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Search for doubly-charged Higgs boson production at HERA

  • A. Aktas
  • , V. Andreev
  • , T. Anthonis
  • , B. Antunovic
  • , S. Aplin
  • , A. Asmone
  • , A. Astvatsatourov
  • , A. Babaev
  • , S. Backovic
  • , A. Baghdasaryan
  • , P. Baranov
  • , E. Barrelet
  • , W. Bartel
  • , S. Baudrand
  • , S. Baumgartner
  • , J. Becker
  • , M. Beckingham
  • , O. Behnke
  • , O. Behrendt
  • , A. Belousov
  • N. Berger, J. C. Bizot, M. O. Boenig, V. Boudry, J. Bracinik, G. Brandt, V. Brisson, D. Bruncko, F. W. Büsser, A. Bunyatyan, G. Buschhorn, L. Bystritskaya, A. J. Campbell, F. Cassol-Brunner, K. Cerny, V. Cerny, V. Chekelian, J. G. Contreras, J. A. Coughlan, B. E. Cox, G. Cozzika, J. Cvach, J. B. Dainton, W. D. Dau, K. Daum, Y. de Boer, B. Delcourt, M. Del Degan, A. De Roeck, E. A. De Wolf, C. Diaconu, V. Dodonov, A. Dubak, G. Eckerlin, V. Efremenko, S. Egli, R. Eichler, F. Eisele, A. Eliseev, E. Elsen, S. Essenov, A. Falkewicz, P. J.W. Faulkner, L. Favart, A. Fedotov, R. Felst, J. Feltesse, J. Ferencei, L. Finke, M. Fleischer, G. Flucke, A. Fomenko, G. Franke, T. Frisson, E. Gabathuler, E. Garutti, J. Gayler, C. Gerlich, S. Ghazaryan, S. Ginzburgskaya, A. Glazov, I. Glushkov, L. Goerlich, M. Goettlich, N. Gogitidze, S. Gorbounov, C. Grab, T. Greenshaw, M. Gregori, B. R. Grell, G. Grindhammer, C. Gwilliam, D. Haidt, L. Hajduk, M. Hansson, G. Heinzelmann, R. C.W. Henderson, H. Henschel, G. Herrera, M. Hildebrandt, K. H. Hiller, D. Hoffmann, R. Horisberger, A. Hovhannisyan, T. Hreus, S. Hussain, M. Ibbotson, M. Ismail, M. Jacquet, L. Janauschek, X. Janssen, V. Jemanov, L. Jönsson, D. P. Johnson, A. W. Jung, H. Jung, M. Kapichine, J. Katzy, I. R. Kenyon, C. Kiesling, M. Klein, C. Kleinwort, T. Klimkovich, T. Kluge, G. Knies, A. Knutsson, V. Korbel, P. Kostka, K. Krastev, J. Kretzschmar, A. Kropivnitskaya, K. Krüger, M. P.J. Landon, W. Lange, G. Laštovička-Medin, P. Laycock, A. Lebedev, G. Leibenguth, V. Lendermann, S. Levonian, L. Lindfeld, K. Lipka, A. Liptaj, B. List, J. List, E. Lobodzinska, N. Loktionova, R. Lopez-Fernandez, V. Lubimov, A. I. Lucaci-Timoce, H. Lueders, D. Lüke, T. Lux, L. Lytkin, A. Makankine, N. Malden, E. Malinovski, S. Mangano, P. Marage, R. Marshall, L. Marti, M. Martisikova, H. U. Martyn, S. J. Maxfield, A. Mehta, K. Meier, A. B. Meyer, H. Meyer, J. Meyer, V. Michels, S. Mikocki, I. Milcewicz-Mika, D. Milstead, D. Mladenov, A. Mohamed, F. Moreau, A. Morozov, J. V. Morris, M. U. Mozer, K. Müller, P. Murín, K. Nankov, B. Naroska, Th Naumann, P. R. Newman, C. Niebuhr, A. Nikiforov, G. Nowak, K. Nowak, M. Nozicka, R. Oganezov, B. Olivier, J. E. Olsson, S. Osman, D. Ozerov, V. Palichik, I. Panagoulias, T. Papadopoulou, C. Pascaud, G. D. Patel, H. Peng, E. Perez*, D. Perez-Astudillo, A. Perieanu, A. Petrukhin, D. Pitzl, R. Plačakyte, B. Portheault, B. Povh, P. Prideaux, A. J. Rahmat, N. Raicevic, P. Reimer, A. Rimmer, C. Risler, E. Rizvi, P. Robmann, B. Roland, R. Roosen, A. Rostovtsev, Z. Rurikova, S. Rusakov, F. Salvaire, D. P.C. Sankey, E. Sauvan, S. Schätzel, S. Schmidt, S. Schmitt, C. Schmitz, L. Schoeffel, A. Schöning, H. C. Schultz-Coulon, F. Sefkow, R. N. Shaw-West, I. Sheviakov, L. N. Shtarkov, Y. Sirois, T. Sloan, P. Smirnov, Y. Soloviev, D. South, V. Spaskov, A. Specka, M. Steder, B. Stella, J. Stiewe, A. Stoilov, U. Straumann, D. Sunar, V. Tchoulakov, G. Thompson, P. D. Thompson, T. Toll, F. Tomasz, D. Traynor, P. Truöl, I. Tsakov, G. Tsipolitis, I. Tsurin, J. Turnau, E. Tzamariudaki, K. Urban, M. Urban, A. Usik, D. Utkin, A. Valkárová, C. Vallée, P. Van Mechelen, A. Vargas Trevino, Y. Vazdik, C. Veelken, S. Vinokurova, V. Volchinski, K. Wacker, G. Weber, R. Weber, D. Wegener, C. Werner, M. Wessels, B. Wessling, Ch Wissing, R. Wolf, E. Wünsch, S. Xella, W. Yan, V. Yeganov, J. Žáček, J. Zálešák, Z. Zhang, A. Zhelezov, A. Zhokin, Y. C. Zhu, J. Zimmermann, T. Zimmermann, H. Zohrabyan, F. Zomer
*Corresponding author for this work
  • German Electron Synchrotron
  • RAS - P.N. Lebedev Physics Institute
  • University of Antwerp
  • Max Planck Institute for Physics (Werner Heisenberg Institute)
  • Roma Tre University
  • Alikhanov Institute for Theoretical and Experimental Physics
  • University of Montenegro
  • A. Alikhanian Yerevan Institute of Physics
  • Universités Paris VI
  • CNRS/IN2P3-Univ Mediterranee
  • ETH Zurich—Institute for Particle Physics and Astrophysics (IPA)
  • University of Zurich
  • Heidelberg University 
  • TU Dortmund University
  • Slovak Academy of Sciences
  • University of Hamburg
  • Max Planck Institute for Nuclear Physics
  • CNRS
  • Charles University
  • Comenius University
  • Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
  • Rutherford Appleton Laboratory
  • University of Manchester
  • CEA Saclay
  • Institute of Physics of the Czech Academy of Sciences
  • University of Liverpool
  • Kiel University
  • University of Wuppertal
  • CERN
  • Paul Scherrer Institut
  • Institute for Nuclear Physics
  • University of Birmingham
  • Queen Mary University of London
  • Lund University
  • Lancaster University
  • Pavol Jozef Šafárik University
  • Joint Institute for Nuclear Research
  • RWTH Aachen University
  • Bulgarian Academy of Sciences
  • National Technical University of Athens

Research output: Contribution to journalArticlepeer-review

Abstract

A search for the single production of doubly-charged Higgs bosons H± ± in ep collisions is presented. The signal is searched for via the Higgs decays into a high mass pair of same charge leptons, one of them being an electron. The analysis uses up to 118 pb-1 of ep data collected by the H1 experiment at HERA. No evidence for doubly-charged Higgs production is observed and mass dependent upper limits are derived on the Yukawa couplings he l of the Higgs boson to an electron-lepton pair. Assuming that the doubly-charged Higgs only decays into an electron and a muon via a coupling of electromagnetic strength he μ = sqrt(4 π αem) ≃ 0.3, a lower limit of 141 GeV on the H± ± mass is obtained at the 95% confidence level. For a doubly-charged Higgs decaying only into an electron and a tau and a coupling he τ ≃ 0.3, masses below 112 GeV are ruled out.

Original languageEnglish
Pages (from-to)432-440
Number of pages9
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume638
Issue number5-6
DOIs
Publication statusPublished - 20 Jul 2006
Externally publishedYes

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