Differential cross sections of the reaction gamma d -> K(+)Sigma(-)(p) have been measured with the CLAS detector at Jefferson Lab using incident photons with energies between 1.1 and 3.6 GeV. This is the first complete set of strangeness photoproduction data on the neutron covering a broad angular range. At energies close to threshold and up to E(gamma) similar to 1.8 GeV. the shape of the angular distribution is suggestive of the presence of s-channel production mechanisms. For E(gamma) > 1.8 GeV, a clear forward peak appears and becomes more prominent as the photon energy increases, suggesting contributions from t-channel production mechanisms. These data can be used to constrain future analysis of this reaction.

Pereira, S., Mirazita, M., Rossi, P., De Sanctis, E., Niculescu, G., Niculescu, I., et al. (2010). Differential cross section of γn→K+Σ−γn→K+Σ− on bound neutrons with incident photons from 1.1 to 3.6 GeV. PHYSICS LETTERS. SECTION B, 688(4-5), 289-293 [10.1016/j.physletb.2010.04.028].

Differential cross section of γn→K+Σ−γn→K+Σ− on bound neutrons with incident photons from 1.1 to 3.6 GeV

D'ANGELO, ANNALISA;PISANO, SILVIA;
2010-05-10

Abstract

Differential cross sections of the reaction gamma d -> K(+)Sigma(-)(p) have been measured with the CLAS detector at Jefferson Lab using incident photons with energies between 1.1 and 3.6 GeV. This is the first complete set of strangeness photoproduction data on the neutron covering a broad angular range. At energies close to threshold and up to E(gamma) similar to 1.8 GeV. the shape of the angular distribution is suggestive of the presence of s-channel production mechanisms. For E(gamma) > 1.8 GeV, a clear forward peak appears and becomes more prominent as the photon energy increases, suggesting contributions from t-channel production mechanisms. These data can be used to constrain future analysis of this reaction.
10-mag-2010
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
English
Con Impact Factor ISI
Photoproduction; Hyperon; Strangeness; Missing resonances; Nucleon resonance; DEUTERON PHOTODISINTEGRATION; NONSTRANGE BARYONS; SIGMA(0); LAMBDA; PHOTOPRODUCTION; ENERGIES; MODEL; RESONANCES; DECAYS; PROTON
Clas Collaboration
http://www.sciencedirect.com/science/article/pii/S0370269310004788
Pereira, S., Mirazita, M., Rossi, P., De Sanctis, E., Niculescu, G., Niculescu, I., et al. (2010). Differential cross section of γn→K+Σ−γn→K+Σ− on bound neutrons with incident photons from 1.1 to 3.6 GeV. PHYSICS LETTERS. SECTION B, 688(4-5), 289-293 [10.1016/j.physletb.2010.04.028].
Pereira, S; Mirazita, M; Rossi, P; De Sanctis, E; Niculescu, G; Niculescu, I; Stepanyan, S; Adhikari, K; Aghasyan, M; Anghinolfi, M; Baghdasaryan, H; Ball, J; Battaglieri, M; Berman, B; Biselli, A; Bookwalter, C; Branford, D; Briscoe, W; Brooks, W; Burkert, V; Careccia, S; Carman, D; Cole, P; Collins, P; Crede, V; D'Angelo, A; Daniel, A; Dashyan, N; De Vita, R; Deur, A; Dey, B; Dhamija, S; Dickson, R; Djalali, C; Doughty, D; Dugger, M; Dupre, R; El Alaoui, A; Eugenio, P; Fegan, S; Forest, T; Gabrielyan, M; Gavalian, G; Gilfoyle, G; Giovanetti, K; Girod, F; Goetz, J; Gohn, W; Gothe, R; Griffioen, K; Guidal, M; Guler, N; Guo, L; Hakobyan, H; Hanrett, C; Hassall, N; Hicks, K; Holtrop, M; Ilieva, Y; Ireland, D; Ishkhanov, B; Jawalkar, S; Jo, H; Joo, K; Keller, D; Khandaker, M; Khetarpal, P; Kim, W; Klein, F; Kubarovsky, V; Kuleshov, S; Kuznetsov, V; Livingston, K; Mayer, M; Mccracken, M; Mckinnon, B; Meyer, C; Mikhailov, K; Mineeva, T; Mokeev, V; Moreno, B; Moriya, K; Morrison, B; Moutarde, H; Munevar, E; Nadel Turonski, P; Niccolai, S; Osipenko, M; Ostrovidov, A; Park, K; Park, S; Pasyuk, E; Perrin, Y; Pisano, S; Pogorelko, O; Pozdniakov, S; Price, J; Procureur, S; Prok, Y; Protopopescu, D; Raue, B; Ricco, G; Ripani, M; Ritchie, B; Rosner, G; Sabatie, F; Saini, M; Salamanca, J; Salgado, C; Schumacher, R; Seder, E; Seraydaryan, H; Sharabian, Y; Sober, D; Sokhan, D; Stepanyan, S; Stoler, P; Strakovsky, I; Strauch, S; Tedeschi, D; Tkachenko, S; Vernarsky, B; Vineyard, M; Voutier, E; Watts, D; Weygand, D; Wood, M; Zana, L; Zhang, J; Zhao, B
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/37908
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