Photoproduction of the rho(0) meson on the proton at large momentum transfer.

Academic Article

Abstract

  • The differential cross section, d sigma/dt, for rho(0) meson photoproduction on the proton above the resonance region was measured up to a momentum transfer -t = 5 GeV2 using the CLAS detector at the Thomas Jefferson National Accelerator Facility. The rho(0) channel was extracted from the measured two charged-pion cross sections by fitting the pi(+)pi(-) and p pi(+) invariant masses. The low momentum transfer region shows the typical diffractive pattern expected from Reggeon exchange. The flatter behavior at large -t cannot be explained solely in terms of QCD-inspired two-gluon exchange models. The data indicate that other processes, like quark interchange, are important to fully describe rho photoproduction.
  • Authors

  • Battaglieri, M
  • Anciant, E
  • Anghinolfi, M
  • De Vita, R
  • Golovach, E
  • Laget, JM
  • Mokeev, V
  • Ripani, M
  • Adams, G
  • Amaryan, MJ
  • Armstrong, DS
  • Asavapibhop, B
  • Asryan, G
  • Audit, G
  • Auger, T
  • Avakian, H
  • Barrow, S
  • Beard, K
  • Bektasoglu, M
  • Berman, BL
  • Bianchi, N
  • Biselli, AS
  • Boiarinov, S
  • Branford, D
  • Briscoe, WJ
  • Brooks, WK
  • Burkert, VD
  • Calarco, JR
  • Capitani, GP
  • Carman, DS
  • Carnahan, B
  • Cazes, A
  • Cetina, C
  • Cole, PL
  • Coleman, A
  • Cords, D
  • Corvisiero, P
  • Crabb, D
  • Crannell, H
  • Cummings, JP
  • DeSanctis, E
  • Degtyarenko, PV
  • Demirchyan, R
  • Denizli, H
  • Dennis, L
  • Dharmawardane, KV
  • Dhuga, KS
  • Djalali, C
  • Dodge, GE
  • Doughty, D
  • Dragovitsch, P
  • Dugger, M
  • Dytman, S
  • Eckhause, M
  • Egiyan, H
  • Egiyan, KS
  • Elouadrhiri, L
  • Farhi, L
  • Feuerbach, RJ
  • Ficenec, J
  • Forest, TA
  • Freyberger, AP
  • Frolov, V
  • Funsten, H
  • Gaff, SJ
  • Gai, M
  • Gilad, S
  • Gilfoyle, GP
  • Giovanetti, KL
  • Griffioen, K
  • Guidal, M
  • Guillo, M
  • Gyurjyan, V
  • Hancock, D
  • Hardie, J
  • Heddle, D
  • Hersman, FW
  • Hicks, K
  • Hicks, RS
  • Holtrop, Maurik
  • Hyde-Wright, CE
  • Ito, MM
  • Joo, K
  • Kelley, JH
  • Khandaker, M
  • Kim, W
  • Klein, A
  • Klein, FJ
  • Klusman, M
  • Kossov, M
  • Kramer, LH
  • Kuang, Y
  • Kuhn, SE
  • Lawrence, D
  • Lucas, M
  • Lukashin, K
  • Major, RW
  • Manak, JJ
  • Marchand, C
  • McAleer, S
  • McCarthy, J
  • McNabb, JW
  • Mecking, BA
  • Mestayer, MD
  • Meyer, CA
  • Mikhailov, K
  • Minehart, R
  • Mirazita, M
  • Miskimen, R
  • Muccifora, V
  • Mueller, J
  • Mutchler, GS
  • Napolitano, J
  • Nelson, SO
  • Niczyporuk, BB
  • Niyazov, RA
  • O'Brien, JT
  • Opper, AK
  • Peterson, G
  • Philips, SA
  • Pivnyuk, N
  • Pocanic, D
  • Pogorelko, O
  • Polli, E
  • Preedom, BM
  • Price, JW
  • Protopopescu, D
  • Qin, LM
  • Raue, BA
  • Reolon, AR
  • Riccardi, G
  • Ricco, G
  • Ritchie, BG
  • Ronchetti, F
  • Rossi, P
  • Rowntree, D
  • Rubin, PD
  • Sabourov, K
  • Salgado, C
  • Sanzone-Arenhovel, M
  • Sapunenko, V
  • Schumacher, RA
  • Serov, VS
  • Shafi, A
  • Sharabian, YG
  • Shaw, J
  • Skabelin, AV
  • Smith, ES
  • Smith, T
  • Smith, LC
  • Sober, DI
  • Spraker, M
  • Stavinsky, A
  • Stepanyan, S
  • Stoler, P
  • Taiuti, M
  • Taylor, S
  • Tedeschi, DJ
  • Todor, L
  • Thompson, R
  • Vineyard, MF
  • Vlassov, AV
  • Weinstein, LB
  • Weisberg, A
  • Weller, H
  • Weygand, DP
  • Whisnant, CS
  • Wolin, E
  • Wood, M
  • Yegneswaran, A
  • Yun, J
  • Zhang, B
  • Zhao, J
  • Zhou, Z
  • CLAS Collaboration
  • Status

    Publication Date

  • October 22, 2001
  • Has Subject Area

    Published In

    Keywords

  • CLAS Collaboration
  • Digital Object Identifier (doi)

    Pubmed Id

  • 11690264
  • Start Page

  • 172002
  • Volume

  • 87
  • Issue

  • 17