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Leif Jönsson

Leif Jönsson

Professor emeritus

Leif Jönsson

Search for lepton flavour violation at HERA

Author

  • F. D. Aaron
  • C. Alexa
  • V. Andreev
  • S. Backovic
  • A. Baghdasaryan
  • S. Baghdasaryan
  • E. Barrelet
  • W. Bartel
  • K. Begzsuren
  • A. Belousov
  • P. Belov
  • J. C. Bizot
  • V. Boudry
  • I. Bozovic-Jelisavcic
  • J. Bracinik
  • G. Brandt
  • M. Brinkmann
  • V. Brisson
  • D. Britzger
  • D. Bruncko
  • A. Bunyatyan
  • G. Buschhorn
  • L. Bystritskaya
  • A. J. Campbell
  • K. B. Cantun Avila
  • F. Ceccopieri
  • K. Cerny
  • V. Cerny
  • V. Chekelian
  • J. G. Contreras
  • J. A. Coughlan
  • J. Cvach
  • J. B. Dainton
  • K. Daum
  • B. Delcourt
  • J. Delvax
  • E. A. De Wolf
  • C. Diaconu
  • M. Dobre
  • V. Dodonov
  • A. Dossanov
  • A. Dubak
  • G. Eckerlin
  • S. Egli
  • A. Eliseev
  • E. Eisen
  • L. Favart
  • A. Fedotov
  • R. Felst
  • J. Feltesse
  • J. Ferencei
  • D. -J. Fischer
  • M. Fleischer
  • A. Fomenko
  • E. Gabathuler
  • J. Gayler
  • S. Ghazaryan
  • A. Glazov
  • L. Goerlich
  • N. Gogitidze
  • M. Gouzevitch
  • C. Grab
  • A. Grebenyuk
  • T. Greenshaw
  • B. R. Grell
  • G. Grindhammer
  • S. Habib
  • D. Haidt
  • C. Helebrant
  • R. C. W. Henderson
  • E. Hennekemper
  • H. Henschel
  • M. Herbst
  • G. Herrera
  • M. Hildebrandt
  • K. H. Hiller
  • D. Hoffmann
  • R. Horisberger
  • T. Hreus
  • F. Huber
  • M. Jacquet
  • X. Janssen
  • Leif Jönsson
  • H. Jung
  • M. Kapichine
  • I. R. Kenyon
  • C. Kiesling
  • M. Klein
  • C. Kleinwort
  • T. Kluge
  • R. Kogler
  • P. Kostka
  • M. Kraemer
  • J. Kretzschmar
  • K. Krueger
  • M. P. J. Landon
  • W. Lange
  • G. Lastovicka-Medin
  • R. Laycock
  • A. Lebedev
  • V. Lendermann
  • S. Levonian
  • K. Lipka
  • B. List
  • J. List
  • R. Lopez-Fernandez
  • V. Lubimov
  • A. Makankine
  • E. Malinovski
  • P. Marage
  • H. -U. Martyn
  • S. J. Maxfield
  • A. Mehta
  • A. B. Meyer
  • H. Meyer
  • J. Meyer
  • S. Mikocki
  • I. Milcewicz-Mika
  • E. Moreau
  • A. Morozov
  • J. V. Morris
  • M. Mudrinic
  • K. Mueller
  • Th. Naumann
  • P. R. Newman
  • C. Niebuhr
  • D. Nikitin
  • G. Nowak
  • K. Nowak
  • J. E. Olsson
  • Sakar Osman
  • D. Ozerov
  • P. Pahl
  • V. Palichik
  • I. Panagoulias
  • M. Pandurovic
  • Th. Papadopoulou
  • C. Pascaud
  • G. D. Patel
  • E. Perez
  • A. Petrukhin
  • I. Picuric
  • S. Piec
  • H. Pirumov
  • D. Pitzl
  • R. Placakyte
  • B. Pokorny
  • R. Polifka
  • B. Povh
  • V. Radescu
  • N. Raicevic
  • T. Ravdandorj
  • P. Reimer
  • E. Rizvi
  • R. Robmann
  • R. Roosen
  • A. Rostovtsev
  • M. Rotaru
  • J. E. Ruiz Tabasco
  • S. Rusakov
  • D. Salek
  • D. P. C. Sankey
  • M. Sauter
  • E. Sauvan
  • S. Schmitt
  • L. Schoeffel
  • A. Schoening
  • H. -C. Schultz-Coulon
  • E. Sefkow
  • L. N. Shtarkov
  • S. Shushkevich
  • T. Sloan
  • I. Smiljanic
  • Y. Soloviev
  • P. Sopicki
  • D. South
  • V. Spaskov
  • A. Specka
  • Z. Staykova
  • M. Steder
  • B. Stella
  • G. Stoicea
  • U. Straumann
  • T. Sykora
  • P. D. Thompson
  • T. Toll
  • T. H. Tran
  • D. Traynor
  • P. Truoel
  • I. Tsakov
  • B. Tseepeldorj
  • J. Turnau
  • K. Urban
  • A. Valkarova
  • C. Vallee
  • P. Van Mechelen
  • Y. Vazdik
  • M. von den Driesch
  • D. Wegener
  • E. Wuensch
  • J. Zacek
  • J. Zalesak
  • Z. Zhang
  • A. Zhokin
  • H. Zohrabyan
  • E. Zomer

Summary, in English

A search for second and third generation scalar and vector leptoquarks produced in ep collisions via the lepton flavour violating processes ep -> mu X and ep -> tau X is performed by the H1 experiment at HERA. The full data sample taken at a centre-of-mass energy root s = 319 GeV is used for the analysis, corresponding to an integrated luminosity of 245 pb(-1) of e(+)p and 166 pb(-1) of e(-)p collision data. No evidence for the production of such leptoquarks is observed in the H1 data. Leptoquarks produced in e(+/-)p collisions with a coupling strength of lambda = 0.3 and decaying with the same coupling strength to a muon-quark pair or a tau-quark pair are excluded at 95% confidence level up to leptoquark masses of 712 GeV and 479 GeV, respectively. (C) 2011 Elsevier B.V. All rights reserved.

Department/s

  • Particle and nuclear physics

Publishing year

2011

Language

English

Pages

20-30

Publication/Series

Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics

Volume

701

Issue

1

Document type

Journal article

Publisher

Elsevier

Topic

  • Subatomic Physics

Keywords

  • Lepton flavor violation
  • Leptoquarks
  • Electron-proton scattering

Status

Published

ISBN/ISSN/Other

  • ISSN: 0370-2693