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Diffractive dijet cross sections in photoproduction at HERA

Title:	Diffractive dijet cross sections in photoproduction at HERA
Authors:	Breitweg J; Derrick M; Krakauer D; Magill S; Mikunas T; Musgrave B; Repond J; Stanek R; Talaga RL; Yoshida R; Zhang H; Mattingly MCK; Anselmo F; Antonioli P; Bari G; Basile M; Bellagamba L; Boscherini D; Bruni A; Bruni G; Romeo GC; Castellini G; Cifarelli L; Cindolo F; Contin A; Coppola N; Corradi M; De Pasquale S; Giusti P; Iacobucci G; Laurenti G; Levi G; Margotti A; Massam T; Nania R; Palmonari F; Pesci A; Polini A; Satorelli G; Garcia YZ; Zichichi A; Amelung C; Bornheim A; Brock I; Coboken E; Crittenden J; Deffner R; Eckert M; Grothe M; Hartmann H; Heinloth K; Heinz L; Hilger E; Jakob HP; Kappes A; Katz UF; Kerger R; Paul E; Pfeiffer M; Stamm J; Wieber H; Bailey DS; Campbell Robson S; Cottingham WN; Foster B; Hall Wilton R; Heath GP; Heath HF; McFall JD; Piccioni D; Roff DG; Tapper RJ; Ayad R; Capua M; Iannotti L; Schioppa M; Susinno G; Kim JY; Lee JH; Lim LT; Pac MY; Caldwell A; Cartiglia N; Jing Z; Liu W; Mellado B; Parsons JA; Ritz J; Sampson S; Sciulli F; Straub PB; Zhu Q; Borzemski P; Chwastowski J; Eskreys A; Figiel J; Klimek K; Przybycien MB; Zamiejski L; Adamczyk L; Bedaarek B; Bukowy M; Czermak AM; Jelen K; Kisielewska D; Kowalski T; Przybycien M; Rulikowska Zarebska E; Suszycki L; Zajac J; Dulinski Z; Kotanskii A; Abbiendi G; Bauerdick LAT; Behrens U; Beier H; Bienlein JK; Desler K; Drews G; Fricke U; Gialas I; Goebel F; Gottlicher P; Graciani R; Haas T; Hain W; Hasell D; Hebbel E; Johnson KF; Kasemann M; Koch W; Kotz U; Kowalski H; Lindemann L; Lohr B; Milewski J; Milite M; Monteiro T; Ng JST; Notz D; Park IH; Pellegrino A; Pelucchi F; Piotrzkowski K; Rohde M; Roldan J; Ryan JJ; Savin AA; Schneekloth U; Schwarzer O; Selonke F; Stonjek S; Surrow B; Tassi E; Westphal D; Wolf G; Wollmer U; Youngman C; Zeuner W; Burow BD; Coldewey C; Grabosch HJ; Meyer A; Schlenstedt S; Barbagli G; Gallo E; Pelfer P; Maccarrone G; Votano L; Bamberger A; Eisenhardt S; Markun P; Raach H; Trefzger T; Wolfle S; Bromley JT; Brook NH; Bussey PJ; Doyle AT; Macdonald N; Saxon DH; Sinclair LE; Skillicorn IO; Strickland E; Waugh R; Bohnet I; Gendner N; Holm U; Meyer Larsen A; Salehi H; Wick K; Gladilin LK; Horstmann D; Kcira D; Klanner R; Lohrmann E; Poelz G; Schott W; Zetsche F; Bacon TC; Butterworth I; Cole JE; Howell G; Lamberti L; Long KR; Miller DB; Pavel N; Prinias A; Sedgbeer JK; Sideris D; Walker R; Mallik T; Wang SM; Wu JT; Cloth P; Filges D; Fleck JI; Ishii T; Kuze M; Suzuki I; Tokushuku K; Yamada S; Yaqmauchi K; Yamazaki Y; Hong SJ; Lee SB; Nam SW; Park SK; Barreiro F; Fernandez JP; Garcia G; Glasman C; Hernandez JM; Hervas L; Labarga L; Martinez M; del Peso J; Puga J; Terron J; de Troconiz JF; Corriveau F; Hanna DS; Hartmaan J; Hung LW; Murray WN; Ochs A; Riveline M; Stairs DG; St Laurent M; Ullmann R; Tsurugai T; Bashkirov V; Dolgoshein BA; Stifutkin A; Bashindzhagyan GL; Ermolov PF; Golubkov YA; Khein LA; Korotkova NA; Korzhavina IA; Kuzmin VA; Lukina OY; Proskuryakov AS; Shcheglova LM; Solomin AN; Zotkin SA; Bokel C; Botje M; Brummer N; Engelen J; Koffeman E; Kooijman P; van Sighem A; Tiecke E; Tuning N; Verkerke W; Vossebeld J; Wiggers L; de Wolf E; Acosta D; Bylsma B; Durkin LS; Gilmore J; Ginsburg CM; Kim CL; Ling TY; Nylander P; Romanowski TA; Blaikley HE; Cashmore RJ; Cooper Sarkar AM; Devenish RCE; Edmonds JK; Grosse Knetter J; Harnew N; Nath C; Noyes VA; Quadt A; Ruske O; Tickner JR; Walczak R; Waters DS; Bertolin A; Dal Corso F; Dosselli U; Limentani S; Morandin M; Posocco M; Stanco L; Voci C; Bulmahn J; Oh BY; Okrasinski JR; Toothacker WS; Whitmore JJ; D'Agostini G; Marini G; Nigro A; Raso M; Hart JC; McCubbin NA; Shah TP; Epperson D; Heusch C; Rahn JT; Sadrozinski HFW; Seiden A; Wichmann R; Williams DC; Abramowicz H; Briskin G; Dagan S; Kananov S; Levy A; Abe T; Fusayasu T; Inuzuka M; Nagano K; Umemori K; Yamashita T; Hamatsu R; Hirose T; Homma K; Kitamura S; Matsushita T; Arneodo T; Cirio R; Costa M; Ferrero MI; Maselli S; Monaco V; Peroni C; Petrucci TC; Ruspa M; Sacchi R; Solano A; Staiano A; Dardo M; Bailey DC; Fagerstroem CP; Galea R; Hartner GF; Joe KK; Levman GM; Martin JF; Orr RS; Polenz S; Sabetfakhri A; Simmons D; Teuscher RJ; Butterworth JM; Catterall CD; Hayes ME; Jones TW; Lane JB; Saunders RL; Sutton MR; Wing M; Ciborowski J; Grzelak G; Kasprzak M; Nowak RJ; Pawlak JM; Paylak R; Tymieniecka T; Wroblewski AK; Zakrzewski JA; Zarnecki AF; Adamus M; Deppe O; Eisenberg Y; Hochman D; Karshon U; Badgett WF; Chapin D; Cross R; Dasu S; Foudas C; Loveless RJ; Mattingly S; Reeder DD; Smith WH; Vaiciulis A; Wodarczyk M; Deshpande A; Dhawan S; Hughes VW; Bhadra S; Frisken WR; Khakzad M; Schmidke WB; GARFAGNINI, ALBERTO; BRUGNERA, RICCARDO; CARLIN, ROBERTO; STROILI, ROBERTO
Contributors:	Breitweg, J; Derrick, M; Krakauer, D; Magill, S; Mikunas, T; Musgrave, B; Repond, J; Stanek, R; Talaga, Rl; Yoshida, R; Zhang, H; Mattingly, Mck; Anselmo, F; Antonioli, P; Bari, G; Basile, M; Bellagamba, L; Boscherini, D; Bruni, A; Bruni, G; Romeo, Gc; Castellini, G; Cifarelli, L; Cindolo, F; Contin, A; Coppola, N; Corradi, M; De Pasquale, S; Giusti, P; Iacobucci, G; Laurenti, G; Levi, G; Margotti, A; Massam, T; Nania, R; Palmonari, F; Pesci, A; Polini, A; Satorelli, G; Garcia, Yz; Zichichi, A; Amelung, C; Bornheim, A; Brock, I; Coboken, E; Crittenden, J; Deffner, R; Eckert, M; Grothe, M; Hartmann, H; Heinloth, K; Heinz, L; Hilger, E; Jakob, Hp; Kappes, A; Katz, Uf; Kerger, R; Paul, E; Pfeiffer, M; Stamm, J; Wieber, H; Bailey, D; Campbell Robson, S; Cottingham, Wn; Foster, B; Hall Wilton, R; Heath, Gp; Heath, Hf; Mcfall, Jd; Piccioni, D; Roff, Dg; Tapper, Rj; Ayad, R; Capua, M; Iannotti, L; Schioppa, M; Susinno, G; Kim, Jy; Lee, Jh; Lim, Lt; Pac, My; Caldwell, A; Cartiglia, N; Jing, Z; Liu, W; Mellado, B; Parsons, Ja; Ritz, J; Sampson, S; Sciulli, F; Straub, Pb; Zhu, Q; Borzemski, P; Chwastowski, J; Eskreys, A; Figiel, J; Klimek, K; Przybycien, Mb; Zamiejski, L; Adamczyk, L
Publication Year:	1998
Collection:	Padua Research Archive (IRIS - Università degli Studi di Padova)
Description:	Differential dijet cross sections have been measured with the ZEUS detector for photoproduction events in which the hadronic final state containing the jets is separated with respect to the outgoing proton direction by a large rapidity gap. The cross section has been measured as a function of the fraction of the photon (κγ OBS) and pomeron (β OBS) momentum participating in the production of the dijet system. The observed κγ OBS dependence shows evidence for the presence of a resolved- as well as a direct-photon component. The measured cross section da/dβ OBS increases as β OBS increases indicating that there is a sizeable contribution to dijet production from those events in which a large fraction of the pomeron momentum participates in the hard scattering. These cross sections and the ZEUS measurements of the diffractive structure function can be described by calculations based on parton densities in the pomeron which evolve according to the QCD evolution equations and include a substantial hard momentum component of gluons in the pomeron.
Document Type:	article in journal/newspaper
Language:	English
Relation:	info:eu-repo/semantics/altIdentifier/wos/WOS:000075601600003; volume:5; firstpage:41; lastpage:56; numberofpages:16; journal:THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS; https://hdl.handle.net/11577/2466991
DOI:	10.1007/s100520050246
Availability:	https://hdl.handle.net/11577/2466991; https://doi.org/10.1007/s100520050246
Rights:	info:eu-repo/semantics/openAccess ; license:Altro ; license uri:other-oa
Accession Number:	edsbas.3DCAEA31
Database:	BASE