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  1. Pubblicazioni

Searches for excited fermions in ep collisions at HERA

Articolo
Data di Pubblicazione:
2002
Abstract:
Searches in ep collisions for heavy excited fermions have been performed with the ZEUS detector at HERA. Excited states of electrons and quarks have been searched for in e(+)p collisions at a centre-of-mass energy of 300 GeV using an integrated luminosity of 47.7 pb(-1). Excited electrons have been sought via the decays e* --> egamma, e* --> eZ and e* --> nuW. Excited quarks have been sought via the decays q* --> qgamma and q* --> qW. A search for excited neutrinos decaying via nu* --> nugamma, nu* --> vZ and nu* --> eW is presented using e(-) p collisions at 318 GeV centre-of-mass energy, corresponding to an integrated luminosity of 16.7 pb(-1). No evidence for any excited fermion is found, and limits on the characteristic couplings are derived for masses less than or similar to250 GeV. (C) 2002 Elsevier Science B.V. All rights reserved.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
ZEUS; LUND MONTE-CARLO; CENTRAL TRACKING DETECTOR; JET FRAGMENTATION; LEPTON PRODUCTION; E+E-PHYSICS; CONSTRUCTION; GENERATOR; ENERGY; CALORIMETER
Elenco autori:
S. Chekanov;M. Derrick;D. Krakauer;S. Magill;B. Musgrave;A. Pellegrino;J. Repond;R. Yoshida;M. C. K.;P. Antonioli;G. Bari;M. Basile;L. Bellagamba;D. Boscherini;A. Bruni;G. Bruni;G. C. Romeo;L. Cifarelli;F. Cindolo;A. Contin;M. Corradi;S. D. Pasquale;P. Giusti;G. Iacobucci;G. Levi;A. Margotti;T. Massam;R. Nania;F. Palmonari;A. Pesci;G. Sartorelli;A. Zichichi;G. Aghuzumtsyan;I. Brock;S. Goers;H. Hartmann;E. Hilger;P. Irrgang;H. P. Jakob;A. Kappes;U. F. Katz;R. Kerger;O. Kind;E. Paul;J. Rautenberg;H. Schnurbusch;A. Stifutkin;J. Tandler;K. C. Voss;A. Weber;H. Wieber;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. Klimek;K. Olkiewicz;M. B. Przybycien;P. Stopa;L. Zawiejski;B. Bednarek;I. Grabowska-Bold;K. Jelen;D. Kisielewska;A. M. Kowal;M. Kowal;T. Kowalski;B. Mindur;M. Przybycien;E. Rulikowska-Zarebska;L. Suszycki;D. Szuba;J. Szuba;A. Kotanski;L. A. T.;U. Behrens;K. Borras;V. Chiochia;J. Crittenden;D. Dannheim;K. Desler;G. Drews;A. Fox-Murphy;U. Fricke;A. Geiser;F. Goebel;P. Gottlicher;R. Graciani;T. Haas;W. Hain;G. F. Hartner;K. Hebbel;S. Hillert;U. Kotz;H. Kowalski;H. Labes;B. Lohr;R. Mankel;J. Martens;M. Martinez;M. Milite;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. L. D.;A. Meyer;S. Schlenstedt;G. Barbagli;E. Gallo;P. G. Pelfer;A. Bamberger;A. Benen;N. Coppola;P. Markun;H. Raach;S. Wolfle;M. Bell;P. J. Bussey;A. T. Doyle;C. Glasman;S. W. Lee;A. Lupi;G. J. McCance;D. H. Saxon;I. O. Skillicorn;B. Bodmann;N. Gendner;U. Holm;H. Salehi;K. Wick;A. Yildirim;A. Ziegler;T. Carli;A. Garfagnini;I. Gialas;E. Lohrmann;C. Foudas;R. Goncalo;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. Garcia;O. Gonzalez;L. Labarga;J. d. Peso;I. Redondo;J. Terron;M. Vazquez;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;Y. 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. d. Wolf;N. Brummer;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.;J. Ferrando;J. Grosse-Knetter;T. Matsushita;M. Rigby;O. Ruske;M. R. Sutton;R. Walczak;R. Brugnera;R. Carlin;F. D. Corso;S. Dusini;S. Limentani;A. Longhin;A. Parenti;M. Posocco;L. Stanco;M. Turcato;L. Adamczyk;L. Iannotti;B. Y. Oh;P. R. B.;W. S. Toothacker;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;D. C. Bailey;C. P. Fagerstroem;R. Galea;
Autori di Ateneo:
CIRIO Roberto
COSTA Marco
MONACO Vincenzo
SACCHI Roberto
SOLANO Ada Maria
Link alla scheda completa:
https://iris.unito.it/handle/2318/106390
Pubblicato in:
PHYSICS LETTERS. SECTION B
Journal
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URL

http://dx.doi.org/10.1016/S0370-2693(02)02863-0
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