CERN) ; Minten, A. (CERN) ; Moutoussi, A. (CERN) ; Ranjard, F. (CERN) ; Rolandi, Gigi (CERN) ; Schlatter, D. (CERN) ; Schmitt, M. (CERN) ; Schneider, O. (CERN) ; Spagnolo, P. (CERN) ; Tejessy, W. (CERN) ; Teubert, F. (CERN) ; Tournefier, E. (CERN) ; Valassi, A. (CERN) ; Ward, J.J. (CERN) ; Wright, A.E. (CERN) ; Ajaltouni, Z. (Clermont-Ferrand U.) ; Badaud, F. (Clermont-Ferrand U.) ; Chazelle, G. (Clermont-Ferrand U.) ; Deschamps, O. (Clermont-Ferrand U.) ; Dessagne, S. (Clermont-Ferrand U.) ; Falvard, A. (Clermont-Ferrand U.) ; Gay, P. (Clermont-Ferrand U.) ; Guicheney, C. (Clermont-Ferrand U.) ; Henrard, P. (Clermont-Ferrand U.) ; Jousset, J. (Clermont-Ferrand U.) ; Michel, B. (Clermont-Ferrand U.) ; Monteil, S. (Clermont-Ferrand U.) ; Montret, J.C. (Clermont-Ferrand U.) ; Pallin, D. (Clermont-Ferrand U.) ; Pascolo, J.M. (Clermont-Ferrand U.) ; Perret, P. (Clermont-Ferrand U.) ; Podlyski, F. (Clermont-Ferrand U.) ; Hansen, J.D. (Bohr Inst.) ; Hansen, J.R. (Bohr Inst.) ; Hansen, P.H. (Bohr Inst. ; CERN) ; Nilsson, B.S. (Bohr Inst.) ; Waananen, A. (Bohr Inst.) ; Daskalakis, G. (Democritos Nucl. Res. Ctr.) ; Kyriakis, A. (Democritos Nucl. Res. Ctr.) ; Markou, C. (Democritos Nucl. Res. Ctr.) ; Simopoulou, E. (Democritos Nucl. Res. Ctr.) ; Vayaki, A. (Democritos Nucl. Res. Ctr.) ; Blondel, A. (Ecole Polytechnique) ; Brient, J.C. (Ecole Polytechnique) ; Machefert, F. (Ecole Polytechnique) ; Rouge, A. (Ecole Polytechnique) ; Swynghedauw, M. (Ecole Polytechnique) ; Tanaka, R. (Ecole Polytechnique) ; Videau, H. (Ecole Polytechnique) ; Focardi, E. (Florence U. ; INFN, Florence) ; Parrini, G. (Florence U. ; INFN, Florence) ; Zachariadou, K. (Florence U. ; INFN, Florence) ; Antonelli, A. (Frascati ; Turin U.) ; Antonelli, M. (Frascati ; Turin U.) ; Bencivenni, G. (Frascati ; Turin U.) ; Bologna, G. (Frascati ; Turin U.) ; Bossi, F. (Frascati ; Turin, Cosmo-Geofisica Lab) ; Campana, P. (Frascati ; Turin, Cosmo-Geofisica Lab) ; Capon, G. (Frascati ; Turin, Cosmo-Geofisica Lab) ; Chiarella, V. (Frascati ; Turin, Cosmo-Geofisica Lab) ; Laurelli, P. (Frascati ; Turin, Cosmo-Geofisica Lab) ; Mannocchi, G. (Frascati ; Turin, Cosmo-Geofisica Lab) ; Murtas, F. (Frascati) ; Murtas, G.P. (Frascati) ; Passalacqua, L. (Frascati) ; Pepe-Altarelli, M. (Frascati) ; Chalmers, M. (Glasgow U.) ; Kennedy, J. (Glasgow U.) ; Lynch, J.G. (Glasgow U.) ; Negus, P. (Glasgow U.) ; O'Shea, V. (Glasgow U.) ; Raeven, B. (Glasgow U.) ; Smith, D. (Glasgow U.) ; Teixeira-Dias, P. (Glasgow U.) ; Thompson, A.S. (Glasgow U.) ; Cavanaugh, R. (Heidelberg U. ; CERN) ; Dhamotharan, S. (Heidelberg U. ; CERN) ; Geweniger, C. (Heidelberg U. ; CERN) ; Hanke, P. (Heidelberg U.) ; Hepp, V. (Heidelberg U.) ; Kluge, E.E. (Heidelberg U.) ; Leibenguth, G. (Heidelberg U.) ; Putzer, A. (Heidelberg U.) ; Tittel, K. (Heidelberg U.) ; Werner, S. (Heidelberg U.) ; Wunsch, M. (Heidelberg U.) ; Beuselinck, R. (Imperial Coll., London ; CERN) ; Binnie, D.M. (Imperial Coll., London ; CERN) ; Cameron, W. (Imperial Coll., London ; CERN) ; Davies, G. (Imperial Coll., London ; CERN) ; Dornan, P.J. (Imperial Coll., London ; CERN) ; Girone, M. (Imperial Coll., London ; CERN) ; Marinelli, N. (Imperial Coll., London ; CERN) ; Nowell, J. (Imperial Coll., London ; CERN) ; Przysiezniak, H. (Imperial Coll., London ; CERN) ; Sedgbeer, J.K. (Imperial Coll., London) ; Thompson, J.C. (Imperial Coll., London ; Rutherford) ; Thomson, Evelyn J. (Imperial Coll., London) ; White, R. (Imperial Coll., London) ; Ghete, V.M. (Innsbruck U.) ; Girtler, P. (Innsbruck U.) ; Kneringer, E. (Innsbruck U.) ; Kuhn, D. (Innsbruck U.) ; Rudolph, G. (Innsbruck U.) ; Bowdery, C.K. (Lancaster U.) ; Buck, P.G. (Lancaster U.) ; Clarke, D.P. (Lancaster U.) ; Ellis, G. (Lancaster U.) ; Finch, A.J. (Lancaster U.) ; Foster, F. (Lancaster U.) ; Hughes, G. (Lancaster U.) ; Jones, R.W.L. (Lancaster U.) ; Robertson, N.A. (Lancaster U.) ; Smizanska, M. (Lancaster U.) ; Giehl, I. (Mainz U., Inst. Phys. ; CERN) ; Holldorfer, F. (Mainz U., Inst. Phys. ; CERN) ; Jakobs, K. (Mainz U., Inst. Phys. ; CERN) ; Kleinknecht, K. (Mainz U., Inst. Phys. ; CERN) ; Krocker, M. (Mainz U., Inst. Phys. ; CERN) ; Muller, A.S. (Mainz U., Inst. Phys. ; CERN) ; Nurnberger, H.A. (Mainz U., Inst. Phys. ; CERN) ; Quast, G. (Mainz U., Inst. Phys. ; CERN) ; Renk, B. (Mainz U., Inst. Phys.) ; Rohne, E. (Mainz U., Inst. Phys.) ; Sander, H.G. (Mainz U., Inst. Phys.) ; Schmeling, S. (Mainz U., Inst. Phys.) ; Wachsmuth, H. (Mainz U., Inst. Phys.) ; Zeitnitz, C. (Mainz U., Inst. Phys.) ; Ziegler, T. (Mainz U., Inst. Phys.) ; Bonissent, A. (Marseille, CPPM) ; Carr, J. (Marseille, CPPM) ; Coyle, P. (Marseille, CPPM) ; Curtil, C. (Marseille, CPPM) ; Ealet, A. (Marseille, CPPM) ; Fouchez, D. (Marseille, CPPM) ; Leroy, O. (Marseille, CPPM) ; Kachelhoffer, T. (Marseille, CPPM) ; Payre, P. (Marseille, CPPM) ; Rousseau, D. (Marseille, CPPM) ; Tilquin, A. (Marseille, CPPM) ; Aleppo, M. (Milan U. ; INFN, Milan) ; Gilardoni, Simone S. (Milan U. ; INFN, Milan) ; Ragusa, F. (Milan U. ; INFN, Milan) ; Dietl, H. (Munich, Max Planck Inst. ; CERN) ; Ganis, G. (Munich, Max Planck Inst. ; CERN) ; Heister, A. (Munich, Max Planck Inst. ; CERN) ; Huttmann, K. (Munich, Max Planck Inst. ; CERN) ; Lutjens, G. (Munich, Max Planck Inst. ; CERN) ; Mannert, C. (Munich, Max Planck Inst. ; CERN) ; Manner, W. (Munich, Max Planck Inst. ; CERN) ; Moser, H.G. (Munich, Max Planck Inst. ; CERN) ; Schael, S. (Munich, Max Planck Inst. ; CERN) ; Settles, R. (Munich, Max Planck Inst. ; CERN) ; Stenzel, H. (Munich, Max Planck Inst.) ; Wiedenmann, W. (Munich, Max Planck Inst.) ; Wolf, G. (Munich, Max Planck Inst.) ; Azzurri, P. (Orsay, LAL ; CERN) ; Boucrot, J. (Orsay, LAL ; CERN) ; Callot, O. (Orsay, LAL ; CERN) ; Davier, M. (Orsay, LAL ; CERN) ; Duflot, L. (Orsay, LAL ; CERN) ; Grivaz, J.F. (Orsay, LAL ; CERN) ; Heusse, P. (Orsay, LAL ; CERN) ; Jacholkowska, A. (Orsay, LAL ; CERN) ; Serin, L. (Orsay, LAL ; CERN) ; Veillet, J.J. (Orsay, LAL ; CERN) ; Videau, I. (Orsay, LAL ; CERN) ; de Vivie de Regie, J.B. (Orsay, LAL) ; Zerwas, D. (Orsay, LAL) ; Bagliesi, Giuseppe ; Boccali, T. ; Calderini, G. ; Ciulli, V. ; Foa, L. ; Giammanco, A. ; Giassi, A. ; Ligabue, F. ; Messineo, A. ; Palla, F. ; Rizzo, G. (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore ; CERN) ; Sanguinetti, G. (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore ; CERN) ; Sciaba, A. (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore ; CERN) ; Sguazzoni, G. (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore ; CERN) ; Tenchini, R. (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore ; CERN) ; Venturi, A. (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore ; CERN) ; Verdini, P.G. (Pisa U. ; INFN, Pisa ; Pisa, Scuola Normale Superiore ; CERN) ; Blair, G.A. (Royal Holloway, U. of London ; Rutherford) ; Coles, J. (Royal Holloway, U. of London ; Rutherford) ; Cowan, G. (Royal Holloway, U. of London ; Rutherford) ; Green, M.G. (Royal Holloway, U. of London ; Rutherford) ; Hutchcroft, D.E. (Royal Holloway, U. of London ; Rutherford) ; Jones, L.T. (Royal Holloway, U. of London ; Rutherford) ; Medcalf, T. (Royal Holloway, U. of London ; Rutherford) ; Strong, J.A. (Royal Holloway, U. of London ; Rutherford) ; von Wimmersperg-Toeller, J.H. (Royal Holloway, U. of London ; Rutherford) ; Clifft, R.W. (Royal Holloway, U. of London ; Rutherford) ; Edgecock, T.R. (Royal Holloway, U. of London ; Rutherford) ; Norton, P.R. (Royal Holloway, U. of London ; Rutherford) ; Tomalin, I.R. (Royal Holloway, U. of London ; Rutherford) ; Bloch-Devaux, Brigitte (DAPNIA, Saclay) ; Boumediene, D. (DAPNIA, Saclay) ; Colas, P. (DAPNIA, Saclay) ; Fabbro, B. (DAPNIA, Saclay) ; Faif, G. (DAPNIA, Saclay) ; Lancon, E. (DAPNIA, Saclay) ; Lemaire, M.C. (DAPNIA, Saclay) ; Locci, E. (DAPNIA, Saclay) ; Perez, P. (DAPNIA, Saclay) ; Rander, J. (DAPNIA, Saclay) ; Renardy, J.F. (DAPNIA, Saclay) ; Rosowsky, A. (DAPNIA, Saclay) ; Seager, P. (DAPNIA, Saclay) ; Trabelsi, A. (DAPNIA, Saclay) ; Tuchming, B. (DAPNIA, Saclay) ; Vallage, B. (DAPNIA, Saclay) ; Black, S.N. (UC, Santa Cruz) ; Dann, J.H. (UC, Santa Cruz) ; Loomis, C. (UC, Santa Cruz) ; Kim, H.Y. (UC, Santa Cruz) ; Konstantinidis, N. (UC, Santa Cruz) ; Litke, A.M. (UC, Santa Cruz) ; McNeil, M.A. (UC, Santa Cruz) ; Taylor, G. (UC, Santa Cruz) ; Booth, C.N. (Sheffield U.) ; Cartwright, S. (Sheffield U.) ; Combley, F. (Sheffield U.) ; Hodgson, P.N. (Sheffield U.) ; Lehto, M. (Sheffield U.) ; Thompson, L.F. (Sheffield U.) ; Affholderbach, K. (Siegen U. ; CERN) ; Boehrer, Armin (Siegen U. ; CERN) ; Brandt, S. (Siegen U. ; CERN) ; Grupen, C. (Siegen U. ; CERN) ; Hess, J. (Siegen U.) ; Misiejuk, A. (Siegen U.) ; Prange, G. (Siegen U.) ; Sieler, U. (Siegen U.) ; Borean, C. (Trieste U. ; INFN, Trieste) ; Giannini, G. (Trieste U. ; INFN, Trieste) ; Gobbo, B. (Trieste U. ; INFN, Trieste) ; He, H. (Washington U., Seattle) ; Putz, J. (Washington U., Seattle) ; Rothberg, J. (Washington U., Seattle) ; Wasserbaech, S. (Washington U., Seattle) ; Armstrong, S.R. (Wisconsin U., Madison) ; Cranmer, K. (Wisconsin U., Madison) ; Elmer, P. (Wisconsin U., Madison) ; Ferguson, D.P.S. (Wisconsin U., Madison) ; Gao, Y. (Wisconsin U., Madison) ; Gonzalez, S. (Wisconsin U., Madison) ; Hayes, O.J. (Wisconsin U., Madison) ; Hu, H. (Wisconsin U., Madison) ; Jin, S. (Wisconsin U., Madison) ; Kile, J. (Wisconsin U., Madison) ; McNamara, P.A. (Wisconsin U., Madison) ; Nielsen, J. (Wisconsin U., Madison) ; Orejudos, W. (Wisconsin U., Madison) ; Pan, Y.B. (Wisconsin U., Madison) ; Saadi, Y. (Wisconsin U., Madison) ; Scott, I.J. (Wisconsin U., Madison) ; Walsh, J. (Wisconsin U., Madison) ; Wu, J. (Wisconsin U., Madison) ; Wu, S.L. (Wisconsin U., Madison) ; Wu, X. (Wisconsin U., Madison) ; Zobernig, G. (Wisconsin U., Madison)

Affiliation (CERN)
Publication 2000
Imprint 29 Jun 2000
Number of pages 16
Series (ALEPH Papers)
Note Comments: 11 pages, 3 figures, ICHEP 2000
11 pages, 3 figures, ICHEP 2000
In: Phys. Lett. B 487 (2000) 241-252
DOI 10.1016/S0370-2693(00)00821-2
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LEP ; ALEPH
Abstract A search for gamma-gamma decays of a Higgs boson is performed in the data sample collected at LEP with the ALEPH detector between 1991 and 1999. This corresponds to an integrated luminosity of 672 pb-1 at centre-of-mass energies ranging from 88 to 202 GeV. The search is based on topologies arising from a Higgs boson produced in association with a fermion pair via the Higgs-strahlung process e+e- -> Hff, with ff=nu\nu, e+e-, mu+mu-, tau+tau- or qq. Twenty-two events are selected in the data, while 28 events are expected from standard model processes. An upper limit is derived, as a function of the Higgs boson mass, on the product of the e+e- -> Hff cross section and the H -> gamma-gamma branching fraction. In particular, a fermiophobic Higgs boson produced with the standard model cross section is excluded at 95% confidence level for all masses below $100.7 GeV.
Copyright/License Elsevier Science B.V.
Preprint: (License: CC-BY-4.0)



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 Записът е създаден на 2000-07-05, последна промяна на 2024-08-24


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arXiv:hep-ex_0008004 - Сваляне на пълен текстPDF
ep-2000-083 - Сваляне на пълен текстPDF
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