Photoproduction of phi (1020) masons on the proton at large momentum transfer

Authors
Anciant, E Auger, T Audit, G Battaglieri, M Laget, JM Marchand, C Adams, GS Amaryan, MJ Anghinolfi, M Armstrong, D Asavapibhop, B Avakian, H Barrow, S Beard, K Bektasoglu, M Berman, BL Bianchi, N Biselli, A Boiarinov, S Briscoe, WJ Brooks, WK Burkert, VD Calarco, JR Capitani, G Carman, DS Carnahan, B Cetina, C Cole, PL Coleman, A Connelly, J Cords, D Corvisiero, P Crabb, D Crannell, H Cummings, J Degtyarneko, PV Dennis, LC De Sanctis, E De Vita, R Dhuga, KS Djalali, C Dodge, GE Doughty, D Dragovitsch, P Dugger, M Dytman, S Efremenko, YV Egiyan, H Egiyan, KS Elouadrhiri, L Farhi, L Feuerbach, RJ Ficenec, J Forest, TA Freyberger, A Funsten, H Gai, M Garcon, M Gilfoyle, GP Giovanetti, K Girard, P Griffioen, KA Guidal, M Gyurjyan, V Heddle, D Hersman, FW Hicks, K Hicks, RS Holtrop, M Hyde-Wright, CE Ito, MM Jenkins, D Joo, K Khandaker, M Kim, DH Kim, W Klein, A Klein, FJ Klusman, M Kossov, M Kramer, LH Kuhn, SE Lawrence, D Longhi, A Loukachine, K Magahiz, R Major, RW Manak, JJ Matthews, SK McAleer, S McCarthy, J McCormick, K McNabb, JWC Mecking, BA Mestayer, MD Meyer, CA Minehart, R Miskimen, R Muccifora, V Mueller, J Murphy, L Mutchler, GS Napolitano, J Niyazov, RA Opper, A O'Brien, JT Philips, S Pivnyuk, N Pocanic, D Pogorelko, O Polli, E Preedom, BM Price, JW Qin, LM Raue, BA Reolon, AR Riccardi, G Ricco, G Ripani, M Ritchie, BG Ronchetti, F Rossi, P Roudot, F Rowntree, D Rubin, PD Salgado, CW Sapunenko, V Schumacher, RA Shafi, A Sharabian, YG Skabelin, A Smith, C Smith, ES Sober, DI Stepanyan, S Stoler, P Taiuti, M Taylor, S Tedeschi, D Thompson, R Vineyard, MF Vlassov, A Weller, H Weinstein, LB Welsh, R Weygand, D Whisnant, S Witkowski, M Wolin, E Yegneswaran, A Yun, J Zhang, B Zhao, J
Citation
E. Anciant et al., Photoproduction of phi (1020) masons on the proton at large momentum transfer, PHYS REV L, 85(22), 2000, pp. 4682-4686
Citations number
27
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
0031-9007 → ACNP
Volume
85
Issue
22
Year of publication
2000
Pages
4682 - 4686
Database
ISI
SICI code
0031-9007(20001127)85:22<4682:POP(MO>2.0.ZU;2-X
Abstract
The cross section for phi meson photoproduction on the proton has been meas ured for the first time up to a four-momentum transfer -t = 4 GeV2, using t he CLAS detector at the Thomas Jefferson National Accelerator Facility. At low four-momentum transfer, the differential cross section is well describe d by Pomeron exchange. At large four-momentum transfer, above -t = 1.8 GeV2 , the data:support a model where the Pomeron is resolved into its simplest component, two gluons, which may couple to any quark in the proton and in t he phi.