The reaction gamma p -> K*(+)Lambda 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 Lambda 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*Lambda for these resonances and further resonances are reported. (C) 2017 The Author. Published by Elsevier B.V.

Anisovich, A.V., Hicks, K., Klempt, E., Nikonov, V.A., Sarantsev, A., Tang, W., et al. (2017). Differential cross sections and polarization observables from CLAS K⁎photoproduction and the search for new N⁎states. PHYSICS LETTERS. SECTION B, 771, 142-150 [10.1016/j.physletb.2017.05.029].

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

D'Angelo A.
Membro del Collaboration Group
;
Pisano S.;Zonta I.
2017-05-16

Abstract

The reaction gamma p -> K*(+)Lambda 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 Lambda 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*Lambda for these resonances and further resonances are reported. (C) 2017 The Author. Published by Elsevier B.V.
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/04 - Fisica Nucleare e Subnucleare
English
Con Impact Factor ISI
Baryon spectroscopy; Meson photoproduction; Polarization observables
CLAS Collaboration
Anisovich, A.V., Hicks, K., Klempt, E., Nikonov, V.A., Sarantsev, A., Tang, W., et al. (2017). Differential cross sections and polarization observables from CLAS K⁎photoproduction and the search for new N⁎states. PHYSICS LETTERS. SECTION B, 771, 142-150 [10.1016/j.physletb.2017.05.029].
Anisovich, Av; Hicks, K; Klempt, E; Nikonov, Va; Sarantsev, A; Tang, W; Adikaram, D; Akbar, Z; Amaryan, Mj; Anefalos Pereira, S; Badui, Ra; Ball, J; Battaglieri, M; Batourine, V; Bedlinskiy, I; Biselli, As; Briscoe, Wj; Burkert, Vd; Carman, Ds; Celentano, A; Chandavar, S; Chetry, T; Ciullo, G; Clark, L; Cole, Pl; 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, Ja; Gevorgyan, N; Ghandilyan, Y; Giovanetti, Kl; Girod, Fx; Gleason, C; Gothe, Rw; Griffioen, Ka; Guo, L; Hanretty, C; Harrison, N; Hattawy, M; Holtrop, M; Hughes, Sm; Ilieva, Y; Ireland, Dg; Ishkhanov, Bs; Isupov, El; Jenkins, D; Jiang, H; Jo, Hs; Joosten, S; Keller, D; Khachatryan, G; Khandaker, M; Kim, W; Klein, Fj; Kubarovsky, V; Lanza, L; Lenisa, P; Livingston, K; Macgregor, Ijd; Markov, N; Mckinnon, B; Meyer, Ca; Mirazita, M; Mokeev, V; Montgomery, Ra; Movsisyan, A; Munevar, E; Munoz Camacho, C; Murdoch, G; Nadel-Turonski, P; Net, La; Ni, A; Niccolai, S; Niculescu, I; Osipenko, M; Ostrovidov, Ai; Paolone, M; Paremuzyan, R; Park, K; Pasyuk, E; Peng, P; Phelps, W; Pisano, S; Pogorelko, O; Price, Jw; Prok, Y; Puckett, Ajr; Raue, Ba; Ripani, M; Ritchie, Bg; Rosner, G; Roy, P; Sabatie, F; Schumacher, Ra; Sharabian, Yg; Skorodumina, I; Smith, Gd; Sokhan, D; Sparveris, N; Stankovic, I; Stepanyan, S; Strauch, S; Sytnik, V; Tian, Y; Ungaro, M; Voskanyan, H; Voutier, E; Walford, Nk; Watts, Dp; Wood, Mh; Zachariou, N; Zhang, J; Zonta, I
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/194442
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