Measurement of the cross section for W-boson production in association with jets in pp¯ collisions at s=1.96  TeV

T. Aaltonen,J. Adelman,T. Akimoto, M. G. Albrow,B. Alvarez Gonz,O. Gonz,I. Gorelov,A. T. Goshaw, K. Goulianos,A. Gresele,S. Grinstein,C. Grosso-Pilcher, A. Apresyan,T. Arisawa,A. Artikov,W. Ashmanskas,A. Attal,A. Aurisano, F. Azfar,P. Azzi-Bacchetta, P. Azzurri, N. Bacchetta,W. Badgett, A. Barbaro-Galtieri,V. Barnes,B. Barnett,S. Baroiant,V. Bartsch,G. Bauer,P.-H. Beauchemin, F. Bedeschi,P. Bednar,S. Behari, G. Bellettini, J. Bellinger, A. Belloni,D. Benjamin, A. Beretvas,J. Beringer, T. Berry,A. Bhatti,M. Binkley, D. Bisello,I. Bizjak,R. Blair,C. Blocker, B. Blumenfeld, A. Bocci, A. Bodek, V. Boisvert, G. Bolla,A. Bolshov,D. Bortoletto,J. Boudreau, A. Boveia, B. Brau,A. Bridgeman, L. Brigliadori, C. Bromberg,E. Brubaker, J. Budagov,H. Budd,S. Budd, K. Burkett,G. Busetto, P. Bussey,A. Buzatu,K. Byrum,S. Cabrera,M. Campanelli, M. Campbell, F. Canelli, A. Canepa, D. Carlsmith,R. Carosi,S. Carrillo,S. Carron, B. Casal,M. Casarsa,A. Castro,P. Catastini, D. Cauz, M. Cavalli-Sforza,A. Cerri, L. Cerrito,S. Chang,Y. Chen, M. Chertok, G. Chiarelli,G. Chlachidze, F. Chlebana,K. Cho,D. Chokheli,J. Chou, G. Choudalakis,S. Chuang,K. Chung,W. Chung,Y. Chung, C. Ciobanu,M. Ciocci, A. Clark,D. Clark,G. Compostella,M. Convery,J. Conway,B. Cooper, K. Copic,M. Cordelli, G. Cortiana, F. Crescioli,C. Almenar,J. Cuevas, R. Culbertson, J. Cully,D. Dagenhart,M. Datta,T. Davies,P. de Barbaro,S. De Cecco, A. Deisher,G. De Lentdecker,G. De Lorenzo,M. Dell’Orso, L. Demortier,J. Deng, M. Deninno,D. De Pedis,P. Derwent,G. Di Giovanni, C. Dionisi,B. Di Ruzza, J. Dittmann,M. D’Onofrio, S. Donati,P. Dong, J. Donini, T. Dorigo,S. Dube, J. Efron, R. Erbacher, D. Errede, S. Errede, R. Eusebi,H. Fang,S. Farrington, W. Fedorko, R. Feild, M. Feindt,J. Fernandez,C. Ferrazza, R. Field, G. Flanagan,R. Forrest,S. Forrester,M. Franklin, J. Freeman, I. Furic, M. Gallinaro,J. Galyardt, F. Garberson,J. Garcia, A. Garfinkel,H. Gerberich, D. Gerdes, S. Giagu,V. Giakoumopolou, P. Giannetti,K. Gibson,J. Gimmell, C. Ginsburg, N. Giokaris,M. Giordani,P. Giromini, M. Giunta,V. Glagolev,D. Glenzinski,M. Gold,N. Goldschmidt,A. Golossanov,G. Gomez,G. Gomez-Ceballos, M. Goncharov,O. González,I. Gorelov,A. Goshaw, K. Goulianos, A. Gresele,S. Grinstein,C. Grosso-Pilcher,R. Group, U. Grundler,J. da Costa,Z. Gunay-Unalan, C. Haber,K. Hahn,S. Hahn, E. Halkiadakis,A. Hamilton,B.-Y. Han,J. Han,R. Handler,F. Happacher, K. Hara,D. Hare,M. Hare, S. Harper, R. Harr,R. Harris, M. Hartz, K. Hatakeyama, J. Hauser,C. Hays,M. Heck,A. Heijboer,B. Heinemann,J. Heinrich,C. Henderson,M. Herndon,J. Heuser, S. Hewamanage, D. Hidas,C. Hill, D. Hirschbuehl, A. Hocker,S. Hou, M. Houlden, S.-C. Hsu,B. Huffman, R. Hughes, U. Husemann, J. Huston, J. Incandela, G. Introzzi,M. Iori, A. Ivanov,B. Iyutin, E. James,B. Jayatilaka,D. Jeans,E. Jeon, S. Jindariani,W. Johnson,M. Jones,K. Joo,S. Jun,J. Jung,T. Junk, T. Kamon,D. Kar, P. Karchin,Y. Kato,R. Kephart,U. Kerzel, V. Khotilovich, B. Kilminster,D. Kim,H. Kim,J. Kim,M. Kim, S. Kim,Y. Kim, N. Kimura, L. Kirsch,S. Klimenko, M. Klute,B. Knuteson,B. Ko,S. Koay,K. Kondo, D. Kong,J. Konigsberg, A. Korytov,A. Kotwal, J. Kraus,M. Kreps, J. Kroll, N. Krumnack, M. Kruse, V. Krutelyov,T. Kubo, S. Kuhlmann, T. Kuhr,N. Kulkarni,Y. Kusakabe,S. Kwang,A. Laasanen,S. Lai,S. Lami,S. Lammel, M. Lancaster, R. Lander,K. Lannon, A. Lath, G. Latino, I. Lazzizzera, T. LeCompte,J. Lee,Y. Lee,S. Lee,R. Lefèvre, N. Leonardo,S. Leone,S. Levy, J. Lewis,C. Lin, J. Linacre,M. Lindgren,E. Lipeles,A. Lister,D. Litvintsev,T. Liu,N. Lockyer, A. Loginov,M. Loreti, L. Lovas,R.-S. Lu,D. Lucchesi,J. Lueck, C. Luci, P. Lujan,P. Lukens, G. Lungu, L. Lyons, J. Lys,R. Lysak, E. Lytken,P. Mack,D. MacQueen,R. Madrak, K. Maeshima, K. Makhoul, T. Maki, P. Maksimovic, S. Malde,S. Malik, G. Manca,A. Manousakis,F. Margaroli,C. Marino,A. Martin,M. Martin,V. Martin,M. Martínez,R. Martínez-Ballarín,T. Maruyama,P. Mastrandrea, T. Masubuchi,M. Mattson, P. Mazzanti, K. McFarland,P. McIntyre,R. McNulty,A. Mehta,P. Mehtala,S. Menzemer, A. Menzione, P. Merkel, C. Mesropian, A. Messina, T. Miao,N. Miladinovic,J. Miles,R. Miller, C. Mills,M. Milnik,A. Mitra, G. Mitselmakher,H. Miyake,S. Moed,N. Moggi,C. Moon,R. Moore,M. Morello,P. Fernandez, J. Mülmenstädt, A. Mukherjee,Th. Muller,R. Mumford,P. Murat,M. Mussini, J. Nachtman,Y. Nagai,A. Nagano,J. Naganoma, K. Nakamura, I. Nakano, A. Napier,V. Necula, C. Neu, M. Neubauer,J. Nielsen, L. Nodulman, M. Norman,O. Norniella, E. Nurse,S. Oh,Y. Oh,I. Oksuzian,T. Okusawa,R. Oldeman, R. Orava,K. Osterberg,S. Griso,C. Pagliarone,E. Palencia,V. Papadimitriou, A. Papaikonomou, A. Paramonov,B. Parks,S. Pashapour,J. Patrick, G. Pauletta, M. Paulini, C. Paus, D. Pellett, A. Penzo,T. Phillips,G. Piacentino, J. Piedra,L. Pinera,K. Pitts, C. Plager,L. Pondrom,X. Portell,O. Poukhov,N. Pounder,F. Prakoshyn,A. Pronko,J. Proudfoot,F. Ptohos, G. Punzi, J. Pursley, J. Rademacker,A. Rahaman,V. Ramakrishnan,N. Ranjan, I. Redondo,B. Reisert, V. Rekovic, P. Renton, M. 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PHYSICAL REVIEW D(2008)

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摘要
We present a measurement of the cross section for W-boson production in association with jets in p (p) over bar collisions at root s =1.96 TeV. The analysis uses a data sample corresponding to an integrated luminosity of 320 pb(-1) collected with the CDF II detector. W bosons are identified in their electron decay channel and jets are reconstructed using a cone algorithm. For each W+>= n-jet sample (n=1-4) we measure the differential cross section d sigma(p (p) over bar -> W+>= n-jet)/dE(T)(nth-jet)xB(W -> e nu) with respect to the transverse energy E-T of the nth-highest E-T jet above 20 GeV, and the total cross section sigma(p (p) over bar -> W+>= n-jet;E-T(nth-jet)> 25 GeV)xB(W -> e nu), for a restricted W -> e nu decay phase space. The cross sections, corrected for all detector effects, can be directly compared to particle level W+jet(s) predictions. We present here comparisons to leading order and next-to-leading order predictions.
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