Measurement Of The Associated Gamma+Mu(+/-) Production Cross Section In P(P)Over-Bar Collisions At Root S=1.8 Tev

F. Abe, M. G. Albrow,S. R. Amendolia, D. Amidei, J. Antos,C. Anway-Wiese, G. Apollinari, H. Areti, M. Atac,P. Auchincloss, F. Azfar,P. Azzi, N. Bacchetta,W. Badgett,M. Bailey, J. Bao,P. de Barbaro, A. Barbaro-Galtieri,V. Barnes, B. Barnett, P. Bartalini, G. Bauer,T. Baumann, F. Bedeschi,S. Behrends, S. Belforte, G. Bellettin, J. Bellinger, D. Benjamin,J. Benlloch,J. Bensinger,D. Benton, A. Beretvas,J. Berge,S. Bertolucci, A. Bhatti,K. Biery,M. Binkley, F. Bird, D. Bisello,R. Blair,C. Blocker,A. Bodek,W. Bokhari,V. Bolognesi, D. Bortoletto,C. Boswell,T. Boulos,G. Brandenburg,C. Bromberg,E. Buckley-Geer,H. Budd, K. Burkett,G. Busetto,A. Byon-Wagner,K. Byrum,J. Cammerata,C. Campagnari,M. Campbell,A. Caner,W. Carithers, D. Carlsmith, A. Castro,Y. Cen,F. Cervelli,H. Chao,J. Chapman,M.-T. Cheng, G. Chiarelli,T. Chikamatsu,C. Chiou,L. Christofek, S. Cihangir,A. Clark, M. Cobal, M. Contreras,J. Conway,J. Cooper,M. Cordelli,C. Couyoumtzelis,D. Crane,J. Cunningham,T. Daniels,F. DeJongh,S. Delchamps,S. Dell’Agnello,M. Dell’Orso, L. Demortier,B. Denby, M. Deninno,P. Derwent,T. Devlin,M. Dickson, J. Dittmann, S. Donati,R. Drucker,A. Dunn, K. Einsweiler,J. Elias,R. Ely,E. Engels, S. Eno, D. Errede, S. Errede,Q. Fan,B. Farhat,I. Fiori,B. Flaugher,G. Foster,M. Franklin,M. Frautschi, J. Freeman,J. Friedman, H. Frisch,A. Fry,T. Fuess,Y. Fukui,S. Funaki, G. Gagliardi,S. Galeotti, M. Gallinaro, A. Garfinkel,S. Geer, D. Gerdes, P. Giannetti, N. Giokaris,P. Giromini, L. Gladney,D. Glenzinski,M. Gold,J. Gonzalez, A. Gordon,A. Goshaw, K. Goulianos, H. Grassmann,A. Grewal,L. Groer,C. Grosso-Pilcher, C. Haber,S. Hahn,R. Hamilton,R. Handler,R. Hans, K. Hara,B. Harral,R. Harris,S. Hauger, J. Hauser,C. Hawk,J. Heinrich, D. Cronin-Hennessy, R. Hollebeek,L. Holloway,A. Hölscher,S. Hong,G. Houk,P. Hu,B. Huffman, R. Hughes,P. Hurst, J. Huston, J. Huth,J. Hylen,M. Incagli, J. Incandela,H. Iso,H. Jensen,C. Jessop, U. Joshi,R. Kadel, E. Kajfasz, T. Kamon,T. Kaneko,D. Kardelis,H. Kasha,Y. Kato,L. Keeble,R. Kennedy,R. Kephart,P. Kesten,D. Kestenbaum, R. Keup,H. Keutelian,F. Keyvan,D. Kim,H. Kim, S. Kim,Y. Kim, L. Kirsch,P. Koehn,K. Kondo, J. Konigsberg,S. Kopp, K. Kordas,W. Koska,E. Kovacs,W. Kowald,M. Krasberg, J. Kroll, M. Kruse, S. Kuhlmann,E. Kuns,A. Laasanen,N. Labanca,S. Lammel,J. Lamoureux, T. LeCompte,S. Leone, J. Lewis, P. Limon,M. Lindgren, T. Liss,N. Lockyer,C. Loomis,O. Long,M. Loreti,E. Low,J. Lu,D. Lucchesi,C. Luchini,P. Lukens, J. Lys,P. Maas, K. Maeshima,A. Maghakian, P. Maksimovic, M. Mangano,J. Mansour,M. Mariotti,J. Marriner, A. Martin,J. Matthews,R. Mattingly,P. McIntyre,P. Melese, A. Menzione, E. Meschi,G. Michail,S. Mikamo, M. Miller,R. Miller,T. Mimashi,S. Miscetti,M. Mishina,H. Mitsushio,S. Miyashita,Y. Morita, S. Moulding,J. Mueller, A. Mukherjee,T. Muller,P. Musgrave,L. Nakae, I. Nakano, C. Nelson,D. Neuberger, C. Newman-Holmes, L. Nodulman,S. Ogawa,S. Oh,K. Ohl,R. Oishi,T. Okusawa,C. Pagliarone, R. Paoletti,V. Papadimitriou,S. Pappas,S. Park,J. Patrick, G. Pauletta, M. Paulini,L. Pescara,M. Peters,T. Phillips,G. Piacentino,M. Pillai,R. Plunkett,L. Pondrom,N. Produit,J. Proudfoot,F. Ptohos, G. Punzi,K. Ragan,F. Rimondi, L. Ristori,M. Roach-Bellino,W. Robertson, T. Rodrigo,J. Romano,L. Rosenson, W. Sakumoto, D. Saltzberg, A. Sansoni,V. Scarpine,A. Schindler,P. Schlabach,E. Schmidt,M. Schmidt,O. Schneider,G. Sciacca, A. Scribano,S. Segler, S. Seidel, Y. Seiya,G. Sganos,A. Sgolacchia, M. Shapiro, N. Shaw,Q. Shen,P. Shepard, M. Shimojima, M. Shochet, J. Siegrist,A. Sill, P. Sinervo, P. Singh,J. Skarha, K. Sliwa,D. Smith,F. Snider,L. Song,T. Song, J. Spalding,L. Spiegel,P. Sphicas,L. Stanco, J. Steele,A. Stefanini,K. Strahl, J. Strait, D. Stuart,G. Sullivan, K. Sumorok,R. Swartz,T. Takahashi,K. Takikawa,F. Tartarelli,W. Taylor,P. Teng,Y. Teramoto,S. Tether,D. Theriot,J. Thomas, T. Thomas,R. Thun,M. Timko,P. Tipton,A. Titov, S. Tkaczyk, K. Tollefson,A. Tollestrup,J. Tonnison,J. de Troconiz,J. Tseng,M. Turcotte, N. Turini, N. Uemura, F. Ukegawa, G. Unal,S. van den Brink,S. Vejcik,R. Vidal,M. Vondracek, D. Vucinic,R. Wagner,N. Wainer,R. Walker, C. Wang,G. Wang, J. Wang,M. Wang,Q. Wang, A. Warburton, G. Watts,T. Watts,R. Webb,C. Wei, C. Wendt,H. Wenzel,W. Wester,T. Westhusing, A. Wicklund, E. Wicklund,R. Wilkinson,H. Williams,P. Wilson,B. Winer,J. Wolinski,D. Wu,X. Wu,J. Wyss, A. Yagil, W. Yao,K. Yasuoka,Y. Ye,G. Yeh,P. Yeh,M. Yin, J. Yoh,C. Yosef,T. Yoshida,D. Yovanovitch, I. Yu,J. Yun, A. Zanetti,F. Zetti, L. Zhang,S. Zhang,W. Zhang,S. Zucchelli

PHYSICAL REVIEW D(1999)

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摘要
We present the first measurement of associated direct photon+muon production in hadronic collisions, from a sample of 1.8 TeV collisions recorded with the Collider Detector at Fermilab. Quantum chromodynamics (QCD) predicts that these events are primarily from the Compton scattering process cg-->c gamma, with the final state charm quark producing a muon. Hence this measurement is sensitive to the charm quark content of the proton. The measured cross section of 29+/-9 pb is compared to a leading-order QCD parton shower model as well as a next-to-leading-order QCD calculation. [S0556-2821(99)07121-0].
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