Measurement of the cross section for prompt isolated diphoton production in p(p)over-bar collisions at root s=1.96 TeV

T Aaltonen,B Alvarez Gonzalez,S Amerio, D Amidei, A Anastassov, A Annovi, J Antos, G Apollinari,J A Appel, A Apresyan,T Arisawa,A Artikov,J Asaadi,W Ashmanskas,B Auerbach,A Aurisano, F Azfar,W Badgett, A Barbarogaltieri,V E Barnes,Bradley P Barnett,P Barria,P Bartos,M Bauce, G Bauer, F Bedeschi,D Beecher,S Behari, G Bellettini,J Bellinger,D Benjamin, A Beretvas,A Bhatti,M Binkley, D Bisello, I Bizjak,K R Bland,B Blumenfeld, A Bocci, A Bodek,D Bortoletto,J Boudreau, A Boveia, B Brau, L Brigliadori,A Brisuda,C Bromberg,E Brucken,M Bucciantonio,J Budagov,H S Budd,S Budd, K Burkett,G Busetto, P Bussey,A Buzatu,C Calancha,S Camarda,M Campanelli,Moray J Campbell,F Canelli,A Canepa,B Carls, D Carlsmith,R Carosi,S Carrillo,S Carron,B Casal, M Casarsa, Anthony J Castro,P Catastini, D Cauz,V Cavaliere, M Cavallisforza,A Cerri, L Cerrito,Y C Chen, M Chertok, G Chiarelli,G Chlachidze, F Chlebana,Kiduck Cho,D Chokheli,J P Chou,W H Chung,Y S Chung,C I Ciobanu,M A Ciocci, A Clark,G Compostella,M R Convery,J Conway,M Corbo,M Cordelli,C A Cox,D C Cox, F Crescioli,C Cuenca Almenar,Javier Cuevas,R Culbertson,D Dagenhart, N D Ascenzo,M Datta,P De Barbaro,S De Cecco,G De Lorenzo,M Dell Orso, C Deluca, L Demortier,Jingen Deng, M Deninno,F Devoto, M D Errico,A Di Canto,B Di Ruzza,J R Dittmann,M D Onofrio, S Donati,P Dong,M Dorigo,T Dorigo,K Ebina,A Elagin,A Eppig, R Erbacher, D Errede, S Errede,N Ershaidat, R Eusebi,Hungchi Fang,Sinead Farrington, M Feindt,J P Fernandez,C Ferrazza, R D Field, G Flanagan,R D Forrest,M Franklin,Jim Freeman,Yasunobu Funakoshi, I Furic, M Gallinaro,J Galyardt,Jorgearmando Benitez Garcia,A F Garfinkel,P Garosi,H Gerberich,E Gerchtein, S Giagu, V Giakoumopoulou, P Giannetti,Kevin F Gibson,C M Ginsburg, N Giokaris,P Giromini,M Giunta, G Giurgiu,V Glagolev,D Glenzinski,M Gold, D Goldin,N Goldschmidt,A Golossanov, G Gomez,G Gomezceballos,M Goncharov,O Gonzalez,I Gorelov, A T Goshaw, K Goulianos,A Gresele,S Grinstein,C Grossopilcher,J Guimaraes Da Costa,Z Gunayunalan,C Haber,Songyop Hahn, E Halkiadakis,A Hamaguchi,J Y Han,F Happacher, K Hara,D Hare,M Hare, R F Harr,Kinta Hatakeyama,C Hays,M Heck,J Heinrich,M Herndon, S Hewamanage, D Hidas,A Hocker,William E Hopkins, D J Horn,S Z Shalhout,R E Hughes,M Hurwitz,U Husemann,N Hussain,M S Hussein,J Huston, G Introzzi,M Iori,Andrew Ivanov, E James,D Jang,B Jayatilaka,Eunyi Jeon,Manoj Jha, S Jindariani,W N Johnson,Michael A Jones,K K Joo,Sungik Jun,T R Junk,T Kamon, P E Karchin,Y Kato,W Ketchum,J Keung, V Khotilovich, B Kilminster,Dongmin Kim,Hyo Sung Kim,Jong Eun Kim,Myunghoi Kim,Sangwook Kim,Yoonjin Kim, N Kimura,M H Kirby,S Klimenko,K Kondo,Doosik Kong,J Konigsberg, A V Kotwal,M Kreps, J Kroll,D Krop, N Krumnack, M Kruse,V Krutelyov, T Kuhr, M Kurata,S Kwang, A T Laasanen,S Lami,S Lammel,M Lancaster,R Lander,K Lannon, A Lath,G Latino,I Lazzizzera, T Lecompte,Euisin Lee,H S Lee,J S Lee, Seongpoong Lee,S Leo, S Leone,J P Lewis,C J Lin, J Linacre,M Lindgren, E Lipeles,A Lister,D O Litvintsev,Chang Liu,Qing Liu,Tungchang Liu,S Lockwitz,N S Lockyer, A Loginov,D Lucchesi,J Lueck, P Lujan,P Lukens, G Lungu,J Lys,R Lysak,R Madrak, K Maeshima,K Makhoul, P Maksimovic, S Malik,G Manca, A Manousakiskatsikakis,F Margaroli, C P Marino,M Martinez,R Martinezballarin, P Mastrandrea,M Mathis,Mark P Mattson,P Mazzanti,K S Mcfarland,P Mcintyre,R Mcnulty,Andrew Mehta,P Mehtala, A Menzione, C Mesropian, T Miao,D Mietlicki,A P Mitra,Hiroyuki Miyake,S Moed,N Moggi,M N Mondragon, Changbae Moon,R Moore,M J Morello,J Morlock,P Movilla Fernandez, A Mukherjee,Th Muller,P Murat,M Mussini, J Nachtman,Y Nagai,J Naganoma, I Nakano,A Napier,J Nett, C Neu,M S Neubauer,J Nielsen, L Nodulman,O Norniella, E Nurse,L Oakes,S H Oh,Yeonmok Oh,I Oksuzian,T Okusawa, R Orava,L Ortolan,S Pagan Griso,C Pagliarone,E Palencia,V Papadimitriou, A A Paramonov,J Patrick,G Pauletta, M Paulini, C Paus,D Pellett, A Penzo,T J Phillips,G Piacentino,E Pianori,J Pilot,K Pitts,C Plager,L Pondrom,K Potamianos,O Poukhov,A Pranko,F Prokoshin,F Ptohos, E Pueschel, G Punzi,J Pursley,A Rahaman,V Ramakrishnan,N Ranjan, I Redondo,P Renton,Maria Rescigno,F Rimondi,L Ristori, A D Robson, T Rodrigo,T Rodriguez,Eric Rogers, S Rolli,R Roser,Michel J Rossi,F Rubbo,F Ruffini,A Ruiz,J Russ,V Rusu,A Safonov,W K Sakumoto,Yoshinori Sakurai,L Santi,L Sartori, Koji Sato, V L Saveliev, A Savoynavarro,P Schlabach,Ann Marie Schmidt,E E Schmidt,Martin U Schmidt, M Schmitt, T Schwarz, L Scodellaro, A Scribano, F Scuri,A Sedov, S Seidel, Y Seiya,A Semenov,F Sforza, A Sfyrla, D Sgalaberna,S Z Shalhout,T Shears,P F Shepard, M Shimojima,S Shiraishi, M Shochet,I Shreyber,A Simonenko,P Sinervo,A N Sissakian,K Sliwa, Jonathan Smith,F D Snider, A Soha, S Somalwar,V Sorin, P Squillacioti,M Stancari, M Stanitzki,R St Denis,B Stelzer, O Stelzerchilton,D Stentz,J Strologas,G L Strycker,Y Sudo,A Sukhanov,I Suslov,K Takemasa,Yasuhiro Takeuchi,Jinshan Tang,M Tecchio,Pingkun Teng,J Thome,G A Thompson,E Thomson, P Ttitoguzman, S Tkaczyk, D Toback,S Tokar,K Tollefson,T Tomura,D Tonelli,S Torre,D Torretta,P Totaro,M Trovato,Yongqiang Tu, F Ukegawa,S Uozumi,A Varganov,F Vazquez,G Velev,C Vellidis,Maria Teresa Castan I Vidal, I Vila,R Vilar, J Vizan,M Vogel,G Volpi,P Wagner,R L Wagner,T Wakisaka,R Wallny, S M Wang,A Warburton, D Waters,M Weinberger,W C Wester,B Whitehouse, D Whiteson,A B Wicklund, E Wicklund,S Wilbur,F Wick,H H Williams,J A Wilson,P Wilson, B L Winer,P Wittich,S Wolbers,H Wolfe,T Wright,Xifeng Wu,Zhigang Wu, K Yamamoto, J Yamaoka,Taehyun Yang,Uengcheng Yang,Yanlong Yang,W M Yao,G P Yeh, K Yi,J Yoh, K Yorita,Toshimichi Yoshida, G B Yu, I Yu,Shicang Yu,Janggn Yun, A Zanetti,Yan Zeng,S Zucchelli,U K Yang,S Y Jun, S W Lee,D J Kong, Xiuxian Wu,D H Kim,Takayuki Yoshida,M K Jha,Y D Oh,S R Hahn,Anna Schmidt, Qipeng Liu,Miriam Rossi,J C Yun,M J Kim,Yinfang Tu,Zhipeng Wu,Y C Yang,S B Kim,C S Moon

PHYSICAL REVIEW D（2011）

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摘要

This article reports a measurement of the production cross section of prompt isolated photon pairs in proton-antiproton collisions at root s = 1.96 TeV using the CDF II detector at the Fermilab Tevatron collider. The data correspond to an integrated luminosity of 5.36 fb(-1). The cross section is presented as a function of kinematic variables sensitive to the reaction mechanisms. The results are compared with three perturbative QCD calculations: (1) a leading-order parton shower Monte Carlo, (2) a fixed next-to-leading-order calculation and (3) a next-to-leading-order/next-to-next-to-leading-log resummed calculation. The comparisons show that, within their known limitations, all calculations predict the main features of the data, but no calculation adequately describes all aspects of the data.

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monte carlo,cdf,cross section,high energy physics,reaction mechanism

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