Tensor polarization of the φ meson photoproduced at high t

Published

Journal Article

As part of a measurement [E. Anciant et al., Phys. Rev. Lett. 85, 4682 (2000)] of the cross section of φ meson photoproduction to high momentum transfer, we measured the polar angular decay distribution of the outgoing K+ in the channel φ → K+K- in the φ center-of-mass frame (the helicity frame). We find that s-channel helicity conservation (SCHC) holds in the kinematical range where t-channel exchange dominates (up to -t ∼ 2.5 GeV2 for Eγ= 3.6 GeV). Above this momentum, u-channel production of a φ meson dominates and induces a violation of SCHC. The deduced value of the φNN coupling constant lies in the upper range of previously reported values.

Full Text

Duke Authors

Cited Authors

  • McCormick, K; Audit, G; Laget, JM; Adams, G; Ambrozewicz, P; Anciant, E; Anghinolfi, M; Asavapibhop, B; 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; Bonner, BE; Bouchigny, S; Bradford, R; 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; Eugenio, P; Farhi, L; Feuerbach, RJ; Ficenec, J; Forest, TA; Frolov, V; Funsten, H; Gaff, SJ; Gai, M; Garçon, M; Gavalian, G; Gilad, S; Gilfoyle, GP; Giovanetti, KL; Girard, P; Gordon, CIO; Griffioen, K; Guidal, M; Guillo, M; Guo, L; Gyurjyan, V; Hadjidakis, C; Hakobyan, RS; Hancock, D; Hardie, J; Heddle, D; Hersman, FW; Hicks, K; Hicks, RS; Holtrop, M; Hyde-Wright, CE; Ito, MM; Jenkins, D; Joo, K; Juengst, HG; Kelley, JH; Khandaker, M; Kim, W; Klein, A; Klein, FJ; Klimenko, A; Klusman, M

Published Date

  • January 1, 2004

Published In

Volume / Issue

  • 69 / 3

Electronic International Standard Serial Number (EISSN)

  • 1089-490X

International Standard Serial Number (ISSN)

  • 0556-2813

Digital Object Identifier (DOI)

  • 10.1103/PhysRevC.69.032203

Citation Source

  • Scopus