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Leif Jönsson

Leif Jönsson

Professor emeritus

Leif Jönsson

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

Author

  • 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. Deak
  • 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. Giazov
  • I. Glushkov
  • L. Goerlich
  • M. Goettlich
  • N. Gogitidze
  • M. Gouzevitch
  • C. Grab
  • T. Greenshaw
  • B. R. Grell
  • G. Grindhammer
  • S. Habib
  • D. Haidt
  • Magnus 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
  • Leif Jönsson
  • D. P. Johnson
  • A. W. Jung
  • H. Jung
  • M. Kapichine
  • J. Katzy
  • I. R. Kenyon
  • C. Kiesling
  • M. Klein
  • C. Kleinwort
  • T. Klimkovich
  • I. Kluge
  • A. Knutsson
  • R. Kogler
  • V. Korbel
  • P. Kostka
  • M. Kraemer
  • K. Krastev
  • J. Kretzschmar
  • A. Kropivnitskaya
  • K. Kroeger
  • K. Kutak
  • M. P. J. Landon
  • W. Lange
  • G. Lastovicka-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
  • Li. 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. Mueller
  • P. Murin
  • K. Nankov
  • B. Naroska
  • Th. Naumann
  • P. R. Newman
  • C. Niebuhr
  • A. Nikiforov
  • G. Nowak
  • K. Nowak
  • M. Nozicka
  • B. Olivier
  • J. E. Olsson
  • Sakar 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. Placakyte
  • R. Polifka
  • B. Povh
  • T. Preda
  • V. Radescu
  • Aj. Rahmat
  • N. Raicevic
  • A. Raspiareza
  • I. 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. Schoening
  • H. -C. Schultz-Coulon
  • F. Sefkow
  • R. N. Shaw-West
  • I. Sheviakov
  • L. N. Shtarkov
  • I. Sloan
  • I. Smijanic
  • P. Smirnov
  • Y. Soloviev
  • D. South
  • V. Spaskov
  • A. Specka
  • Z. Staykova
  • M. Steder
  • B. Stella
  • U. Straumann
  • D. Sunar
  • I. Sykora
  • V. Tchoulakov
  • G. Thompson
  • P. D. Thompson
  • T. Toll
  • F. Tomasz
  • T. H. Tran
  • D. Traynor
  • T. N. Trinh
  • P. Truoel
  • I. Tsakov
  • B. Tseepeldorj
  • I. Tsurin
  • J. Turnau
  • E. Tzamariudaki
  • K. Urban
  • A. Valkarova
  • C. Vallee
  • P. Van Mechelen
  • A. Vargas Trevino
  • Y. Vazdik
  • S. Vinokurova
  • V. Volchinskial
  • D. Wegener
  • M. Wessels
  • Ch. Wissing
  • R. Wolf
  • E. Wunsch
  • V. Yeganov
  • J. Zacek
  • J. Zalesak
  • Z. Zhang
  • A. Zhelezov
  • A. Zhokin
  • Y. C. Zhu
  • T. Zimmermann
  • H. Zohrabyan
  • F. Zomer

Summary, in English

A search for first generation excited neutrinos is performed using the full e(-) p data sample collected by the HI 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 nu* -> nu gamma, v* -> nu Z and nu* -> eW 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 nu* production cross sections and on the ratio of the coupling to the compositeness scale f/boolean AND are derived within gauge mediated models. A limit on f/boolean AND A, 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. (c) 2008 Elsevier B.V. All rights reserved.

Department/s

  • Particle and nuclear physics

Publishing year

2008

Language

English

Pages

382-389

Publication/Series

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

Volume

663

Issue

5

Document type

Journal article

Publisher

Elsevier

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 0370-2693