Skip to main navigation Skip to search Skip to main content

Search for lepton-flavor violation in e+p collisions at DESY HERA

  • S. Chekanov
  • , M. Derrick
  • , D. Krakauer
  • , S. Magill
  • , B. Musgrave
  • , A. Pellegrino
  • , J. Repond
  • , R. Yoshida
  • , M. C.K. Mattingly
  • , P. Antonioli
  • , G. Bari
  • , M. Basile
  • , L. Bellagamba
  • , D. Boscherini
  • , A. Bruni
  • , G. Bruni
  • , G. Cara Romeo
  • , L. Cifarelli
  • , F. Cindolo
  • , A. Contin
  • M. Corradi, S. de Pasquale, P. Giusti, G. Iacobucci, G. Levi, A. Margotti, T. Massam, R. Nania, F. Palmonari, A. Pesci, G. Sartorelli, A. Zichichi, G. Aghuzumtsyan, D. Bartsch, I. Brock, J. Crittenden, S. Goers, H. Hartmann, E. Hilger, P. Irrgang, H. P. Jakob, A. Kappes, U. F. Katz, R. Kerger, O. Kind, E. Paul, J. Rautenberg, R. Renner, H. Schnurbusch, A. Stifutkin, J. Tandler, K. C. Voss, A. Weber, H. Wessoleck, D. S. Bailey, N. H. Brook, J. E. Cole, B. Foster, G. P. Heath, H. F. Heath, S. Robins, E. Rodrigues, J. Scott, R. J. Tapper, M. Wing, M. Capua, A. Mastroberardino, M. Schioppa, G. Susinno, H. Y. Jeoung, J. Y. Kim, J. H. Lee, I. T. Lim, K. J. Ma, M. Y. Pac, A. Caldwell, M. Helbich, X. Liu, B. Mellado, S. Paganis, W. B. Schmidke, F. Sciulli, J. Chwastowski, A. Eskreys, J. Figiel, K. Olkiewicz, M. B. Przybycień, P. Stopa, L. Zawiejski, B. Bednarek, I. Grabowska-Bold, K. Jeleń, D. Kisielewska, A. M. Kowal, M. Kowal, T. Kowalski, B. Mindur, E. Rulikowska-Zarebska, L. Suszycki, D. Szuba, J. Szuba, A. Kotański, W. Slomiński, L. A.T. Bauerdick, U. Behrens, K. Borras, V. Chiochia, D. Dannheim, K. Desler, G. Drews, J. Fourletova, A. Fox-Murphy, U. Fricke, A. Geiser, F. Goebel, P. Göttlicher, R. Graciani, T. Haas, W. Hain, G. F. Hartner, S. Hillert, U. Kötz, H. Kowalski, H. Labes, D. Lelas, B. Löhr, R. Mankel, J. Martens, M. Martínez, M. Moritz, D. Notz, M. C. Petrucci, A. Polini, U. Schneekloth, F. Selonke, S. Stonjek, B. Surrow, J. J. Whitmore, R. Wichmann, G. Wolf, C. Youngman, W. Zeuner, C. Coldewey, A. Lopez-Duran Viani, A. Meyer, S. Schlenstedt, G. Barbagli, E. Gallo, C. Genta, P. G. Pelfer, A. Bamberger, A. Benen, N. Coppola, P. Markun, H. Raach, S. Wölfle, M. Bell, P. J. Bussey, A. T. Doyle, C. Glasman, S. Hanlon, S. W. Lee, A. Lupi, G. J. McCance, D. H. Saxon, I. O. Skillicorn, B. Bodmann, U. Holm, H. Salehi, K. Wick, A. Ziegler, Ar Ziegler, T. Carli, I. Gialas, K. Klimek, E. Lohrmann, M. Milite, C. Collins-Tooth, C. Foudas, R. Gonçalo, K. R. Long, F. Metlica, D. B. Miller, A. D. Tapper, R. Walker, P. Cloth, D. Filges, M. Kuze, K. Nagano, K. Tokushuku, S. Yamada, Y. Yamazaki, A. N. Barakbaev, E. G. Boos, N. S. Pokrovskiy, B. O. Zhautykov, S. H. Ahn, S. B. Lee, S. K. Park, H. Lim, D. Son, F. Barreiro, G. García, O. González, L. Labarga, J. del Peso, I. Redondo, J. Terrón, M. Vázquez, M. Barbi, A. Bertolin, F. Corriveau, A. Ochs, S. Padhi, D. G. Stairs, M. St-Laurent, T. Tsurugai, A. Antonov, V. Bashkirov, P. Danilov, B. A. Dolgoshein, D. Gladkov, V. Sosnovtsev, S. Suchkov, R. K. Dementiev, P. F. Ermolov, Yu A. Golubkov, I. I. Katkov, L. A. Khein, N. A. Korotkova, I. A. Korzhavina, V. A. Kuzmin, B. B. Levchenko, O. Y. Lukina, A. S. Proskuryakov, L. M. Shcheglova, A. N. Solomin, N. N. Vlasov, S. A. Zotkin, C. Bokel, J. Engelen, S. Grijpink, E. Koffeman, P. Kooijman, E. Maddox, S. Schagen, E. Tassi, H. Tiecke, N. Tuning, J. J. Velthuis, L. Wiggers, E. de Wolf, N. Brümmer, B. Bylsma, L. S. Durkin, J. Gilmore, C. M. Ginsburg, C. L. Kim, T. Y. Ling, S. Boogert, A. M. Cooper-Sarkar, R. C.E. Devenish, J. Ferrando, T. Matsushita, M. Rigby, O. Ruske, M. R. Sutton, R. Walczak, R. Brugnera, R. Carlin, F. Dal Corso, S. Dusini, A. Garfagnini, S. Limentani, A. Longhin, A. Parenti, M. Posocco, L. Stanco, M. Turcato, L. Adamczyk, B. Y. Oh, P. R.B. Saull, Y. Iga, G. D'Agostini, G. Marini, A. Nigro, C. Cormack, J. C. Hart, N. A. McCubbin, C. Heusch, I. H. Park, N. Pavel, H. Abramowicz, S. Dagan, A. Gabareen, S. Kananov, A. Kreisel, A. Levy, T. Abe, T. Fusayasu, T. Kohno, K. Umemori, T. Yamashita, R. Hamatsu, T. Hirose, M. Inuzuka, S. Kitamura, K. Matsuzawa, T. Nishimura, M. Arneodo, N. Cartiglia, R. Cirio, M. Costa, M. I. Ferrero, S. Maselli, V. Monaco, C. Peroni, M. Ruspa, R. Sacchi, A. Solano, A. Staiano, R. Galea, T. Koop, G. M. Levman, J. F. Martin, A. Mirea, A. Sabetfakhri, J. M. Butterworth, C. Gwenlan, R. Hall-Wilton, M. E. Hayes, E. A. Heaphy, T. W. Jones, J. B. Lane, M. S. Lightwood, B. J. West, J. Ciborowski, R. Ciesielski, G. Grzelak, R. J. Nowak, J. M. Pawlak, B. Smalska, J. Sztuk, T. Tymieniecka, A. Ukleja, J. Ukleja, J. A. Zakrzewski, A. F. Zarnecki, M. Adamus, P. Plucinski, Y. Eisenberg, L. K. Gladilin, D. Hochman, U. Karshon, J. Breitweg, D. Chapin, R. Cross, D. Kçira, S. Lammers, D. D. Reeder, A. A. Savin, W. H. Smith, A. Deshpande, S. Dhawan, V. W. Hughes, P. B. Straub, S. Bhadra, C. D. Catterall, S. Fourletov, S. Menary, M. Soares, J. Standage
  • Argonne National Laboratory
  • Andrews University
  • National Institute for Nuclear Physics
  • University of Bonn
  • Cornell University
  • University of Bristol
  • University of Calabria
  • Chonnam National University
  • Dongshin University
  • Columbia University
  • Institute of Nuclear Physics
  • AGH University of Krakow
  • Northwestern University
  • Jagiellonian University in Kraków
  • German Electron Synchrotron
  • Fermi National Accelerator Laboratory
  • Koninklijke Philips N.V.
  • Brookhaven National Laboratory
  • Mobilcom AG
  • GFN Training GmbH
  • University of Florence
  • University of Freiburg
  • University of Glasgow
  • University of Hamburg
  • University of the Aegean
  • Imperial College London
  • Jülich Research Centre
  • High Energy Accelerator Research Organization, Institute of Particle and Nuclear Physics
  • The University of Tokyo
  • Satbayev University
  • Korea University
  • Kyungpook National University
  • Universidad Autónoma de Madrid
  • McGill University
  • Meiji Gakuin University
  • Moscow Engineering Physics Institute
  • Loma Linda University Health
  • Lomonosov Moscow State University
  • University of Amsterdam
  • Ohio State University
  • University of Oxford
  • IBM
  • University of Padua
  • Pennsylvania State University
  • Polytechnic University Japan
  • University of Rome La Sapienza
  • STFC Rutherford Appleton Laboratory
  • University of California at Santa Cruz
  • Seoul National University
  • University of Siegen
  • Tel Aviv University
  • Tokyo Metropolitan University
  • University of Turin
  • University of Eastern Piedmont
  • University of Toronto
  • University College London
  • CERN
  • University of Warsaw
  • University of Lodz
  • Institute of Nuclear Chemistry and Technology, Warsaw
  • Weizmann Institute of Science
  • University of Wisconsin-Madison
  • EssNet Deutschland GmbH
  • Yale University
  • York University Toronto

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

A search has been made for lepton-flavor-violating interactions of the type e+p→lX, where l denotes a μ or τ with high transverse momentum, at a center-of-mass energy √s of 300 GeV with an integrated luminosity of 47.7 pb-1 using the ZEUS detector at HERA. No evidence was found for lepton-flavor violation and constraints were derived on leptoquarks (LQs) that could mediate such interactions. For LQ masses below √s, limits are set on λeq1βlq, where λeq1 is the coupling of the LQ to an electron and a first-generation quark q1 and βlq is the branching ration of the LQ to l and a quark. For LQ masses exceeding √s, limits are set on the four-fermion contact-interaction term λeqα λlqβ/M2 LQ for leptoquarks that couple to an electron and a quark qα and also to l and a quark qβ. Some of the limits are also applicable to lepton-flavor-violating processes mediated by squarks in R-parity-violating supersymmetric models. In some cases involving heavy quarks and especially for l=τ, the ZEUS limits are the most stringent published to date.

Original languageEnglish
Article number092004
Pages (from-to)920041-9200416
Number of pages8280376
JournalPhysical Review D
Volume65
Issue number9
DOIs
StatePublished - May 1 2002

Fingerprint

Dive into the research topics of 'Search for lepton-flavor violation in e+p collisions at DESY HERA'. Together they form a unique fingerprint.

Cite this