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 center-of-mass angle are extended to higher photon energies. Newly added are the differential cross sections as a function of invariant four-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.

Differential cross sections for Λ(1520) using photoproduction at CLAS

Barion L.;Ciullo G.;Contalbrigo M.;Lenisa P.;Movsisyan A.;Pappalardo L. L.;
2021

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 center-of-mass angle are extended to higher photon energies. Newly added are the differential cross sections as a function of invariant four-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.
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.; Bossu, 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.; 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.; Hafidi, K.; Hakobyan, H.; Hattawy, M.; Hayward, T. B.; Heddle, D.; Holtrop, M.; Huang, Q.; Ireland, D. G.; Isupov, E. L.; Jo, H. S.; Joo, K.; Joosten, S.; Keller, D.; Khanal, A.; Khandaker, M.; Kim, A.; Kim, W.; Klein, F. J.; 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.; Rizzo, A.; Rosner, G.; Rowley, J.; Sabatie, F.; Salgado, C.; Schmidt, A.; Schumacher, R. A.; 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, K.; Wei, X.; Wood, M. H.; Yale, B.; Zachariou, N.; Zhang, J.; Zhao, Z. W.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2473579
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