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19952016
most citedWhat is the structure of the Roper resonance?

231 citations · 2.4k across the 78 of their papers we have counts for

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Showing 2005Show all

6 papers · 1 filter

nucl-th2005

Gauge-Invariant Approach to Meson Photoproduction Including the Final-State Interaction

H. Haberzettl, K. Nakayama, S. Krewald

A gauge-invariant formalism is presented for the practical treatment of photo- and electroproduction of pseudoscalar mesons off nucleons that allows an explicit incorporation of ha…

hep-ph2005★ 17 cited

KKbar photoproduction from protons

A. Sibirtsev, J. Haidenbauer, S. Krewald +2

We study the contribution of the Drell mechanism driven by K^+ and K^- exchange to the reaction gamma N -> KKbar N. Our calculation implements the full KN and KbarN reaction amplit…

nucl-ex2005★ 31 cited

Evidence for an Excited Hyperon State in pp -> p K^+ Y^{0*}

I. Zychor, V. Koptev, M. Büscher +10

Indications for the production of a neutral excited hyperon in the reaction pp -> p K^+ Y^{0*} are observed in an experiment performed with the ANKE spectrometer at COSY-Jülich at…

hep-ex2005★ 18 cited

Antiproton--Proton Scattering Experiments with Polarization

Paolo Lenisa, Frank Rathmann

The document describes the physics case of the PAX experiment using polarized antiprotons, which has recently been proposed for the new Facility for Antiprotons and Ions Research (…

nucl-th2005★ 7 cited

The K^- αscattering length and the reaction dd \to αK^+ K^-

V. Yu. Grishina, L. A. Kondratyuk, A. Sibirtsev +4

We present predictions for the the K^- αscattering length obtained within the framework of the multiple scattering approach. Evaluating the pole position of the K^- αscattering amp…

nucl-ex2005

Indication of an excited hyperon state in pp collisions with ANKE at COSY-Juelich

I. Zychor, V. Koptev, M. Buescher +10

The reaction pp->pK+Y has been studied with the ANKE spectrometer at COSY-Juelich in order to investigate heavy hyperon production. The missing mass spectra MM(pK+) have been analy…