Electroproduction of ϕ(1020) mesons at 1.4 ≤ Q² ≤ 3.8 GeV² measured with the CLAS spectrometer

Santoro, J. et al. (2008) Electroproduction of ϕ(1020) mesons at 1.4 ≤ Q² ≤ 3.8 GeV² measured with the CLAS spectrometer. Physical Review C, 78(2), 025210. (doi: 10.1103/PhysRevC.78.025210)

Abstract

Electroproduction of exclusive ϕ vector mesons has been studied with the CLAS detector in the kinematic range 1.4≤ Q²≤ 3.8 GeV²,0.0≤ t′≤ 3.6 GeV², and 2.0≤ W≤ 3.0 GeV. The scaling exponent for the total cross section as 1/(Q2+M2ϕ)n was determined to be n=2.49±0.33. The slope of the four-momentum transfer t′distribution is bϕ=0.98±0.17 GeV⁻². Under the assumption of s-channel helicity conservation, we determine the ratio of longitudinal to transverse cross sections to be R=0.86±0.24. A two-gluon exchange model is able to reproduce the main features of the data.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Sokhan, Dr Daria and McKinnon, Dr Bryan and Melone, Mr John and Livingston, Dr Kenneth and Watts, Dr Daniel and Protopopescu, Dr Dan and Ireland, Professor David and Hassall, Mr Neil and Kellie, Dr James and Rosner, Professor Guenther
• Authors: Santoro, J., Smith, E., Garcon, M., Guidal, M., Laget, J., Weiss, C., Adams, G., Amaryan, M., Anghinolfi, M., Asryan, G., Audit, G., Avakian, H., Bagdasaryan, H., Baillie, N., Ball, J., Ball, J., Baltzell, N., Barrow, S., Battaglieri, M., Bedlinskiy, I., Bektasoglu, M., Bellis, M., Benmouna, N., Berman, B., Biselli, A., Blaszczyk, L., Bonner, B., Bookwalter, C., Bouchigny, S., Boiarinov, S., Bradford, R., Branford, D., Briscoe, W., Brooks, W., Bueltmann, S., Burkert, V., Butuceanu, C., Calarco, J., Careccia, S., Carman, D., Casey, L., Cazes, A., Chen, S., Cheng, L., Cole, P., Collins, P., Coltharp, P., Cords, D., Corvisiero, P., Crabb, D., Crannell, H., Crede, V., Cummings, J., Dale, D., Dashyan, N., De Masi, R., De Sanctis, E., De Vita, R., Degtyarenko, P., Denizli, H., Dennis, L., Deur, A., Dhamija, S., Dharmawardane, K., Dhuga, K., Dickson, R., Djalali, C., Dodge, G., Doughty, D., Dugger, M., Dytman, S., Dzyubak, O., Egiyan, H., Egiyan, K., El Fassi, L., Elouadrhiri, L., Eugenio, P., Fatemi, R., Fedotov, G., Feuerbach, R., Ficenec, J., Forest, T., Fradi, A., Funsten, H., Gavalian, G., Gevorgyan, N., Gilfoyle, G., Giovanetti, K., Girod, F., Goetz, J., Gohn, W., Gordon, C., Gothe, R., Graham, L., Griffioen, K., Guillo, M., Guler, N., Guo, L., Gyurjyan, V., Hadjidakis, C., Hafidi, K., Hakobyan, H., Hanretty, C., Hardie, J., Hassall, N., Heddle, D., Hersman, F., Hicks, K., Hleiqawi, I., Holtrop, M., Hyde-Wright, C., Ilieva, Y., Ireland, D., Ishkhanov, B., Isupov, E., Ito, M., Jenkins, D., Jo, H., Johnstone, J., Joo, K., Juengst, H., Kalantarians, N., Keller, D., Kellie, J., Khandaker, M., Kim, W., Klein, A., Klein, F., Klimenko, V., Kossov, M., Krahn, Z., Kramer, L., Kubarovsky, V., Kuhn, J., Kuhn, S., Kuleshov, S., Kuznetsov, V., Lachniet, J., Langheinrich, J., Lawrence, D., Li, J., Livingston, K., Lu, H., MacCormick, M., Marchand, C., Markov, N., Mattione, P., McAleer, S., McKinnon, B., McNabb, J., Mecking, B., Mehrabyan, S., Melone, J., Mestayer, M., Meyer, C., Mibe, T., Mikhailov, K., Minehart, R., Mirazita, M., Miskimen, R., Mokeev, V., Morand, L., Moreno, B., Moriya, K., Morrow, S., Moteabbed, M., Mueller, J., Munevar, E., Mutchler, G., Nadel-Turonski, P., Nasseripour, R., Niccolai, S., Niculescu, G., Niculescu, I., Niczyporuk, B., Niroula, M., Niyazov, R., Nozar, M., O'Rielly, G., Osipenko, M., Ostrovidov, A., Park, K., Park, S., Pasyuk, E., Paterson, C., Pereira, S., Philips, S., Pierce, J., Pivnyuk, N., Pocanic, D., Pogorelko, O., Popa, I., Pozdniakov, S., Preedom, B., Price, J., Procureur, S., Prok, Y., Protopopescu, D., Qin, L., Raue, B., Riccardi, G., Ricco, G., Ripani, M., Ritchie, B., Rosner, G., Rossi, P., Sabatie, F., Saini, M., Salamanca, J., Salgado, C., Sapunenko, V., Schott, D., Schumacher, R., Serov, V., Sharabian, Y., Sharov, D., Shvedunov, N., Skabelin, A., Smith, L., Sober, D., Sokhan, D., Stavinsky, A., Stepanyan, S., Stepanyan, S., Stokes, B., Stoler, P., Strakovsky, I., Strauch, S., TaiUti, M., Tedeschi, D., Tkabladze, A., Tkachenko, S., Todor, L., Tur, C., Ungaro, M., Vineyard, M., Vlassov, A., Watts, D., Weinstein, L., Weygand, D., Williams, M., Wolin, E., Wood, M., Yegneswaran, A., Yurov, M., Zana, L., Zhang, J., Zhao, B., and Zhao, Z.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physical Review C
• Publisher: American Physical Society
• ISSN: 0556-2813
• ISSN (Online): 1089-490X
• Published Online: 18 August 2008