Data di Pubblicazione:
2003
Abstract:
Events with a final-state proton carrying a large fraction of the proton beam momentum, x(L) > 0.6, and the square of the transverse momentum p(T)(2) < 0.5 GeV2 T, have been studied in e(+)p collisions with the ZEUS detector at HERA. Data with different photon virtualities were used: Q(2) < 0.02 GeV2, 0.1 < Q(2) < 0.74 GeV2 and 3 < Q(2) < 254 GeV2, corresponding to integrated luminosities of 0.9, 1.85 and 3.38 pb(-1). The cross sections are given as a function of x(L), p(T)(2), Q(2) and the Bjorken scaling variable, x. The ratio of the cross section for leading proton production to the inclusive e(+)p cross section shows only a mild dependence on Q(2) and on x. In the region 0.6 < x(L) < 0.97, the relative yield of protons is only a weak function of x(L). (C) 2003 Elsevier Science B.V. All rights reserved.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
ZEUS; DEEP-INELASTIC SCATTERING; LEPTON-NUCLEON SCATTERING; CENTRAL TRACKING DETECTOR; ZEUS BARREL CALORIMETER; STRUCTURE-FUNCTION F-2; MONTE-CARLO GENERATOR; DIFFRACTIVE PHOTOPRODUCTION; NEUTRON-PRODUCTION; FRACTURE FUNCTIONS; CROSS-SECTIONS
Elenco autori:
S. Chekanov;D. Krakauer;J. H. Loizides;S. Magill;B. Musgrave;J. Repond;R. Yoshida;M. C. K.;P. Antonioli;G. Anzivino;G. Bari;M. Basile;L. Bellagamba;D. Boscherini;A. Bruni;G. Bruni;G. C. Romeo;M. Chiarini;L. Cifarelli;F. Cindolo;A. Contin;M. Corradi;S. D. Pasquale;P. Giusti;G. Iacobucci;G. Levi;A. Margotti;T. Massam;R. Nania;C. Nemoz;F. Palmonari;A. Pesci;G. Sartorelli;Y. Z. Garcia;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;O. Kind;E. Paul;J. Rautenberg;R. Renner;H. Schnurbusch;A. Stifutkin;J. Tandler;K. C. Voss;M. Wang;A. Weber;D. S. Bailey;N. H. Brook;J. E. Cole;B. Foster;G. P. Heath;H. F. Heath;T. Namsoo;S. Robins;E. Rodrigues;M. Wing;R. Ayad;M. Capua;L. Iannotti;A. Mastroberardino;M. Schioppa;G. Susinno;J. Y. Kim;Y. K. Kim;J. H. Lee;I. T. Lim;M. Y. Pac;A. Caldwell;M. Helbich;X. Liu;B. Mellado;Y. Ning;S. Paganis;Z. Ren;W. B. Schmidke;F. Sciulli;J. Chwastowski;A. Eskreys;J. Figiel;K. Olkiewicz;P. Stopa;L. Zawiejski;L. Adamczyk;T. Bold;I. Grabowska-Bold;D. Kisielewska;A. M. Kowal;M. Kowal;T. Kowalski;M. Przybycien;L. Suszycki;D. Szuba;J. Szuba;A. Kotanski;W. Slominski;L. A. T.;U. Behrens;I. Bloch;K. Borras;V. Chiochia;D. Dannheim;M. Derrick;G. Drews;J. Fourletova;A. Fox-Murphy;U. Fricke;A. Geiser;F. Goebel;P. Gottlicher;O. Gutsche;T. Haas;W. Hain;G. F. Hartner;S. Hillert;U. Kotz;H. Kowalski;G. Kramberger;H. Labes;D. Lelas;B. Lohr;R. Mankel;I. A. Melzer-Pellmann;M. Moritz;D. Notz;M. C. Petrucci;A. Polini;A. Raval;U. Schneekloth;F. Selonke;H. Wessoleck;R. Wichmann;G. Wolf;C. Youngman;W. Zeuner;A. L. P.;A. Meyer;S. Schlenstedt;G. Barbagli;E. Gallo;C. Genta;P. G. Pelfer;A. Bamberger;A. Benen;N. Coppola;H. Raach;M. Bell;P. J. Bussey;A. T. Doyle;C. Glasman;J. Hamilton;S. Hanlon;A. Lupi;D. H. Saxon;I. O. Skillicorn;I. Gialas;B. Bodmann;T. Carli;U. Holm;K. Klimek;N. Krumnack;E. Lohrmann;M. Milite;S. Salehi;S. Stonjek;K. Wick;A. Ziegler;A. Ziegler;C. Collins-Tooth;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;H. Lim;D. Son;F. Barreiro;O. Gonzalez;L. Labarga;J. d. Peso;I. Redondo;J. Terron;M. Vazquez;M. Barbi;A. Bertolin;F. Corriveau;S. Gliga;S. Lainesse;S. Padhi;D. G. Stairs;T. Tsurugai;A. Antonov;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;I. A. Korzhavina;V. A. Kuzmin;B. B. Levchenko;O. Y. Lukina;A. S. Proskuryakov;L. M. Shcheglova;N. N. Vlasov;S. A. Zotkin;C. Bokel;J. Engelen;S. Grijpink;E. Koffeman;P. Kooijman;E. Maddox;A. Pellegrino;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;G. Grzelak;S. Patel;M. Rigby;M. R. Sutton;R. Walczak;R. Brugnera;R. Carlin;F. D. Corso;S. Dusini;A. Garfagnini;S. Limentani;A. Longhin;A. Parenti;M. Posocco;L. Stanco;M. Turcato;E. A. Heaphy;B. Y. Oh;P. R. B.;J. J. Whitmore;Y. Iga;G. D'Agostini;G. Marini;A. Nigro;C. Cormack;J. C. Hart;E. Barberis;C. Heusch;W. Lockman;J. T. Rahn;H. F. W.;A. Seiden;D. C. Williams;I. H. Park;N. Pavel;H. Abramowicz;A. Gabareen;S. Kananov;A. Kreisel;A. Levy;T. Abe;T. Fusayasu;S. Kagawa;T. Kohno;T. Tawara;T. Yamashita;R. Hamatsu;T. Hirose;M. Inuzuka;H. Kaji;S. Kitamura;K. Matsuzawa;T. Nishimura;S. Patel;M. Arneodo;N. Cartiglia;R. Cirio;M. Costa;M. I. Ferrero;L. Lamberti;S. Maselli;V. Monaco;C. R. Peroni;M. I. Ferrero;R. Sacchi;A. Solano;A. Staiano;R. Galea;T
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