Polarized structure function σLT′ for ¹H(e→,e′K+)Λ in the nucleon resonance region

Nasseripour, R. et al. (2008) Polarized structure function σLT′ for ¹H(e→,e′K+)Λ in the nucleon resonance region. Physical Review C, 77(6), 065208. (doi: 10.1103/PhysRevC.77.065208)

Abstract

The first measurements of the polarized structure function σLT′ for the reaction ¹H (e→,e′K+)Λ in the nucleon resonance region are reported. Measurements are included from threshold up to W=2.05 GeV for central values of Q² of 0.65 and 1.00 GeV², and nearly the entire kaon center-of-mass angular range. σLT′ is the imaginary part of the longitudinal-transverse response and is expected to be sensitive to interferences between competing intermediate s-channel resonances, as well as resonant and nonresonant processes. The results for σLT′ are comparable in magnitude to previously reported results from CLAS for σLT, the real part of the same response. An intriguing sign change in σLT′ is observed in the high Q2 data at W≈1.9 GeV. Comparisons to several existing model predictions are shown.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Sokhan, Dr Daria and McKinnon, Dr Bryan and Livingston, Dr Kenneth and Watts, Dr Daniel and Protopopescu, Dr Dan and Ireland, Professor David and Kellie, Dr James and Rosner, Professor Guenther
• Authors: Nasseripour, R., Raue, B., Carman, D., Ambrozewicz, P., Amaryan, M., Anciant, E., Anghinolfi, M., Asavapibhop, B., Asryan, G., Audit, G., Auger, T., Avakian, H., Bagdasaryan, H., Baillie, N., Ball, J., Baltzell, N., Barrow, S., Battaglieri, M., Beard, K., Bedlinskiy, I., Bektasoglu, M., Bellis, M., Benmouna, N., Berman, B., Biselli, A., Blaszczyk, L., Bonner, B., Bouchigny, S., Boiarinov, S., Bradford, R., Branford, D., Briscoe, W., Brooks, W., Burkert, V., Butuceanu, C., Calarco, J., Careccia, S., Casey, L., Cetina, C., Chen, S., Cheng, L., Cole, P., Collins, P., Coltharp, P., Cords, D., Corvisiero, P., Crabb, D., Crede, V., Dale, D., Dashyan, N., De Masi, R., De Vita, R., De Sanctis, E., Degtyarenko, P., Dennis, L., Deur, A., Dhuga, K., Dickson, R., Djalali, C., Dodge, G., Doughty, D., Dragovitsch, P., Dugger, M., Dytman, S., Dzyubak, O., Egiyan, H., Egiyan, K., El Fassi, L., Elouadrhiri, L., Eugenio, P., Fatemi, R., Fedotov, G., Feldman, G., Feuerbach, R., Forest, T., Fradi, A., Funsten, H., Garccon, M., Gavalian, G., Gevorgyan, N., Gilfoyle, G., Giovanetti, K., Girard, P., Girod, F., Goetz, J., Gothe, R., Griffioen, K., Guidal, M., Guillo, M., Guler, N., Guo, L., Gyurjyan, V., Hafidi, K., Hakobyan, H., Hanretty, C., Hardie, J., Heddle, D., Hersman, F., Hicks, K., Hleiqawi, I., Holtrop, M., Hu, J., 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., Kellie, J., Khandaker, M., Kim, K., Kim, K., Kim, W., Klein, A., Klein, F., Kossov, M., Krahn, Z., Kramer, L., Kubarovsky, V., Kuhn, J., Kuhn, S., Kuleshov, S., Kuznetsov, V., Lachniet, J., Laget, J., Langheinrich, J., Lawrence, D., Livingston, K., Lu, H., Lukashin, K., MacCormick, M., Manak, J., Markov, N., Mattione, P., McAleer, S., McKinnon, B., McNabb, J., Mecking, B., Mestayer, M., Meyer, C., Mibe, T., Mikhailov, K., Minehart, R., Mirazita, M., Miskimen, R., Mokeev, V., Moreno, B., Moriya, K., Morrow, S., Moteabbed, M., Mueller, J., Munevar, E., Mutchler, G., Nadel-Turonski, P., Niccolai, S., Niculescu, G., Niculescu, I., Niczyporuk, B., Niroula, M., Niyazov, R., Nozar, M., Osipenko, M., Ostrovidov, A., Park, K., Pasyuk, E., Paterson, C., Pereira, S., Peterson, G., Philips, S., Pierce, J., Pivnyuk, N., Pocanic, D., Pogorelko, O., Pozdniakov, S., Preedom, B., Price, J., Procureur, S., Prok, Y., Protopopescu, D., Qin, L., Riccardi, G., Ricco, G., Ripani, M., Ritchie, B., Rosner, G., Rossi, P., Rubin, P., Sabatie, F., Salamanca, J., Salgado, C., Santoro, J., Sapunenko, V., Sayre, D., Schumacher, R., Serov, V., Shafi, A., Sharabian, Y., Sharov, D., Shvedunov, N., Simionatto, S., Skabelin, A., Smith, E., Smith, L., Sober, D., Sokhan, D., Stavinsky, A., Stepanyan, S., Stepanyan, S., Stokes, B., Stoler, P., Strakovsky, I., Strauch, S., Taiuti, M., Taylor, S., Tedeschi, D., Thompson, R., Tkabladze, A., Tkachenko, S., Ungaro, M., Vineyard, M., Vlassov, A., Wang, K., Watts, D., Weinstein, L., Weygand, D., Williams, M., Wolin, E., Wood, M., Yegneswaran, A., Yun, J., 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: 11 June 2008