APS » Phys. Rev. D » Volume 73 » Issue 5

D. Acosta,¹⁴ T. Affolder,⁷ M. G. Albrow,¹³ D. Ambrose,³⁶ D. Amidei,²⁷ K. Anikeev,²⁶ J. Antos,¹ G. Apollinari,¹³ T. Arisawa,⁵⁰ A. Artikov,¹¹ W. Ashmanskas,² F. Azfar,³⁴ P. Azzi-Bacchetta,³⁵ N. Bacchetta,³⁵ H. Bachacou,²⁴ W. Badgett,¹³ A. Barbaro-Galtieri,²⁴ V. E. Barnes,³⁹ B. A. Barnett,²¹ S. Baroiant,⁵ M. Barone,¹⁵ G. Bauer,²⁶ F. Bedeschi,³⁷ S. Behari,²¹ S. Belforte,⁴⁷ W. H. Bell,¹⁷ G. Bellettini,³⁷ J. Bellinger,⁵¹ D. Benjamin,¹² A. Beretvas,¹³ A. Bhatti,⁴¹ M. Binkley,¹³ D. Bisello,³⁵ M. Bishai,¹³ R. E. Blair,² C. Blocker,⁴ K. Bloom,²⁷ B. Blumenfeld,²¹ A. Bocci,⁴¹ A. Bodek,⁴⁰ G. Bolla,³⁹ A. Bolshov,²⁶ D. Bortoletto,³⁹ J. Boudreau,³⁸ C. Bromberg,²⁸ E. Brubaker,²⁴ J. Budagov,¹¹ H. S. Budd,⁴⁰ K. Burkett,¹³ G. Busetto,³⁵ K. L. Byrum,² S. Cabrera,¹² M. Campbell,²⁷ W. Carithers,²⁴ D. Carlsmith,⁵¹ A. Castro,³ D. Cauz,⁴⁷ A. Cerri,²⁴ L. Cerrito,²⁰ J. Chapman,²⁷ C. Chen,³⁶ Y. C. Chen,¹ M. Chertok,⁵ G. Chiarelli,³⁷ G. Chlachidze,¹³ F. Chlebana,¹³ M. L. Chu,¹ J. Y. Chung,³² W.-H. Chung,⁵¹ Y. S. Chung,⁴⁰ C. I. Ciobanu,²⁰ A. G. Clark,¹⁶ M. Coca,⁴⁰ A. Connolly,²⁴ M. Convery,⁴¹ J. Conway,⁴³ M. Cordelli,¹⁵ J. Cranshaw,⁴⁵ R. Culbertson,¹³ D. Dagenhart,⁴ S. D'Auria,¹⁷ P. de Barbaro,⁴⁰ S. De Cecco,⁴² S. Dell'Agnello,¹⁵ M. Dell'Orso,³⁷ S. Demers,⁴⁰ L. Demortier,⁴¹ M. Deninno,³ D. De Pedis,⁴² P. F. Derwent,¹³ C. Dionisi,⁴² J. R. Dittmann,¹³ A. Dominguez,²⁴ S. Donati,³⁷ M. D'Onofrio,¹⁶ T. Dorigo,³⁵ N. Eddy,²⁰ R. Erbacher,¹³ D. Errede,²⁰ S. Errede,²⁰ R. Eusebi,⁴⁰ S. Farrington,¹⁷ R. G. Feild,⁵² J. P. Fernandez,³⁹ C. Ferretti,²⁷ R. D. Field,¹⁴ I. Fiori,³⁷ B. Flaugher,¹³ L. R. Flores-Castillo,³⁸ G. W. Foster,¹³ M. Franklin,¹⁸ J. Friedman,²⁶ I. Furic,²⁶ M. Gallinaro,⁴¹ M. Garcia-Sciveres,²⁴ A. F. Garfinkel,³⁹ C. Gay,⁵² D. W. Gerdes,²⁷ E. Gerstein,⁹ S. Giagu,⁴² P. Giannetti,³⁷ K. Giolo,³⁹ M. Giordani,⁴⁷ P. Giromini,¹⁵ V. Glagolev,¹¹ D. Glenzinski,¹³ M. Gold,³⁰ N. Goldschmidt,²⁷ J. Goldstein,³⁴ G. Gomez,⁸ M. Goncharov,⁴⁴ I. Gorelov,³⁰ A. T. Goshaw,¹² Y. Gotra,³⁸ K. Goulianos,⁴¹ A. Gresele,³ C. Grosso-Pilcher,¹⁰ M. Guenther,³⁹ J. Guimaraes da Costa,¹⁸ C. Haber,²⁴ S. R. Hahn,¹³ E. Halkiadakis,⁴⁰ R. Handler,⁵¹ F. Happacher,¹⁵ K. Hara,⁴⁸ R. M. Harris,¹³ F. Hartmann,²² K. Hatakeyama,⁴¹ J. Hauser,⁶ J. Heinrich,³⁶ M. Hennecke,²² M. Herndon,²¹ C. Hill,⁷ A. Hocker,⁴⁰ K. D. Hoffman,¹⁰ S. Hou,¹ B. T. Huffman,³⁴ R. Hughes,³² J. Huston,²⁸ J. Incandela,⁷ G. Introzzi,³⁷ M. Iori,⁴² C. Issever,⁷ A. Ivanov,⁴⁰ Y. Iwata,¹⁹ B. Iyutin,²⁶ E. James,¹³ M. Jones,³⁹ T. Kamon,⁴⁴ J. Kang,²⁷ M. Karagoz Unel,³¹ S. Kartal,¹³ H. Kasha,⁵² Y. Kato,³³ R. D. Kennedy,¹³ R. Kephart,¹³ B. Kilminster,⁴⁰ D. H. Kim,²³ H. S. Kim,²⁰ M. J. Kim,⁹ S. B. Kim,²³ S. H. Kim,⁴⁸ T. H. Kim,²⁶ Y. K. Kim,¹⁰ M. Kirby,¹² L. Kirsch,⁴ S. Klimenko,¹⁴ P. Koehn,³² K. Kondo,⁵⁰ J. Konigsberg,¹⁴ A. Korn,²⁶ A. Korytov,¹⁴ J. Kroll,³⁶ M. Kruse,¹² V. Krutelyov,⁴⁴ S. E. Kuhlmann,² N. Kuznetsova,¹³ A. T. Laasanen,³⁹ S. Lami,⁴¹ S. Lammel,¹³ J. Lancaster,¹² M. Lancaster,²⁵ R. Lander,⁵ K. Lannon,³² A. Lath,⁴³ G. Latino,³⁰ T. LeCompte,² Y. Le,²¹ J. Lee,⁴⁰ S. W. Lee,⁴⁴ N. Leonardo,²⁶ S. Leone,³⁷ J. D. Lewis,¹³ K. Li,⁵² C. S. Lin,¹³ M. Lindgren,⁶ T. M. Liss,²⁰ D. O. Litvintsev,³⁰ T. Liu,¹³ N. S. Lockyer,³⁶ A. Loginov,²⁹ M. Loreti,³⁵ D. Lucchesi,³⁵ P. Lukens,¹³ L. Lyons,³⁴ J. Lys,²⁴ R. Madrak,¹⁸ K. Maeshima,¹³ P. Maksimovic,²¹ L. Malferrari,³ M. Mangano,³⁷ G. Manca,³⁴ M. Mariotti,³⁵ M. Martin,²¹ A. Martin,⁵² V. Martin,³¹ M. Martínez,¹³ P. Mazzanti,³ K. S. McFarland,⁴⁰ P. McIntyre,⁴⁴ M. Menguzzato,³⁵ A. Menzione,³⁷ P. Merkel,¹³ C. Mesropian,⁴¹ A. Meyer,¹³ T. Miao,¹³ J. S. Miller,²⁷ R. Miller,²⁸ S. Miscetti,¹⁵ G. Mitselmakher,¹⁴ N. Moggi,³ R. Moore,¹³ T. Moulik,³⁹ A. Mukherjee,¹³ M. Mulhearn,²⁶ T. Muller,²² A. Munar,³⁶ P. Murat,¹³ J. Nachtman,¹³ S. Nahn,⁵² I. Nakano,¹⁹ R. Napora,²¹ C. Nelson,¹³ T. Nelson,¹³ C. Neu,³² M. S. Neubauer,²⁶ C. Newman-Holmes,¹³ F. Niell,²⁷ T. Nigmanov,³⁸ L. Nodulman,² S. H. Oh,¹² Y. D. Oh,²³ T. Ohsugi,¹⁹ T. Okusawa,³³ W. Orejudos,²⁴ C. Pagliarone,³⁷ F. Palmonari,³⁷ R. Paoletti,³⁷ V. Papadimitriou,⁴⁵ J. Patrick,¹³ G. Pauletta,⁴⁷ M. Paulini,⁹ T. Pauly,³⁴ C. Paus,²⁶ D. Pellett,⁵ A. Penzo,⁴⁷ T. J. Phillips,¹² G. Piacentino,³⁷ J. Piedra,⁸ K. T. Pitts,²⁰ A. Pompos,³⁹ L. Pondrom,⁵¹ G. Pope,³⁸ O. Poukov,¹¹ T. Pratt,³⁴ F. Prokoshin,¹¹ J. Proudfoot,² F. Ptohos,¹⁵ G. Punzi,³⁷ J. Rademacker,³⁴ A. Rakitine,²⁶ F. Ratnikov,⁴³ H. Ray,²⁷ A. Reichold,³⁴ P. Renton,³⁴ M. Rescigno,⁴² F. Rimondi,³ L. Ristori,³⁷ W. J. Robertson,¹² T. Rodrigo,⁸ S. Rolli,⁴⁹ L. Rosenson,²⁶ R. Roser,¹³ R. Rossin,³⁵ C. Rott,³⁹ A. Roy,³⁹ A. Ruiz,⁸ D. Ryan,⁴⁹ A. Safonov,⁵ R. St. Denis,¹⁷ W. K. Sakumoto,⁴⁰ D. Saltzberg,⁶ C. Sanchez,³² A. Sansoni,¹⁵ L. Santi,⁴⁷ S. Sarkar,⁴² P. Savard,⁴⁶ A. Savoy-Navarro,¹³ P. Schlabach,¹³ E. E. Schmidt,¹³ M. P. Schmidt,⁵² M. Schmitt,³¹ L. Scodellaro,³⁵ A. Scribano,³⁷ A. Sedov,³⁹ S. Seidel,³⁰ Y. Seiya,⁴⁸ A. Semenov,¹¹ F. Semeria,³ M. D. Shapiro,²⁴ P. F. Shepard,³⁸ T. Shibayama,⁴⁸ M. Shimojima,⁴⁸ M. Shochet,¹⁰ A. Sidoti,³⁵ A. Sill,⁴⁵ P. Sinervo,⁴⁶ A. J. Slaughter,⁵² K. Sliwa,⁴⁹ F. D. Snider,¹³ R. Snihur,²⁵ M. Spezziga,⁴⁵ L. Spiegel,¹³ F. Spinella,³⁷ M. Spiropulu,⁷ A. Stefanini,³⁷ J. Strologas,³⁰ D. Stuart,⁷ A. Sukhanov,¹⁴ K. Sumorok,²⁶ T. Suzuki,⁴⁸ R. Takashima,¹⁹ K. Takikawa,⁴⁸ M. Tanaka,² M. Tecchio,²⁷ P. K. Teng,¹ K. Terashi,⁴¹ R. J. Tesarek,¹³ S. Tether,²⁶ J. Thom,¹³ A. S. Thompson,¹⁷ E. Thomson,³² P. Tipton,⁴⁰ S. Tkaczyk,¹³ D. Toback,⁴⁴ K. Tollefson,²⁸ D. Tonelli,³⁷ M. Tönnesmann,²⁸ H. Toyoda,³³ W. Trischuk,⁴⁶ J. Tseng,²⁶ D. Tsybychev,¹⁴ N. Turini,³⁷ F. Ukegawa,⁴⁸ T. Unverhau,¹⁷ T. Vaiciulis,⁴⁰ A. Varganov,²⁷ E. Vataga,³⁷ S. Vejcik,¹³ G. Velev,¹³ G. Veramendi,²⁴ R. Vidal,¹³ I. Vila,⁸ R. Vilar,⁸ I. Volobouev,²⁴ M. von der Mey,⁶ R. G. Wagner,² R. L. Wagner,¹³ W. Wagner,²² Z. Wan,⁴³ C. Wang,¹² M. J. Wang,¹ S. M. Wang,¹⁴ B. Ward,¹⁷ S. Waschke,¹⁷ D. Waters,²⁵ T. Watts,⁴³ M. Weber,²⁴ W. C. Wester,¹³ B. Whitehouse,⁴⁹ A. B. Wicklund,² E. Wicklund,¹³ H. H. Williams,³⁶ P. Wilson,¹³ B. L. Winer,³² S. Wolbers,¹³ M. Wolter,⁴⁹ S. Worm,⁴³ X. Wu,¹⁶ F. Würthwein,²⁶ U. K. Yang,¹⁰ W. Yao,²⁴ G. P. Yeh,¹³ K. Yi,²¹ J. Yoh,¹³ T. Yoshida,³³ I. Yu,²³ S. Yu,³⁶ J. C. Yun,¹³ L. Zanello,⁴² A. Zanetti,⁴⁷ F. Zetti,²⁴ and S. Zucchelli^3
1Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China
²Argonne National Laboratory, Argonne, Illinois 60439, USA
³Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna, Italy
⁴Brandeis University, Waltham, Massachusetts 02254, USA
⁵University of California at Davis, Davis, California 95616, USA
⁶University of California at Los Angeles, Los Angeles, California 90024, USA
⁷University of California at Santa Barbara, Santa Barbara, California 93106, USA
⁸Instituto de Fisica de Cantabria, CSIC-University of Cantabria, 39005 Santander, Spain
⁹Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
¹⁰Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
¹¹Joint Institute for Nuclear Research, RU-141980 Dubna, Russia
¹²Duke University, Durham, North Carolina 27708, USA
¹³Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
¹⁴University of Florida, Gainesville, Florida 32611, USA
¹⁵Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy
¹⁶University of Geneva, CH-1211 Geneva 4, Switzerland
¹⁷Glasgow University, Glasgow G12 8QQ, United Kingdom
¹⁸Harvard University, Cambridge, Massachusetts 02138, USA
¹⁹Hiroshima University, Higashi-Hiroshima 724, Japan
²⁰University of Illinois, Urbana, Illinois 61801, USA
²¹The Johns Hopkins University, Baltimore, Maryland 21218, USA
²²Institut für Experimentelle Kernphysik, Universität Karlsruhe, 76128 Karlsruhe, Germany
²³Center for High Energy Physics, Kyungpook National University, Taegu 702-701, Korea; Seoul National University, Seoul 151-742, Korea; and SungKyunKwan University, Suwon 440-746, Korea
²⁴Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
²⁵University College London, London WC1E 6BT, United Kingdom
²⁶Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
²⁷University of Michigan, Ann Arbor, Michigan 48109, USA
²⁸Michigan State University, East Lansing, Michigan 48824, USA
²⁹Institution for Theoretical and Experimental Physics, ITEP, Moscow 117259, Russia
³⁰University of New Mexico, Albuquerque, New Mexico 87131, USA
³¹Northwestern University, Evanston, Illinois 60208, USA
³²The Ohio State University, Columbus, Ohio 43210, USA
³³Osaka City University, Osaka 588, Japan
³⁴University of Oxford, Oxford OX1 3RH, United Kingdom
³⁵Universita di Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, Italy
³⁶University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
³⁷Istituto Nazionale di Fisica Nucleare, University and Scuola Normale Superiore of Pisa, I-56100 Pisa, Italy
³⁸University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
³⁹Purdue University, West Lafayette, Indiana 47907, USA
⁴⁰University of Rochester, Rochester, New York 14627, USA
⁴¹Rockefeller University, New York, New York 10021, USA
⁴²Instituto Nazionale de Fisica Nucleare, Sezione di Roma, University di Roma I, "La Sapienza," I-00185 Roma, Italy
⁴³Rutgers University, Piscataway, New Jersey 08855, USA
⁴⁴Texas A&M University, College Station, Texas 77843, USA
⁴⁵Texas Tech University, Lubbock, Texas 79409, USA
⁴⁶Institute of Particle Physics, University of Toronto, Toronto M5S 1A7, Canada
⁴⁷Istituto Nazionale di Fisica Nucleare, University of Trieste, Udine, Italy
⁴⁸University of Tsukuba, Tsukuba, Ibaraki 305, Japan
⁴⁹Tufts University, Medford, Massachusetts 02155, USA
⁵⁰Waseda University, Tokyo 169, Japan
⁵¹University of Wisconsin, Madison, Wisconsin 53706, USA
⁵²Yale University, New Haven, Connecticut 06520, USA

We present the first measurement of the A₂ and A₃ angular coefficients of the W boson produced in proton-antiproton collisions. We study W-->enu_e and W-->µnu_µ candidate events produced in association with at least one jet at CDF, during Run Ia and Run Ib of the Tevatron at sqrt(s)=1.8 TeV. The corresponding integrated luminosity was 110 pb^-1. The jet balances the transverse momentum of the W and introduces QCD effects in W boson production. The extraction of the angular coefficients is achieved through the direct measurement of the azimuthal angle of the charged lepton in the Collins-Soper rest-frame of the W boson. The angular coefficients are measured as a function of the transverse momentum of the W boson. The electron, muon, and combined results are in good agreement with the standard model prediction, up to order alpha_s² in QCD.

©2006 The American Physical Society

View Cart	Download Citation
MyScitation	Print View