The only recent eta' photoproduction data off proton available in literature are the differential and total cross sections published by the CLAS and CB-ELSA-TAPS Collaborations. However, the wide information about reaction cross sections are not sufficient to understand the role of resonances involved in the process. Different theoretical works stressed the importance to measure also polarization observables in order to solve the ambiguities in the choice of the parameters used in their models. We present the analysis of eta' photoproduction off the proton analysis, identifying the investigated meson by the pi(+)pi(-)eta, pi(0)pi(0)eta, and gamma gamma decay modes by using the GRAAL apparatus; and we show the preliminary GRAAL results on the beam asymmetry Sigma at beam energy of 1475 MeV.

Mandaglio, G., Bellini, V., Bocquet, J.p., Capogni, M., Curciarello, F., D'Angelo, A., et al. (2014). Beam asymmetry Σ in η′ photoproduction off the proton at the GRAAL experiment. EPJ WEB OF CONFERENCES, 73, 04006 [10.1051/epjconf/20147304006].

Beam asymmetry Σ in η′ photoproduction off the proton at the GRAAL experiment

D'Angelo, A.
Membro del Collaboration Group
;
Fantini, A.;Franco, D.
Membro del Collaboration Group
;
Schaerf, C.;Vegna, V.;Zonta, I.
2014-01-01

Abstract

The only recent eta' photoproduction data off proton available in literature are the differential and total cross sections published by the CLAS and CB-ELSA-TAPS Collaborations. However, the wide information about reaction cross sections are not sufficient to understand the role of resonances involved in the process. Different theoretical works stressed the importance to measure also polarization observables in order to solve the ambiguities in the choice of the parameters used in their models. We present the analysis of eta' photoproduction off the proton analysis, identifying the investigated meson by the pi(+)pi(-)eta, pi(0)pi(0)eta, and gamma gamma decay modes by using the GRAAL apparatus; and we show the preliminary GRAAL results on the beam asymmetry Sigma at beam energy of 1475 MeV.
2014
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
English
Con Impact Factor ISI
https://www.epj-conferences.org/articles/epjconf/pdf/2014/10/epjconf_menu2013_04006.pdf
Mandaglio, G., Bellini, V., Bocquet, J.p., Capogni, M., Curciarello, F., D'Angelo, A., et al. (2014). Beam asymmetry Σ in η′ photoproduction off the proton at the GRAAL experiment. EPJ WEB OF CONFERENCES, 73, 04006 [10.1051/epjconf/20147304006].
Mandaglio, G; Bellini, V; Bocquet, Jp; Capogni, M; Curciarello, F; D'Angelo, A; De leo, V; Didelez, Jp; Di Salvo, R; Fantini, A; Franco, D; Gervino, G...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/207303
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