Tensor polarization of the φ meson photoproduced at high t

K. McCormick, G. Audit, J. M. Laget, G. Adams, P. Ambrozewicz, E. Anciant, M. Anghinolfi, B. Asavapibhop, T. Auger, H. Avakian, H. Bagdasaryan, J. P. Ball, S. Barrow, M. Battaglieri, K. Beard, M. Bektasoglu, M. Bellis, N. Benmouna, B. L. Berman, N. BianchiA. S. Biselli, S. Boiarinov, B. E. Bonner, S. Bouchigny, R. Bradford, W. K. Brooks, V. D. Burkert, C. Butuceanu, J. R. Calarco, D. S. Carman, B. Carnahan, C. Cetina, S. Chen, P. L. Cole, A. Coleman, J. Connelly, D. Cords, P. Corvisiero, D. Crabb, H. Crannell, J. P. Cummings, E. de Sanctis, R. DeVita, P. V. Degtyarenko, H. Denizli, L. Dennis, K. V. Dharmawardane, C. Djalali, G. E. Dodge, D. Doughty, P. Dragovitsch, Michael Dugger, S. Dytman, O. P. Dzyubak, M. Eckhause, H. Egiyan, K. S. Egiyan, L. Elouadrhiri, P. Eugenio, L. Farhi, R. J. Feuerbach, J. Ficenec, T. A. Forest, V. Frolov, H. Funsten, S. J. Gaff, M. Gai, M. Garçon, G. Gavalian, S. Gilad, G. P. Gilfoyle, K. L. Giovanetti, P. Girard, C. I O Gordon, K. Griffioen, M. Guidal, M. Guillo, L. Guo, V. Gyurjyan, C. Hadjidakis, R. S. Hakobyan, D. Hancock, J. Hardie, D. Heddle, F. W. Hersman, K. Hicks, R. S. Hicks, M. Holtrop, C. E. Hyde-Wright, M. M. Ito, D. Jenkins, K. Joo, H. G. Juengst, J. H. Kelley, M. Khandaker, W. Kim, A. Klein, F. J. Klein, A. Klimenko, M. Klusman, M. Kossov, L. H. Kramer, Y. Kuang, S. E. Kuhn, J. Kuhn, J. Lachniet, J. Langheinrich, D. Lawrence, J. Li, K. Lukashin, W. Major, J. J. Manak, C. Marchand, S. McAleer, J. W C McNabb, B. A. Mecking, S. Mehrabyan, J. J. Melone, M. D. Mestayer, C. A. Meyer, R. Minehart, M. Mirazita, R. Miskimen, L. Morand, S. A. Morrow, V. Muccifora, J. Mueller, G. S. Mutchler, J. Napolitano, R. Nasseripour, S. O. Nelson, S. Niccolai, G. Niculescu, I. Niculescu, B. B. Niczyporuk, R. A. Niyazov, M. Nozar, M. Osipenko, K. Park, E. Pasyuk, G. Peterson, S. A. Philips, N. Pivnyuk, D. Pocanic, O. Pogorelko, E. Polli, B. M. Preedom, J. W. Price, Y. Prok, D. Protopopescu, L. M. Qin, B. A. Raue, G. Riccardi, G. Ricco, M. Ripani, Barry Ritchie, F. Ronchetti, P. Rossi, D. Rowntree, P. D. Rubin, F. Sabatié, K. Sabourov, C. Salgado, J. P. Santoro, M. Sanzone-Arenhovel, V. Sapunenko, M. Sargsyan, R. A. Schumacher, V. S. Serov, A. Shafi, Y. G. Sharabian, J. Shaw, A. V. Skabelin, E. S. Smith, T. Smith, L. C. Smith, D. I. Sober, M. Spraker, S. Stepanyan, P. Stoler, S. Strauch, M. Taiuti, S. Taylor, D. J. Tedeschi, U. Thoma, R. Thompson, L. Todor, C. Tur, M. Ungaro, M. F. Vineyard, A. V. Vlassov, K. Wang, L. B. Weinstein, H. Weller, D. P. Weygand, C. S. Whisnant, M. Witkowski, E. Wolin, M. H. Wood, A. Yegneswaran, J. Yun, J. Zhao, Z. Zhou

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Abstract

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.

Original languageEnglish (US)
Article number032203
Pages (from-to)032203-1-032203-5
JournalPhysical Review C - Nuclear Physics
Volume69
Issue number3
DOIs
StatePublished - Mar 2004

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    McCormick, K., Audit, G., Laget, J. M., Adams, G., Ambrozewicz, P., Anciant, E., Anghinolfi, M., Asavapibhop, B., Auger, T., Avakian, H., Bagdasaryan, H., Ball, J. P., Barrow, S., Battaglieri, M., Beard, K., Bektasoglu, M., Bellis, M., Benmouna, N., Berman, B. L., ... Zhou, Z. (2004). Tensor polarization of the φ meson photoproduced at high t. Physical Review C - Nuclear Physics, 69(3), 032203-1-032203-5. [032203]. https://doi.org/10.1103/PhysRevC.69.032203