APS » Phys. Rev. D » Volume 78 » Issue 3

S. Chekanov,¹ M. Derrick,¹ S. Magill,¹ B. Musgrave,¹ D. Nicholass,¹ J. Repond,¹ R. Yoshida,¹ M. C. K. Mattingly,² M. Jechow,³ N. Pavel,³ P. Antonioli,⁴ G. Bari,⁴ L. Bellagamba,⁴ D. Boscherini,⁴ A. Bruni,⁴ G. Bruni,⁴ F. Cindolo,⁴ M. Corradi,⁴ G. Iacobucci,⁴ A. Margotti,⁴ R. Nania,⁴ A. Polini,⁴ S. Antonelli,⁵ M. Basile,⁵ M. Bindi,⁵ L. Cifarelli,⁵ A. Contin,⁵ S. De Pasquale,⁵ G. Sartorelli,⁵ A. Zichichi,⁵ D. Bartsch,⁶ I. Brock,⁶ H. Hartmann,⁶ E. Hilger,⁶ H.-P. Jakob,⁶ M. Jüngst,⁶ A. E. Nuncio-Quiroz,⁶ E. Paul,⁶ R. Renner,⁶ U. Samson,⁶ V. Schönberg,⁶ R. Shehzadi,⁶ M. Wlasenko,⁶ N. H. Brook,⁷ G. P. Heath,⁷ J. D. Morris,⁷ M. Capua,⁸ S. Fazio,⁸ A. Mastroberardino,⁸ M. Schioppa,⁸ G. Susinno,⁸ E. Tassi,⁸ J. Y. Kim,⁹ Z. A. Ibrahim,¹⁰ B. Kamaluddin,¹⁰ W. A. T. Wan Abdullah,¹⁰ Y. Ning,¹¹ Z. Ren,¹¹ F. Sciulli,¹¹ J. Chwastowski,¹² A. Eskreys,¹² J. Figiel,¹² A. Galas,¹² M. Gil,¹² K. Olkiewicz,¹² P. Stopa,¹² L. Zawiejski,¹² L. Adamczyk,¹³ T. Bold,¹³ I. Grabowska-Bold,¹³ D. Kisielewska,¹³ J. Lukasik,¹³ M. Przybycień,¹³ L. Suszycki,¹³ A. Kotański,¹⁴ W. Slomiński,¹⁴ U. Behrens,¹⁵ C. Blohm,¹⁵ A. Bonato,¹⁵ K. Borras,¹⁵ R. Ciesielski,¹⁵ N. Coppola,¹⁵ V. Drugakov,¹⁵ S. Fang,¹⁵ J. Fourletova,¹⁵ A. Geiser,¹⁵ P. Göttlicher,¹⁵ J. Grebenyuk,¹⁵ I. Gregor,¹⁵ T. Haas,¹⁵ W. Hain,¹⁵ A. Hüttmann,¹⁵ F. Januschek,¹⁵ B. Kahle,¹⁵ I. I. Katkov,¹⁵ U. Klein,¹⁵ U. Kötz,¹⁵ H. Kowalski,¹⁵ E. Lobodzinska,¹⁵ B. Löhr,¹⁵ R. Mankel,¹⁵ I.-A. Melzer-Pellmann,¹⁵ S. Miglioranzi,¹⁵ A. Montanari,¹⁵ T. Namsoo,¹⁵ D. Notz,¹⁵ A. Parenti,¹⁵ L. Rinaldi,¹⁵ P. Roloff,¹⁵ I. Rubinsky,¹⁵ R. Santamarta,¹⁵ U. Schneekloth,¹⁵ A. Spiridonov,¹⁵ D. Szuba,¹⁵ J. Szuba,¹⁵ T. Theedt,¹⁵ G. Wolf,¹⁵ K. Wrona,¹⁵ A. G. Yagües Molina,¹⁵ C. Youngman,¹⁵ W. Zeuner,¹⁵ V. Drugakov,¹⁶ W. Lohmann,¹⁶ S. Schlenstedt,¹⁶ G. Barbagli,¹⁷ E. Gallo,¹⁷ P. G. Pelfer,¹⁸ A. Bamberger,¹⁹ D. Dobur,¹⁹ F. Karstens,¹⁹ N. N. Vlasov,¹⁹ P. J. Bussey,²⁰ A. T. Doyle,²⁰ W. Dunne,²⁰ M. Forrest,²⁰ M. Rosin,²⁰ D. H. Saxon,²⁰ I. O. Skillicorn,²⁰ I. Gialas,²¹ K. Papageorgiu,²¹ U. Holm,²² R. Klanner,²² E. Lohrmann,²² P. Schleper,²² T. Schörner-Sadenius,²² J. Sztuk,²² H. Stadie,²² M. Turcato,²² C. Foudas,²³ C. Fry,²³ K. R. Long,²³ A. D. Tapper,²³ T. Matsumoto,²⁴ K. Nagano,²⁴ K. Tokushuku,²⁴ S. Yamada,²⁴ Y. Yamazaki,²⁴ A. N. Barakbaev,²⁵ E. G. Boos,²⁵ N. S. Pokrovskiy,²⁵ B. O. Zhautykov,²⁵ V. Aushev,²⁶ M. Borodin,²⁶ A. Kozulia,²⁶ M. Lisovyi,²⁶ D. Son,²⁷ J. de Favereau,²⁸ K. Piotrzkowski,²⁸ F. Barreiro,²⁹ C. Glasman,²⁹ M. Jimenez,²⁹ L. Labarga,²⁹ J. del Peso,²⁹ E. Ron,²⁹ M. Soares,²⁹ J. Terrón,²⁹ M. Zambrana,²⁹ F. Corriveau,³⁰ C. Liu,³⁰ J. Schwartz,³⁰ R. Walsh,³⁰ C. Zhou,³⁰ T. Tsurugai,³¹ A. Antonov,³² B. A. Dolgoshein,³² D. Gladkov,³² V. Sosnovtsev,³² A. Stifutkin,³² S. Suchkov,³² R. K. Dementiev,³³ P. F. Ermolov,³³ L. K. Gladilin,³³ Yu. A. Golubkov,³³ L. A. Khein,³³ I. A. Korzhavina,³³ V. A. Kuzmin,³³ B. B. Levchenko,³³ O. Yu. Lukina,³³ A. S. Proskuryakov,³³ L. M. Shcheglova,³³ D. S. Zotkin,³³ I. Abt,³⁴ C. Büttner,³⁴ A. Caldwell,³⁴ D. Kollar,³⁴ B. Reisert,³⁴ W. B. Schmidke,³⁴ J. Sutiak,³⁴ G. Grigorescu,³⁵ A. Keramidas,³⁵ E. Koffeman,³⁵ P. Kooijman,³⁵ A. Pellegrino,³⁵ H. Tiecke,³⁵ M. Vázquez,³⁵ L. Wiggers,³⁵ N. Brümmer,³⁶ B. Bylsma,³⁶ L. S. Durkin,³⁶ A. Lee,³⁶ T. Y. Ling,³⁶ P. D. Allfrey,³⁷ M. A. Bell,³⁷ A. M. Cooper-Sarkar,³⁷ R. C. E. Devenish,³⁷ J. Ferrando,³⁷ B. Foster,³⁷ K. Korcsak-Gorzo,³⁷ K. Oliver,³⁷ S. Patel,³⁷ V. Roberfroid,³⁷ A. Robertson,³⁷ P. B. Straub,³⁷ C. Uribe-Estrada,³⁷ R. Walczak,³⁷ A. Bertolin,³⁸ F. Dal Corso,³⁸ S. Dusini,³⁸ A. Longhin,³⁸ L. Stanco,³⁸ P. Bellan,³⁹ R. Brugnera,³⁹ R. Carlin,³⁹ A. Garfagnini,³⁹ S. Limentani,³⁹ B. Y. Oh,⁴⁰ A. Raval,⁴⁰ J. Ukleja,⁴⁰ J. J. Whitmore,⁴⁰ Y. Iga,⁴¹ G. D'Agostini,⁴² G. Marini,⁴² A. Nigro,⁴² J. E. Cole,⁴³ J. C. Hart,⁴³ H. Abramowicz,⁴⁴ A. Gabareen,⁴⁴ R. Ingbir,⁴⁴ S. Kananov,⁴⁴ A. Levy,⁴⁴ O. Smith,⁴⁴ A. Stern,⁴⁴ M. Kuze,⁴⁵ J. Maeda,⁴⁵ R. Hori,⁴⁶ S. Kagawa,⁴⁶ N. Okazaki,⁴⁶ S. Shimizu,⁴⁶ T. Tawara,⁴⁶ R. Hamatsu,⁴⁷ H. Kaji,⁴⁷ S. Kitamura,⁴⁷ O. Ota,⁴⁷ Y. D. Ri,⁴⁷ M. Costa,⁴⁸ M. I. Ferrero,⁴⁸ V. Monaco,⁴⁸ R. Sacchi,⁴⁸ A. Solano,⁴⁸ M. Arneodo,⁴⁹ M. Ruspa,⁴⁹ S. Fourletov,⁵⁰ J. F. Martin,⁵⁰ T. P. Stewart,⁵⁰ S. K. Boutle,⁵¹ J. M. Butterworth,⁵¹ C. Gwenlan,⁵¹ T. W. Jones,⁵¹ J. H. Loizides,⁵¹ M. Wing,⁵¹ B. Brzozowska,⁵² J. Ciborowski,⁵² G. Grzelak,⁵² P. Kulinski,⁵² P. Luzniak,⁵² J. Malka,⁵² R. J. Nowak,⁵² J. M. Pawlak,⁵² T. Tymieniecka,⁵² A. Ukleja,⁵¹ A. F. Żarnecki,⁵² M. Adamus,⁵³ P. Plucinski,⁵³ Y. Eisenberg,⁵⁴ D. Hochman,⁵⁴ U. Karshon,⁵⁴ E. Brownson,⁵⁵ T. Danielson,⁵⁵ A. Everett,⁵⁵ D. Kçira,⁵⁵ D. D. Reeder,⁵⁵ P. Ryan,⁵⁵ A. A. Savin,⁵⁵ W. H. Smith,⁵⁵ H. Wolfe,⁵⁵ S. Bhadra,⁵⁶ C. D. Catterall,⁵⁶ Y. Cui,⁵⁶ G. Hartner,⁵⁶ S. Menary,⁵⁶ U. Noor,⁵⁶ J. Standage,⁵⁶ and J. Whyte⁵⁶

(ZEUS Collaboration)

¹Argonne National Laboratory, Argonne, Illinois 60439-4815, USA
²Andrews University, Berrien Springs, Michigan 49104-0380, USA
³Institut für Physik der Humboldt-Universität zu Berlin, Berlin, Germany
⁴INFN Bologna, Bologna, Italy
⁵University and INFN Bologna, Bologna, Italy
⁶Physikalisches Institut der Universität Bonn, Bonn, Germany
⁷H. H. Wills Physics Laboratory, University of Bristol, Bristol, United Kingdom
⁸Calabria University, Physics Department and INFN, Cosenza, Italy
⁹Chonnam National University, Kwangju, Republic of Korea
¹⁰Jabatan Fizik, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
¹¹Nevis Laboratories, Columbia University, Irvington on Hudson, New York 10027, USA
¹²The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Cracow, Poland
¹³Faculty of Physics and Applied Computer Science, AGH-University of Science and Technology, Cracow, Poland
¹⁴Department of Physics, Jagellonian University, Cracow, Poland
¹⁵Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
¹⁶Deutsches Elektronen-Synchrotron DESY, Zeuthen, Germany
¹⁷INFN Florence, Florence, Italy
¹⁸University and INFN Florence, Florence, Italy
¹⁹Fakultät für Physik der Universität Freiburg i.Br., Freiburg i.Br., Germany
²⁰Department of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
²¹Department of Engineering in Management and Finance, University of Aegean, Greece
²²Hamburg University, Institute of Experimental Physics, Hamburg, Germany
²³Imperial College London, High Energy Nuclear Physics Group, London, United Kingdom
²⁴Institute of Particle and Nuclear Studies, KEK, Tsukuba, Japan
²⁵Institute of Physics and Technology of Ministry of Education and Science of Kazhakhstan, Almaty, Kazhakhstan
²⁶Institute for Nuclear Research, National Academy of Sciences, Kiev and Kiev National University, Kiev, Ukraine
²⁷Kyungpook National University, Center for High Energy Physics, Daegu, Republic of Korea
²⁸Institut de Physique Nucléaire, Université Catholique de Louvain, Louvain-la-Neuve, Belgium
²⁹Departamento de Física Teórica, Universidad Autónoma de Madrid, Madrid, Spain
³⁰Department of Physics, McGill University, Montréal, Québec, Canada H3A 2T8
³¹Meiji Gakuin University, Faculty of General Education, Yokohama, Japan
³²Moscow Engineering Physics Institute, Moscow, Russia
³³Moscow State University, Institute of Nuclear Physics, Moscow, Russia
³⁴Max-Planck-Institut für Physik, München, Germany
³⁵NIKHEF and University of Amsterdam, Amsterdam, Netherlands
³⁶Physics Department, Ohio State University, Columbus, Ohio 43210, USA
³⁷Department of Physics, University of Oxford, Oxford, United Kingdom
³⁸INFN Padova, Padova, Italy
³⁹Dipartimento di Fisica dell' Università and INFN, Padova, Italy
⁴⁰Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
⁴¹Polytechnic University, Sagamihara, Japan
⁴²Dipartimento di Fisica, Università “La Sapienza” and INFN, Rome, Italy
⁴³Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, United Kingdom
⁴⁴Raymond and Beverly Sackler Faculty of Exact Sciences, School of Physics, Tel-Aviv University, Tel-Aviv, Israel
⁴⁵Department of Physics, Tokyo Institute of Technology, Tokyo, Japan
⁴⁶Department of Physics, University of Tokyo, Tokyo, Japan
⁴⁷Tokyo Metropolitan University, Department of Physics, Tokyo, Japan
⁴⁸Università di Torino and INFN, Torino, Italy
⁴⁹Università del Piemonte Orientale, Novara, and INFN, Torino, Italy
⁵⁰Department of Physics, University of Toronto, Toronto, Ontario, Canada M5S 1A7
⁵¹Physics and Astronomy Department, University College London, London, United Kingdom
⁵²Warsaw University, Institute of Experimental Physics, Warsaw, Poland
⁵³Institute for Nuclear Studies, Warsaw, Poland
⁵⁴Department of Particle Physics, Weizmann Institute, Rehovot, Israel
⁵⁵Department of Physics, University of Wisconsin, Madison, Wisconsin 53706, USA
⁵⁶Department of Physics, York University, Ontario, Canada M3J 1P3

Jet cross sections were measured in charged-current deep inelastic e^±p scattering at high boson virtualities Q² with the ZEUS detector at HERA II using an integrated luminosity of 0.36 fb^-1. Differential cross sections are presented for inclusive-jet production as functions of Q², Bjorken x and the jet transverse energy and pseudorapidity. The dijet invariant mass cross section is also presented. Observation of three- and four-jet events in charged-current e^±p processes is reported for the first time. The predictions of next-to-leading-order (NLO) QCD calculations are compared to the measurements. The measured inclusive-jet cross sections are well described in shape and normalization by the NLO predictions. The data have the potential to constrain the u and d valence-quark distributions in the proton if included as input to global fits.

©2008 The American Physical Society

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