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Differential cross sections for Λ ( 1520 ) using photoproduction at CLAS
Shrestha, U. ; Chetry, T. ; Djalali, C. ; Hicks, K. ; Nam, S. i. ; Adhikari, K. P. ; Adhikari, S. ; Amaryan, M. J. ; Angelini, G. ; Atac, H. ; Barion, L. ; Battaglieri, M. ; Bedlinskiy, I. ; Benmokhtar, F. ; Bianconi, A. ; Biselli, A. S. ; Bondi, M. ; Bossù, F. ; Boiarinov, S. ; Briscoe, W. J. ; Brooks, W. K. ; Bulumulla, D. ; Burkert, V. D. ; Carman, D. S. ; Carvajal, J. C. ; Celentano, A. ; Chatagnon, P. ; Ciullo, G. ; Cole, P. L. ; Contalbrigo, M. ; Crede, V. ; D'Angelo, A.FZJ* ; Dashyan, N. ; De Vita, R. ; Defurne, M. ; Deur, A. ; Diehl, S. ; Dugger, M. ; Dupre, R. ; Egiyan, H. ; Ehrhart, M. ; El Fassi, L. ; Eugenio, P. ; Fedotov, G. ; Fegan, S. ; Filippi, A. ; Gavalian, G. ; Ghandilyan, Y. ; Gilfoyle, G. P. ; Girod, F. X. ; Glazier, D. I. ; Gothe, R. W. ; Griffioen, K. A. ; Guidal, M. ; Guo, L.FZJ* ; Hafidi, K. ; Hakobyan, H. ; Hattawy, M. ; Hayward, T. B. ; Heddle, D. ; Holtrop, M. ; Huang, Q. ; Ireland, D. G. ; Isupov, E. L. ; Jo, H. S.FZJ* ; Joo, K. ; Joosten, S. ; Keller, D. ; Khanal, A. ; Khandaker, M. ; Kim, T.FZJ* ; Kim, W. ; Klein, F.FZJ* ; Kripko, A. ; Kubarovsky, V. ; Lanza, L. ; Leali, M. ; Lenisa, P. ; Livingston, K. ; MacGregor, I. J. D. ; Marchand, D. ; Marsicano, L. ; Mascagna, V. ; McCracken, M. E. ; McKinnon, B. ; Mokeev, V. ; Movsisyan, A. ; Munevar, E. ; Munoz Camacho, C. ; Nadel-Turonski, P. ; Neupane, K. ; Niccolai, S. ; Niculescu, G. ; O'Connell, T. ; Osipenko, M. ; Ostrovidov, A. I. ; Pappalardo, L. L. ; Paremuzyan, R. ; Park, K. ; Pasyuk, E. ; Phelps, W. ; Pivnyuk, N. ; Pogorelko, O. ; Poudel, J. ; Prok, Y. ; Ripani, M. ; Ritman, J. (Corresponding author)FZJ* ; Rizzo, A. ; Rosner, G. ; Rowley, J. ; Sabatié, F. ; Salgado, C. ; Schmidt, A.FZJ* ; Tichelbäcker, L.FZJ* ; Sharabian, Y. G. ; Soto, O. ; Sparveris, N. ; Stepanyan, S. ; Strakovsky, I. I. ; Strauch, S. ; Tyler, N. ; Ungaro, M. ; Venturelli, L. ; Voskanyan, H. ; Voutier, E. ; Watts, D. P. ; Wei, D.FZJ* ; Wei, X.FZJ* ; Wood, M. H. ; Yale, B. ; Zachariou, N. ; Zhang, J.FZJ* ; Zhao, Z. W.
2021
Inst.
Woodbury, NY
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Please use a persistent id in citations: http://hdl.handle.net/2128/27768 doi:10.1103/PhysRevC.103.025206
Abstract: The reaction γp→K+Λ(1520) using photoproduction data from the CLAS g12 experiment at Jefferson Lab is studied. The decay of Λ(1520) into two exclusive channels, Σ+π− and Σ−π+, is studied from the detected K+, π+, and π− particles. A good agreement is established for the Λ(1520) differential cross sections with the previous CLAS measurements. The differential cross sections as a function of CM angle are extended to higher photon energies. Newly added are the differential cross sections as a function of invariant 4-momentum transfer t, which is the natural variable to use for a theoretical model based on a Regge-exchange reaction mechanism. No new N∗ resonances decaying into the K+Λ(1520) final state are found.
Contributing Institute(s):
- Experimentelle Hadronstruktur (IKP-1)
Research Program(s):
- 612 - Cosmic Matter in the Laboratory (POF4-612) (POF4-612)
- 6G12 - FAIR (GSI) (POF4-6G12) (POF4-6G12)
Appears in the scientific report
2021
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