157 citations · 288 across the 14 of their papers we have counts for
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Lower Bound on the Pion Polarizability from QCD Sum Rules
M. Benmerrouche, G. Orlandini, T. G. Steele
Making use of QCD sum rules a lower bound is found which relates the electromagnetic polarizability and mean-square radius of charged pions through…
Photoproduction of Etas and N(1535) Electrostrong Properties
Nimai C. Mukhopadhyay, J. -F. Zhang, M. Benmerrouche
From the new Mainz data of eta photoproduction off protons\cite{ref1} and deuterons\cite{ref2}, we can extract, via the effective Lagrangian approach (ELA)\cite{ref3}, the electros…
Extraction of the Ratio of the N^*(1535) Electromagnetic Helicity Amplitudes from Eta Photoproduction off Neutrons and Protons
Nimai C. Mukhopadhyay, J. -F. Zhang, M. Benmerrouche
Using the recent precise measurements of eta photopro- duction in proton and deuteron targets, we extract the ratio of the helicity amplitudes A^n_1/2 / A^p_1/2, for the excitation…
Photoproduction of the Etas near Threshold
Nimai C. Mukhopadhyay, J. -F. Zhang, M. Benmerrouche
We extract a parameter , a characteristic product of the strong and electromagnetic amplitudes for the N^*(1535), to be (2.20+-0.15) in unit of 10^(-4)MeV^(-1) from the new data…
Photo- and electroproduction of the eta and eta-prime mesons
Nimai C. Mukhopadhyay, J. -F. Zhang, M. Benmerrouche
We discuss the eta and eta prime photo- and electroproduction as a way to probe the nucleon resonance structure.
Constraints on QCD Sum-rules from the Hölder Inequalities
M. Benmerrouche, G. Orlandini, T. G. Steele
A new technique based on Hölder's integral inequality is applied to QCD sum-rules to provide fundamental constraints on the sum-rule parameters. These constraints must be satisfied…
Photoproduction of the Eta-Prime Mesons as a New Tool to Probe Baryon Resonances
J. -F. Zhang, Nimai C. Mukhopadhyay, M. Benmerrouche
We examine eta prime photoproduction, as a novel tool to study baryon resonances around 2 GeV, of particular interest to the quark shell model, which predicts a number of them. We…