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Unitary isobar model --MAID2007
Abstract.The unitary isobar model MAID2007 has been developed to analyze the world data of pion photo- and electroproduction. The model contains both a common background and several resonance terms.Expand
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A unitary isobar model for pion photo- and electroproduction on the proton up to 1 GeV
Abstract A new operator for pion photo- and electroproduction has been developed for nuclear applications at photon equivalent energies up to 1 GeV. The model contains Born terms, vector mesons andExpand
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Dispersion relations in real and virtual Compton scattering
Abstract A unified presentation is given on the use of dispersion relations in the real and virtual Compton scattering processes off the nucleon. The way in which dispersion relations for ComptonExpand
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Higher order polarizabilities of the proton
Compton scattering results are used to probe proton structure via measurement of higher order polarizabilities. Values forp2 ,� p E2 ,� p Eν , � p determined via dispersion relations are compared toExpand
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Proton spin polarizabilities from polarized Compton scattering
Polarized Compton scattering off the proton is studied within the framework of subtracted dispersion relations for photon energies up to 300 MeV. As a guideline for forthcoming experiments, we focusExpand
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Dispersion-theoretical analysis of the nucleon electromagnetic form factors
Abstract Dispersion relations allow for a coherent description of the nucleon electromagnetic form factors measured over a large range of momentum transfer, Q 2 ⋍ 0–35 GeV 2 . Including constraintsExpand
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Electromagnetic excitation of nucleon resonances
Recent progress on the extraction of electromagnetic properties of nucleon resonance excitation through pion photo- and electroproduction is reviewed. Cross section data measured at MAMI, ELSA, andExpand
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Structure analysis of the virtual Compton scattering amplitude at low energies
Published in: Phys. Rev. C 57 (1998) 941-952 Citing articles (CrossRef) citations recorded in [Science Citation Index] Abstract: We analyze virtual Compton scattering (VCS) off the nucleon at lowExpand
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THE GERASIMOV-DRELL-HEARN SUM RULE AND THE SPIN STRUCTURE OF THE NUCLEON
▪ Abstract The Gerasimov-Drell-Hearn sum rule is one of several dispersive sum rules that connect the Compton scattering amplitudes to the inclusive photoproduction cross sections of the target underExpand
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The GDH Sum Rule and Related Integrals
Since the end of the 1970’s, the spin structure of the nucleon has been studied by scattering polarized lepton beams off polarized targets. The aim of such experiments has been to measure the spinExpand
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