The reaction γN→ηN is studied in the high-energy regime (with photon lab energies Eγlab>4 GeV) using information from the resonance region through the use of finite-energy sum rules. We illustrate how analyticity allows one to map the t dependence of the unknown Regge residue functions. We provide predictions for the energy dependence of the beam asymmetry at high energies. © 2017 American Physical Society.
Finite-energy sum rules in eta photoproduction off a nucleon / Nys, J.; Mathieu, V.; Fernandez Ramirez, C.; Hiller Blin, A. N.; Jackura, A.; Mikhasenko, M.; Pilloni, Alessandro; Szczepaniak, A. P.; Fox, G.; Ryckebusch, J.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - STAMPA. - 95:3(2017). [10.1103/PhysRevD.95.034014]
Finite-energy sum rules in eta photoproduction off a nucleon
PILLONI, ALESSANDRO;
2017
Abstract
The reaction γN→ηN is studied in the high-energy regime (with photon lab energies Eγlab>4 GeV) using information from the resonance region through the use of finite-energy sum rules. We illustrate how analyticity allows one to map the t dependence of the unknown Regge residue functions. We provide predictions for the energy dependence of the beam asymmetry at high energies. © 2017 American Physical Society.| File | Dimensione | Formato | |
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