Exclusive photoproduction of the cascade (Ξ) hyperons


Journal Article

We report on the first measurement of exclusive Ξ-(1321) hyperon photoproduction in γp→K+K+Ξ- for 3.2<3.9 GeV. The final state is identified by the missing mass in p(γ,K+K+)X measured with the CLAS detector at Jefferson Laboratory. We have detected a significant number of the ground state Ξ-(1321)12+ and have estimated the total cross section for its production. We also have strong evidence for the first excited state Ξ-(1530)32+. Photoproduction provides a copious source of Ξ's. We discuss the possibilities of a search for the recently proposed Ξ5- and Ξ5+ pentaquarks. © 2005 The American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Price, JW; Nefkens, BMK; Ducote, JL; Goetz, JT; Adams, G; Ambrozewicz, P; Anciant, E; Anghinolfi, M; Asavapibhop, B; Audit, G; Auger, T; Avakian, H; Bagdasaryan, H; Ball, JP; Barrow, S; Battaglieri, M; Beard, K; Bektasoglu, M; Bellis, M; Benmouna, N; Berman, BL; Bianchi, N; Biselli, AS; Boiarinov, S; Bouchigny, S; Bradford, R; Branford, D; Briscoe, WJ; Brooks, WK; Burkert, VD; Butuceanu, C; Calarco, JR; Carman, DS; Carnahan, B; Cetina, C; Chen, S; Cole, PL; Coleman, A; Connelly, J; Cords, D; Corvisiero, P; Crabb, D; Crannell, H; Cummings, JP; de Sanctis, E; DeVita, R; Degtyarenko, PV; Denizli, H; Dennis, L; Dharmawardane, KV; Djalali, C; Dodge, GE; Doughty, D; Dragovitsch, P; Dugger, M; Dytman, S; Dzyubak, OP; Eckhause, M; Egiyan, H; Egiyan, KS; Elouadrhiri, L; Empl, A; Eugenio, P; Farhi, L; Fatemi, R; Feuerbach, RJ; Forest, TA; Frolov, V; Funsten, H; Gaff, SJ; Gavalian, G; Gilfoyle, GP; Giovanetti, KL; Gordon, CIO; Gothe, R; Griffioen, K; Guidal, M; Guillo, M; Guler, N; Guo, L; Gyurjyan, V; Hadjidakis, C; Hakobyan, RS; Hancock, D; Hardie, J; Heddle, D; Hersman, FW; Hicks, K; Hleiqawi, I; Holtrop, M; Hu, J; Hyde-Wright, CE; Ilieva, Y; Ireland, D; Ito, MM; Jenkins, D; Joo, K; Juengst, HG; Kelley, JH; Kellie, J

Published Date

  • May 1, 2005

Published In

Volume / Issue

  • 71 / 5

Electronic International Standard Serial Number (EISSN)

  • 1089-490X

International Standard Serial Number (ISSN)

  • 0556-2813

Digital Object Identifier (DOI)

  • 10.1103/PhysRevC.71.058201

Citation Source

  • Scopus