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19 April 2024

» pubmed » pmid12570539

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Photoproduction of the omega meson on the proton at large momentum transfer
M Battaglieri ; M Brunoldi ; R De Vita ; J M Laget ; M Osipenko ; M Ripani ; M Taiuti ; G Adams ; M J Amaryan ; E Anciant ; M Anghinolfi ; D S Armstrong ; B Asavapibhop ; G Asryan ; G Audit ; T Auger ; H Avakian ; S Barrow ; K Beard ; M Bektasoglu ; B L Berman ; A Bersani ; N Bianchi ; A S Biselli ; S Boiarinov ; S Bouchigny ; R Bradford ; D Branford ; W J Briscoe ; W K Brooks ; V D Burkert ; J R Calarco ; G P Capitani ; D S Carman ; B Carnahan ; A Cazes ; C Cetina ; P L Cole ; A Coleman ; D Cords ; P Corvisiero ; D Crabb ; H Crannell ; J P Cummings ; E DeSanctis ; P V Degtyarenko ; R Demirchyan ; H Denizli ; L Dennis ; K V Dharmawardane ; K S Dhuga ; C Djalali ; G E Dodge ; D Doughty ; P Dragovitsch ; M Dugger ; S Dytman ; M Eckhause ; H Egiyan ; K S Egiyan ; L Elouadrhiri ; L Farhi ; R J Feuerbach ; J Ficenec ; T A Forest ; A P Freyberger ; V Frolov ; H Funsten ; S J Gaff ; M Gai ; M Garcon ; G Gavalian ; S Gilad ; G P Gilfoyle ; K L Giovanetti ; E Golovach ; K Griffioen ; M Guidal ; M Guillo ; L Guo ; V Gyurjyan ; C Hadjidakis ; D Hancock ; J Hardie ; D Heddle ; F W Hersman ; K Hicks ; R S Hicks ; M Holtrop ; C E Hyde-Wright ; M M Ito ; K Joo ; J H Kelley ; M Khandaker ; W Kim ; A Klein ; F J Klein ; A V Klimenko ; M Klusman ; M Kossov ; L H Kramer ; Y Kuang ; S E Kuhn ; J Lachniet ; D Lawrence ; M Lucas ; K Lukashin ; R W Major ; J J Manak ; C March ; S McAleer ; J McCarthy ; J W C McNabb ; B A Mecking ; M D Mestayer ; C A Meyer ; K Mikhailov ; M Mirazita ; R Miskimen ; V Mokeev ; S Morrow ; M U Mozer ; V Muccifora ; J Mueller ; G S Mutchler ; J Napolitano ; S O Nelson ; S Niccolai ; B B Niczyporuk ; R A Niyazov ; M Nozar ; J T O’Brien ; A K Opper ; G Peterson ; S A Philips ; N Pivnyuk ; D Pocanic ; O Pogorelko ; E Polli ; B M Preedom ; J W Price ; D Protopopescu ; L M Qin ; B A Raue ; A R Reolon ; G Riccardi ; G Ricco ; B G Ritchie ; F Ronchetti ; P Rossi ; D Rowntree ; P D Rubin ; K Sabourov ; C Salgado ; V Sapunenko ; R A Schumacher ; V S Serov ; A Shafi ; Y G Sharabian ; J Shaw ; A V Skabelin ; E S Smith ; T Smith ; L C Smith ; D I Sober ; M Spraker ; A Stavinsky ; S Stepanyan ; P Stoler ; S Taylor ; D J Tedeschi ; L Todor ; U Thoma ; R Thompson ; M F Vineyard ; A V Vlassov ; K Wang ; L B Weinstein ; H Weller ; D P Weyg ; C S Whisnant ; E Wolin ; M Wood ; A Yegneswaran ; J Yun ; B Zhang ; J Zhao ; Z Zhou ; ;
Date:	17 Jan 2003
Journal:	Phys Rev Lett, 90 (2), 022002
Abstract:	The differential cross section, dsigma/dt, for omega meson exclusive photoproduction on the proton above the resonance region (2.6<W<2.9 GeV) was measured up to a momentum transfer -t=5 GeV2 using the CLAS detector at Jefferson Laboratory. The omega channel was identified by detecting a proton and pi(+) in the final state and using the missing mass technique. While the low momentum transfer region shows the typical diffractive pattern expected from Pomeron and Reggeon exchange, at large -t the differential cross section has a flat behavior. This feature can be explained by introducing quark interchange processes in addition to the QCD-inspired two-gluon exchange.
Source:	PubMed, pmid12570539
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