The production rates and substructure of jets have been studied in charged current deep inelastic e(+)p scattering for Q(2) > 200 GeV2 with the ZEUS detector at HERA using an integrated luminosity of 110.5 pb(-1). Inclusive jet cross sections are presented for jets with transverse energies E-T(jet) > 14 GeV and pseudorapidities in the range -1 < eta(jet) < 2. Dijet cross sections are presented for events with a jet having E-T(jet) >14 Gev and a second jet having E-T(jet) > 5 GeV. Measurements of the mean events with a jet having E, > 14 GeV and a second jet having E, subjet multiplicity, (n(sbj)), of the inclusive jet sample are presented. Predictions based on parton-shower Monte Carlo models and next-to-leading-order QCD calculations are compared to the measurements. The value of alpha(s) (M-z), determined from (n(sbj)) at y(cut) = 10(-2) for jets with 25 < E-T(jet) < 119 GeV, is alpha(s) (M-z) = 0. 1202 +/- 0.0052 (stat.)(-0.0019)(+0.0060) (syst.)(-0.0053)(+0.0065) (th.). The mean subjet multiplicity as a function of Q(2) is found to be consistent with that measured in NC DlS.

Jet production in charged current deep inelastic e(+)p scattering at HERA

MONACO, Vincenzo;SACCHI, Roberto;SOLANO, Ada Maria;
2003-01-01

Abstract

The production rates and substructure of jets have been studied in charged current deep inelastic e(+)p scattering for Q(2) > 200 GeV2 with the ZEUS detector at HERA using an integrated luminosity of 110.5 pb(-1). Inclusive jet cross sections are presented for jets with transverse energies E-T(jet) > 14 GeV and pseudorapidities in the range -1 < eta(jet) < 2. Dijet cross sections are presented for events with a jet having E-T(jet) >14 Gev and a second jet having E-T(jet) > 5 GeV. Measurements of the mean events with a jet having E, > 14 GeV and a second jet having E, subjet multiplicity, (n(sbj)), of the inclusive jet sample are presented. Predictions based on parton-shower Monte Carlo models and next-to-leading-order QCD calculations are compared to the measurements. The value of alpha(s) (M-z), determined from (n(sbj)) at y(cut) = 10(-2) for jets with 25 < E-T(jet) < 119 GeV, is alpha(s) (M-z) = 0. 1202 +/- 0.0052 (stat.)(-0.0019)(+0.0060) (syst.)(-0.0053)(+0.0065) (th.). The mean subjet multiplicity as a function of Q(2) is found to be consistent with that measured in NC DlS.
2003
31
149
164
http://dx.doi.org/10.1140/epjc/s2003-01358-2
ZEUS; CURRENT CROSS-SECTIONS; POSITRON-PROTON COLLISIONS; CENTRAL TRACKING DETECTOR; ZEUS BARREL CALORIMETER; MONTE-CARLO GENERATOR; COLOR DIPOLE MODEL; PARTON DISTRIBUTIONS; HIGH Q(2); DIJET PRODUCTION; HADRON-COLLISIONS
S. Chekanov;M. Derrick;D. Krakauer;J. H. Loizides;S. Magill;B. Musgrave;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;A. Margotti;R. Nania;F. Palmonari;A. Pesci;G. Sartorelli;A. Zichichi;G. Aghuzumtsyan;D. Bartsch;I. Brock;S. Goers;H. Hartmann;E. Hilger;P. Irrgang;H. P. Jakob;A. Kappes;U. F. Katz;O. Kind;U. Meyer;E. Paul;J. Rautenberg;R. Renner;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;S. Robins;E. Rodrigues;J. Scott;R. J. Tapper;M. Wing;M. Capua;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;V. Adler;L. A. T.;U. Behrens;I. Bloch;K. Borras;V. Chiochia;D. Dannheim;G. Drews;J. Fourletova;U. Fricke;A. Geiser;F. Goebel;P. Gottlicher;O. Gutsche;T. Haas;W. Hain;G. F. Hartner;S. Hillert;B. Kahle;U. Kotz;H. Kowalski;G. Kramberger;H. Labes;D. Lelas;B. Lohr;R. Mankel;I. A. Melzer-Pellmann;M. Moritz;C. N. Nguyen;D. Notz;M. C. Petrucci;A. Polini;A. Raval;U. Schneekloth;F. Selonke;U. Stoesslein;H. Wessoleck;G. Wolf;C. Youngman;W. Zeuner;S. Schlenstedt;G. Barbagli;E. Gallo;C. Genta;P. G. Pelfer;A. Bamberger;A. Benen;N. Coppola;M. Bell;P. J. Bussey;A. T. Doyle;C. Glasman;J. Hamilton;S. Hanlon;S. W. Lee;A. Lupi;D. H. Saxon;I. O. Skillicorn;I. Gialas;B. Bodmann;T. Carli;U. Holm;K. Klimek;N. Krumnack;E. Lohrmann;M. Milite;H. Salehi;S. Stonjek;K. Wick;A. Ziegler;A. Ziegler;C. Collins-Tooth;C. Foudas;R. Goncalo;K. R. Long;A. D. Tapper;P. Cloth;D. Filges;K. Nagano;K. Tokushuku;S. Yamada;Y. Yamazaki;A. N. Barakbaev;E. G. Boos;N. S. Pokrovskiy;B. O. Zhautykov;H. Lim;D. Son;K. Piotrzkowski;F. Barreiro;O. Gonzalez;L. Labarga;J. d. Peso;E. Tassi;J. Terron;M. Vazquez;M. Barbi;F. Corriveau;S. Gliga;J. 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;N. Coppola;S. Grijpink;E. Koffeman;P. Kooijman;E. Maddox;A. Pellegrino;S. Schagen;H. Tiecke;J. J. Velthuis;L. Wiggers;E. d. Wolf;N. Brummer;B. Bylsma;L. S. Durkin;T. Y. Ling;A. M. Cooper-Sarkar;A. Cottrell;R. C. E.;J. Ferrando;G. Grzelak;S. Patel;M. R. Sutton;R. Walczak;A. Bertolin;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;F. Metlica;B. Y. Oh;J. J. Whitmore;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;A. Gabareen;S. Kananov;A. Kreisel;A. Levy;M. Kuze;T. Abe;T. Fusayasu;S. Kagawa;T. Kohno;T. Tawara;T. Yamashita;R. Hamatsu;T. Hirose;M. Inuzuka;S. Kitamura;K. Matsuzawa;T. Nishimura;M. Arneodo;M. I. Ferrero;V. Monaco;A. Ruspa;R. Sacchi;A. Solano;T. Koop;G. M. Levman;J. F. Martin;A. Mirea;J. M. Butterworth;C. Gwenlan;R. Hall-Wilton;T. W. Jones;M. S. Lightwood;B. J. West;J. Ciborowski;R. Ciesielski;R. J. Nowak;J. M. Pawlak;J. Sztuk;T. Tymieniecka;A. Ukleja;J. Ukleja;A. F. Zarnecki;M. Adamus;P. Plucinski;Y. Eisenberg;L. K. Gladilin;D. Hochman;U. Karshon;M. Riveline;D. Kcira;S. Lammers;L. Li;D. D. Reeder;A. A. Savin;W. H. Smith;A. Deshpande;S. Dhawan;P. B. Straub;S. Bhadra;C. D. Catterall;S. Fourletov;G. Hartner;S. Menary;M. Soares;J. Standage
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