Differential cross sections and polarization observables from CLAS K* photoproduction and the search for new N* states

Anisovich, A.V. et al. (2017) Differential cross sections and polarization observables from CLAS K* photoproduction and the search for new N* states. Physics Letters B, 771, pp. 142-150. (doi: 10.1016/j.physletb.2017.05.029)

Abstract

The reaction γp→K*+Λ was measured using the CLAS detector for photon energies between the threshold and 3.9 GeV at the Thomas Jefferson National Accelerator Facility. For the first time, spin-density matrix elements have been extracted for this reaction. Differential cross sections, spin density matrix elements, and the Λ recoil polarization are compared with theoretical predictions using the BnGa partial wave analysis. The main result is the evidence for significant contributions from N(1895)1/2− and N(2100)1/2+ to the reaction. Branching ratios for decays into K*Λ for these resonances and further resonances are reported.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: MacGregor, Professor Douglas and Murdoch, Mr Gavin and McKinnon, Dr Bryan and Clark, Ms Louise and Livingston, Dr Kenneth and Montgomery, Dr Rachel and Ireland, Professor David and Rosner, Professor Guenther
• Authors: Anisovich, A.V., Hicks, K., Klempt, E., Nikonov, V.A., Sarantsev, A., Tang, W., Adikaram, D., Akbar, Z., Amaryan, M.J., Anefalos Pereira, S., Badui, R.A., Ball, J., Battaglieri, M., Batourine, V., Bedlinskiy, I., Biselli, A.S., Briscoe, W.J., Burkert, V.D., Carman, D.S., Celentano, A., Chandavar, S., Chetry, T., Ciullo, G., Clark, L., Cole, P.L., Compton, N., Contalbrigo, M., Crede, V., D'Angelo, A., Dashyan, N., De Vita, R., De Sanctis, E., Deur, A., Djalali, C., Dugger, M., Dupre, R., Egiyan, H., El Alaoui, A., El Fassi, L., Eugenio, P., Fanchini, E., Fedotov, G., Filippi, A., Fleming, J.A., Gevorgyan, N., Ghandilyan, Y., Giovanetti, K.L., Girod, F.X., Gleason, C., Gothe, R.W., Griffioen, K.A., Guo, L., Hanretty, C., Harrison, N., Hattawy, M., Holtrop, M., Hughes, S.M., Ilieva, Y., Ireland, D.G., Ishkhanov, B.S., Isupov, E.L., Jenkins, D., Jiang, H., Jo, H.S., Joosten, S., Keller, D., Khachatryan, G., Khandaker, M., Kim, W., Klein, F.J., Kubarovsky, V., Lanza, L., Lenisa, P., Livingston, K., MacGregor, I.J.D., Markov, N., McKinnon, B., Meyer, C.A., Mirazita, M., Mokeev, V., Montgomery, R.A., Movsisyan, A., Munevar, E., Munoz Camacho, C., Murdoch, G., Nadel-Turonski, P., Net, L.A., Ni, A., Niccolai, S., Niculescu, I., Osipenko, M., Ostrovidov, A.I., Paolone, M., Paremuzyan, R., Park, K., Pasyuk, E., Peng, P., Phelps, W., Pisano, S., Pogorelko, O., Price, J.W., Prok, Y., Puckett, A.J.R., Raue, B.A., Ripani, M., Ritchie, B.G., Rosner, G., Roy, P., Sabatié, F., Schumacher, R.A., Sharabian, Y.G., Skorodumina, I., Smith, G.D., Sokhan, D., Sparveris, N., Stankovic, I., Stepanyan, S., Strauch, S., Sytnik, V., Tian, Y., Ungaro, M., Voskanyan, H., Voutier, E., Walford, N.K., Watts, D.P., Wood, M.H., Zachariou, N., Zhang, J., and Zonta, I.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physics Letters B
• Publisher: Elsevier BV
• ISSN: 0370-2693
• ISSN (Online): 1873-2445
• Published Online: 16 May 2017
• Copyright Holders: Copyright © 2017 The Authors
• First Published: First published in Physics Letters B 771:142-150
• Publisher Policy: Reproduced under a Creative Commons License