The ep -> e'p eta reaction at and above the S-11(1535) baryon resonance

Authors
Thompson, R Dytman, S Kim, KY Mueller, J Adams, GS Amaryan, MJ Anciant, E Anghinolfi, M Asavapibhop, B Auger, T Audit, G Avakian, H Barrow, S Battaglieri, M Beard, K Bektasoglu, M Bertozzi, W Bianchi, N Biselli, A Boiarinov, S Bonner, BE Briscoe, WJ Brooks, W Burkert, VD Calarco, JR Capitani, G Carman, DS Carnahan, B Cole, PL Coleman, A Connelly, J Cords, D Corvisiero, P Crabb, D Crannell, H Cummings, J Day, D Degtyarenko, PV Demirchyan, RA Dennis, LC Deppman, A De Sanctis, E De Vita, R Dhuga, KS Djalali, C Dodge, GE Doughty, D Dragovitsch, P Dugger, M Eckhause, M Efremenko, YV Egiyan, H Egiyan, KS Elouadrhiri, L Farhi, L Feuerbach, RJ Ficenec, J Fissum, K Freyberger, A Funsten, H Gai, M Gavrilov, VB Gilfoyle, GP Giovanetti, K Gilad, S Girard, P Griffioen, KA Guidal, M Guillo, M Gyurjyan, V Hancock, D Hardie, J Heddle, D Heisenberg, J Hersman, FW Hicks, K Hicks, RS Holtrop, M Hyde-Wright, CE Ito, MM Jenkins, D Kane, J Khandaker, M Kim, W Klein, A Klein, FJ Klusman, M Kossov, M Kuhn, SE Kuang, Y Laget, JM Lawrence, D Leskin, GA Longhi, A Loukachine, K Lucas, M Magahiz, R Major, RW Manak, JJ Marchand, C Matthews, SK McAleer, S McCarthy, J McNabb, JWC Mecking, BA Mestayer, MD Meyer, CA Minehart, R Mirazita, M Miskimen, R Muccifora, V Mutchler, GS Napolitano, J Niyazov, RA Ohandjanyan, MS O'Brien, JT Opper, A Patois, Y Peterson, GA 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, E Rowntree, D Rubin, PD Salgado, CW Sanzone, M Sapunenko, V Sarty, A Sargsyan, M Schumacher, RA Shafi, A Sharabian, YG Shaw, J Shuvalov, SM Skabelin, A Smith, T Smith, C Smith, ES Sober, DI Spraker, M Stepanyan, S Stoler, P Taiuti, M Taylor, S Tedeschi, D Tung, TY Vineyard, MF Vlassov, A Weller, H Weinstein, LB Welsh, R Weygand, DP Whisnant, S Witkowski, M Wolin, E Yegneswaran, A Yun, J Zhou, Z Zhao, J
Citation
R. Thompson et al., The ep -> e'p eta reaction at and above the S-11(1535) baryon resonance, PHYS REV L, 86(9), 2001, pp. 1702-1706
Citations number
23
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
0031-9007 → ACNP
Volume
86
Issue
9
Year of publication
2001
Pages
1702 - 1706
Database
ISI
SICI code
0031-9007(20010226)86:9<1702:TE-EER>2.0.ZU;2-Q
Abstract
New cross sections for the reaction ep --> ep eta are reported for total ce nter of mass energy W = 1.5-1.86 GeV and invariant momentum transfer Q(2) = 0.25-1.5 (GeV/c)(2). This large kinematic range allows extraction of impor tant new information about response functions, photocouplings, and etaN cou pling strengths of baryon resonances. Newly observed structure at W similar to 1.65 GeV is shown to come from interference between S and P waves and c an be interpreted with known resonances. Improved values are derived for th e photon coupling amplitude for the S-11(1535) resonance.