Zγ ∗ production in e + e − interactions at √ s = 183 − 209 GeV The DELPHI Collaboration

J. Abdallah,P. Abreu,W. Adam,P. Adzic, T. Albrecht,R. Alemany-Fernandez,T. Allmendinger,P. P. Allport,U. Amaldi,N. Amapane,S. Amato,E. Anashkin,A. Andreazza,S. Andringa,N. Anjos,P. Antilogus,W-D. Apel,Y. Arnoud,S. Ask,B. Asman,J. E. Augustin,A. Augustinus,P. Baillon,A. Ballestrero,P. Bambade,R. Barbier,D. Bardin,G. J. Barker,A. Baroncelli,M. Battaglia,M. Baubillier,K-H. Becks,M. Begalli,A. Behrmann,E. Ben-Haim,N. Benekos,A. Benvenuti,C. Berat,M. Berggren,D. Bertrand,M. Besancon,N. Besson,D. Bloch,M. Blom,M. Bluj,M. Bonesini,M. Boonekamp,P. S. L. Booth,G. Borisov,O. Botner,B. Bouquet,T. J. V. Bowcock,I. Boyko,M. Bracko,R. Brenner,E. Brodet,P. Bruckman,J. M. Brunet,B. Buschbeck,P. Buschmann,M. Calvi,T. Camporesi,V. Canale,F. Carena,N. Castro,F. Cavallo,M. Chapkin,Ph. Charpentier,P. Checchia,R. Chierici,P. Chliapnikov,J. Chudoba,S. U. Chung,K. Cieslik,P. Collins,R. Contri,G. Cosme,F. Cossutti,M. J. Costa,D. Crennell,J. Cuevas,J. D’Hondt,T. da Silva,W. Da Silva,G. Della Ricca,A. De Angelis,W. De Boer,C. De Clercq,B. De Lotto,N. De Maria,A. De Min,L. de Paula,L. Di Ciaccio,A. Di Simone,K. Doroba,J. Drees,G. Eigen,T. Ekelof,M. Ellert,M. Elsing,M. C. Espirito Santo,G. Fanourakis,D. Fassouliotis,M. Feindt,J. Fernandez,A. Ferrer,F. Ferro,U. Flagmeyer,H. Foeth,E. Fokitis,F. Fulda-Quenzer,J. Fuster,M. Gandelman,C. Garcia,Ph. Gavillet,E. Gazis,R. Gokieli,B. Golob,G. Gomez-Ceballos,P. Goncalves,E. Graziani,G. Grosdidier,K. Grzelak,J. Guy,C. Haag,A. Hallgren,K. Hamacher,K. Hamilton,S. Haug,F. Hauler,V. Hedberg,M. Hennecke,H. Herr,J. Hoffman,S-O. Holmgren, P. J. Holt,M. A. Houlden,J. N. Jackson,G. Jarlskog,P. Jarry,D. Jeans,E. K. Johansson,P. Jonsson,C. Joram,L. Jungermann,F. Kapusta,S. Katsanevas,E. Katsoufis,G. Kernel,B. P. Kersevan,U. Kerzel,B. T. King,N. J. Kjaer,P. Kluit,P. Kokkinias,C. Kourkoumelis,O. Kouznetsov,Z. Krumstein,M. Kucharczyk,J. Lamsa,G. Leder,F. Ledroit,L. Leinonen,R. Leitner,J. Lemonne,V. Lepeltier,T. Lesiak,W. Liebig,D. Liko,A. Lipniacka, J. H. Lopes,J. M. Lopez,D. Loukas,P. Lutz,L. Lyons,J. MacNaughton,A. Malek,S. Maltezos,F. Mandl,J. Marco,R. Marco,B. Marechal,M. Margoni,J-C. Marin,C. Mariotti,A. Markou,C. Martinez-Rivero,J. Masik,N. Mastroyiannopoulos,F. Matorras,C. Matteuzzi,F. Mazzucato,M. Mazzucato,R. Mc Nulty,C. Meroni,E. Migliore,W. Mitaroff,U. Mjoernmark,T. Moa,M. Moch,K. Moenig,R. Monge,J. Montenegro,D. Moraes,S. Moreno,P. Morettini,U. Mueller,K. Muenich,M. Mulders,L. Mundim,W. Murray,B. Muryn,G. Myatt,T. Myklebust,M. Nassiakou,F. Navarria,K. Nawrocki,R. Nicolaidou,M. Nikolenko,A. Oblakowska-Mucha,V. Obraztsov,A. Olshevski,A. Onofre,R. Orava,K. Osterberg,A. Ouraou,A. Oyanguren, M. Paganoni,S. Paiano, J. P. Palacios,H. Palka,Th. D. Papadopoulou,L. Pape,C. Parkes,F. Parodi,U. Parzefall,A. Passeri,O. Passon,L. Peralta,V. Perepelitsa,A. Perrotta,A. Petrolini,J. Piedra,L. Pieri,F. Pierre,M. Pimenta,E. Piotto,T. Podobnik,V. Poireau,M. E. Pol,G. Polok,V. Pozdniakov,N. Pukhaeva,A. Pullia,J. Rames,A. Read,P. Rebecchi,J. Rehn,D. Reid,R. Reinhardt,P. Renton,F. Richard,J. Ridky,M. Rivero,D. Rodriguez,A. Romero, P. Ronchese, P. Roudeau,T. Rovelli,V. Ruhlmann-Kleider,D. Ryabtchikov,A. Sadovsky,L. Salmi,J. Salt,C. Sander,A. Savoy-Navarro,U. Schwickerath,R. Sekulin,M. Siebel,A. Sisakian,G. Smadja,O. Smirnova,A. Sokolov,A. Sopczak,R. Sosnowski,T. Spassov,M. Stanitzki,A. Stocchi,J. Strauss,B. Stugu,M. Szczekowski,M. Szeptycka,T. Szumlak,T. Tabarelli,F. Tegenfeldt,J. Timmermans,L. Tkatchev, M. Tobin,S. Todorovova,B. Tome,A. Tonazzo,P. Tortosa,P. Travnicek,D. Treille,G. Tristram,M. Trochimczuk,C. Troncon,M-L. Turluer,I. A. Tyapkin,P. Tyapkin,S. Tzamarias,V. Uvarov,G. Valenti,P. Van Dam,J. Van Eldik,N. van Remortel, I. Van Vulpen,G. Vegni,F. Veloso,W. Venus,P. Verdier,V. Verzi,D. Vilanova,L. Vitale,V. Vrba,H. Wahlen,A. J. Washbrook,C. Weiser,D. Wicke,J. Wickens,G. Wilkinson,M. Winter,M. Witek,O. Yushchenko,A. Zalewska,P. Zalewski,D. Zavrtanik,V. Zhuravlov,N. I. Zimin,A. Zintchenko,M. Zupan

The European Physical Journal C（2007）

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摘要

Measurements of Zγ production are presented using data collected by the DELPHI detector at centre-of-mass energies ranging from 183 to 209 GeV, corresponding to an integrated luminosity of about 667 pb. The measurements cover a wide range of the possible final state four-fermion configurations: hadronic and leptonic (eeqq̄, μμqq̄, qq̄νν̄), fully leptonic (lll ′+l ′−) and fully hadronic final states (qq̄qq̄, with a low mass qq̄ pair). Measurements of the Zγ cross-section for the various final states have been compared with the Standard Model expectations and found to be consistent within the errors. In addition, a total cross-section measurement of the lll ′+l − cross-section is reported, and found to be in agreement with the prediction of the Standard Model.

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关键词

Invariant Mass,Systematic Uncertainty,Standard Model Prediction,Standard Model Expectation,DELPHI Collaboration

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