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.

Finite-energy sum rules in eta photoproduction off a nucleon

Pilloni A.;
2017-01-01

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
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11570/3208700
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