Photoproduction of the [Formula presented] 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. BektasogluB. 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

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Abstract

The differential cross section, [Formula presented], for [Formula presented] meson exclusive photoproduction on the proton above the resonance region ([Formula presented]) was measured up to a momentum transfer [Formula presented] using the CLAS detector at Jefferson Laboratory. The [Formula presented] channel was identified by detecting a proton and [Formula presented] 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 [Formula presented] 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. © 2003 The American Physical Society.
Original languageEnglish
Pages (from-to)5
Number of pages1
JournalPhysical Review Letters
DOIs
Publication statusPublished - 1 Jan 2003
Externally publishedYes

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    Battaglieri, M., Brunoldi, M., De Vita, R., Laget, J. M., Osipenko, M., Ripani, M., Taiuti, M., Adams, G., Amaryan, M. J., Anciant, E., Anghinolfi, M., Armstrong, D. S., Asavapibhop, B., Asryan, G., Audit, G., Auger, T., Avakian, H., Barrow, S., Beard, K., ... Klusman, M. (2003). Photoproduction of the [Formula presented] Meson on the Proton at Large Momentum Transfer. Physical Review Letters, 5. https://doi.org/10.1103/PhysRevLett.90.022002