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A search for excited neutrinos in e - p collisions at HERA

  • F. D. Aaron
  • , C. Alexa
  • , V. Andreev
  • , B. Antunovic
  • , S. Aplin
  • , A. Asmone
  • , A. Astvatsatourov
  • , S. Backovic
  • , A. Baghdasaryan
  • , P. Baranov
  • , E. Barrelet
  • , W. Bartel
  • , S. Baudrand
  • , M. Beckingham
  • , K. Begzsuren
  • , O. Behnke
  • , A. Belousov
  • , N. Berger
  • , J. C. Bizot
  • , M. O. Boenig
  • V. Boudry, I. Bozovic-Jelisavcic, J. Bracinik, G. Brandt, M. Brinkmann, V. Brisson, D. Bruncko, A. Bunyatyan, G. Buschhorn, L. Bystritskaya, A. J. Campbell, K. B. Cantun Avila, F. Cassol-Brunner, K. Cerny, V. Cerny, V. Chekelian, A. Cholewa, J. G. Contreras, J. A. Coughlan, G. Cozzika, J. Cvach, J. B. Dainton, K. Daum, M. Deák, Y. de Boer, B. Delcourt, M. Del Degan, J. Delvax, A. De Roeck, E. A. De Wolf, C. Diaconu, V. Dodonov, A. Dossanov, A. Dubak, G. Eckerlin, V. Efremenko, S. Egli, F. Eisele, A. Eliseev, E. Elsen, S. Essenov, A. Falkiewicz, P. J.W. Faulkner, L. Favart, A. Fedotov, R. Felst, J. Feltesse, J. Ferencei, L. Finke, M. Fleischer, A. Fomenko, G. Franke, T. Frisson, E. Gabathuler, J. Gayler, S. Ghazaryan, A. Glazov, I. Glushkov, L. Goerlich, M. Goettlich, N. Gogitidze, M. Gouzevitch, C. Grab, T. Greenshaw, B. R. Grell, G. Grindhammer, S. Habib, D. Haidt, M. Hansson, C. Helebrant, R. C.W. Henderson, H. Henschel, G. Herrera, M. Hildebrandt, K. H. Hiller, D. Hoffmann, R. Horisberger, A. Hovhannisyan, T. Hreus, M. Jacquet, M. E. Janssen, 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, A. Knutsson, R. Kogler, V. Korbel, P. Kostka, M. Kraemer, K. Krastev, J. Kretzschmar, A. Kropivnitskaya, K. Krüger, K. Kutak, M. P.J. Landon, W. Lange, G. Laštovička-Medin, P. Laycock, A. Lebedev, G. Leibenguth, V. Lendermann, S. Levonian, G. Li, K. Lipka, A. Liptaj, B. List, J. List, N. Loktionova, R. Lopez-Fernandez, V. Lubimov, A. I. Lucaci-Timoce, L. Lytkin, A. Makankine, E. Malinovski, P. Marage, Ll Marti, H. U. Martyn, S. J. Maxfield, A. Mehta, K. Meier, A. B. Meyer, H. Meyer, H. Meyer, J. Meyer, V. Michels, S. Mikocki, I. Milcewicz-Mika, F. Moreau, A. Morozov, J. V. Morris, M. U. Mozer, M. Mudrinic, K. Müller, P. Murín, K. Nankov, B. Naroska, Th Naumann, P. R. Newman, C. Niebuhr, A. Nikiforov, G. Nowak, K. Nowak, M. Nozicka, B. Olivier, J. E. Olsson, S. Osman, D. Ozerov, V. Palichik, I. Panagoulias, M. Pandurovic, Th Papadopoulou, C. Pascaud, G. D. Patel, O. Pejchal, H. Peng, E. Perez, A. Petrukhin, I. Picuric, S. Piec, D. Pitzl, R. Plačakyte, R. Polifka, B. Povh, T. Preda, V. Radescu, A. J. Rahmat, N. Raicevic, A. Raspiareza, T. Ravdandorj, P. Reimer, C. Risler, E. Rizvi, P. Robmann, B. Roland, R. Roosen, A. Rostovtsev, M. Rotaru, J. E. Ruiz Tabasco, Z. Rurikova, S. Rusakov, D. Salek, F. Salvaire, D. P.C. Sankey, M. Sauter, E. Sauvan, 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, T. Sloan, I. Smiljanic, P. Smirnov, Y. Soloviev, D. South, V. Spaskov, A. Specka, Z. Staykova, M. Steder, B. Stella, U. Straumann, D. Sunar, T. Sykora, V. Tchoulakov, G. Thompson, P. D. Thompson, T. Toll, F. Tomasz, T. H. Tran, D. Traynor, T. N. Trinh, P. Truöl, I. Tsakov, B. Tseepeldorj, I. Tsurin, J. Turnau, E. Tzamariudaki, K. Urban, A. Valkárová, C. Vallée, P. Van Mechelen, A. Vargas Trevino, Y. Vazdik, S. Vinokurova, V. Volchinski, D. Wegener, M. Wessels, Ch Wissing, R. Wolf, E. Wünsch, V. Yeganov, J. Žáček, J. Zálešák, Z. Zhang, A. Zhelezov, A. Zhokin, Y. C. Zhu, T. Zimmermann, H. Zohrabyan, F. Zomer
  • Horia Hulubei National Institute of Physics and Nuclear Engineering
  • P.N. Lebedev Physical Institute of the Russian Academy of Sciences
  • c/o DESY
  • University Roma Tre
  • Inter-University Institute for High Energies ULB-VUB
  • University of Montenegro
  • Yerevan Physics Institute
  • Universités Paris VI and VII
  • Laboratoire de l'Accélérateur Linéaire
  • Institute of Physics and Technology of the Mongolian Academy of Sciences
  • University of Heidelberg
  • ETH Zurich
  • University of Dortmund
  • University of Belgrade
  • Max-Planck-Institut für Physik
  • Institute of Experimental Physics Slovak Academy of Sciences
  • Max-Planck-Institut für Kernphysik
  • Institute for Theoretical and Experimental Physics
  • Dept. Fis. Ap. CINVESTAV
  • Université Paris-Sud
  • Charles University
  • CCLRC Rutherford Appleton Laboratory
  • Institut Pierre Simon Laplace, CNRS and CEA
  • Institute of Physics of the Czech Academy of Sciences
  • University of Liverpool
  • Bergische Universität Gesamthochschule Wuppertal
  • Paul Scherrer Institut
  • Institute for Nuclear Physics
  • University of Birmingham
  • Ip Paris
  • Universität Hamburg
  • Lund University
  • Lancaster University
  • CINVESTAV-IPN
  • Joint Institute for Nuclear Research, Dubna
  • Queen Mary University of London
  • RWTH Aachen University
  • Physik-Institut der Universität Zürich
  • Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)

Abstract

A search for first generation excited neutrinos is performed using the full e - p data sample collected by the H1 experiment at HERA at a centre-of-mass energy of 319 GeV, corresponding to a total luminosity of 184 pb -1. The electroweak decays of excited neutrinos ν * → ν γ, ν * → ν Z and ν * → e W with subsequent hadronic or leptonic decays of the W and Z bosons are considered. No evidence for excited neutrino production is found. Mass dependent exclusion limits on ν * production cross sections and on the ratio of the coupling to the compositeness scale f / Λ are derived within gauge mediated models. A limit on f / Λ, independent of the relative couplings to the SU (2) and U (1) gauge bosons, is also determined. These limits extend the excluded region to higher masses than has been possible in previous excited neutrino searches.

Original languageEnglish
Pages (from-to)382-389
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume663
Issue number5
DOIs
Publication statusPublished - 5 Jun 2008

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