Separated structure functions for exclusive K+Λ and K+Σ0 electroproduction at 5.5 GeV measured with CLAS

Carman, D. et al. (2013) Separated structure functions for exclusive K+Λ and K+Σ0 electroproduction at 5.5 GeV measured with CLAS. Physical Review C, 87(2), Art. 025204. (doi:10.1103/PhysRevC.87.025204)

Carman, D. et al. (2013) Separated structure functions for exclusive K+Λ and K+Σ0 electroproduction at 5.5 GeV measured with CLAS. Physical Review C, 87(2), Art. 025204. (doi:10.1103/PhysRevC.87.025204)

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Abstract

We report measurements of the exclusive electroproduction of K+Λ and K+Σ0 final states from an unpolarized proton target using the CLAS detector at the Thomas Jefferson National Accelerator Facility. The separated structure functions σU, σLT, σTT, and σLT′ were extracted from the Φ-dependent differential cross sections acquired with a longitudinally polarized 5.499 GeV electron beam. The data span a broad range of momentum transfers Q2 from 1.4 to 3.9 GeV2, invariant energy W from threshold to 2.6 GeV, and nearly the full center-of-mass angular range of the kaon. The separated structure functions provide an unprecedented data sample, which, in conjunction with other meson photo- and electroproduction data, will help to constrain the higher-level analyses being performed to search for missing baryon resonances.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Sokhan, Dr Daria and McKinnon, Dr Bryan and Livingston, Dr Kenneth and Fegan, Mr Stuart and Montgomery, Dr Rachel and Protopopescu, Dr Dan and Ireland, Professor David and MacGregor, Professor I and Rosner, Professor Guenther
Authors: Carman, D., Park, K., Raue, B., Adhikari, K., Adikaram, D., Aghasyan, M., Amaryan, M., Anderson, M., Anefalos Pereira, S., Anghinolfi, M., Avakian, H., Baghdasaryan, H., Ball, J., Baltzell, N., Battaglieri, M., Batourine, V., Bedlinskiy, I., Biselli, A., Bono, J., Boiarinov, S., Briscoe, W., Brooks, W., Burkert, V., Celentano, A., Chandavar, S., Charles, G., Cole, P., Contalbrigo, M., Cortes, O., Crede, V., D'Angelo, A., Dashyan, N., De Vita, R., De Sanctis, E., Deur, A., Djalali, C., Doughty, D., Dupre, R., El Alaoui, A., El Fassi, L., Eugenio, P., Fedotov, G., Fegan, S., Fersch, R., Fleming, J., Fradi, A., Gabrielyan, M., Gevorgyan, N., Giovanetti, K., Girod, F., Goetz, J., Gohn, W., Gothe, R., Griffioen, K., Guegan, B., Guidal, M., Guo, L., Hafidi, K., Hakobyan, H., Hanretty, C., Harrison, N., Heddle, D., Hicks, K., Ho, D., Holtrop, M., Ilieva, Y., Ireland, D., Ishkhanov, B., Isupov, E., Jo, H., Joo, K., Keller, D., Khandaker, M., Khetarpal, P., Kim, A., Kim, W., Klein, A., Klein, F., Koirala, S., Kubarovsky, A., Kubarovsky, V., Kuleshov, S., Kvaltine, N., Lewis, S., Livingston, K., Lu, H., MacGregor, I.J.D., Mao, Y., Martinez, D., Mayer, M., McKinnon, B., Mestayer, M., Meyer, C., Mineeva, T., Mirazita, M., Mokeev, V., Montgomery, R., Moutarde, H., Munevar, E., Munoz Camacho, C., Nadel-Turonski, P., Nasseripour, R., Nepali, C., Niccolai, S., Niculescu, G., Niculescu, I., Osipenko, M., Ostrovidov, A., Pappalardo, L., Paremuzyan, R., Park, S., Pasyuk, E., Phelps, E., Phillips, J., Pisano, S., Pogorelko, O., Pozdniakov, S., Price, J., Procureur, S., Prok, Y., Protopopescu, D., Puckett, A., Ricco, G., Rimal, D., Ripani, M., Rosner, G., Rossi, P., Sabatié, F., Saini, M., Salgado, C., Saylor, N., Schott, D., Schumacher, R., Seder, E., Seraydaryan, H., Sharabian, Y., Smith, G., Sober, D., Sokhan, D., Stepanyan, S., Stepanyan, S., Stoler, P., Strakovsky, I., Strauch, S., Taiuti, M., Tang, W., Taylor, C., Tian, Y., Tkachenko, S., Trivedi, A., Ungaro, M., Vernarsky, B., Voskanyan, H., Voutier, E., Walford, N., Watts, D., Weinstein, L., Wood, M., Zachariou, N., Zana, L., Zhang, J., Zhao, Z., and Zonta, I.
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

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
507271Illuminating strongly interacting matterI MacgregorScience & Technologies Facilities Council (STFC)ST/G008604/1P&A - PHYSICS & ASTRONOMY
570711Nuclear Physics GroupDavid IrelandScience & Technologies Facilities Council (STFC)ST/J000175/1P&A - PHYSICS & ASTRONOMY