The reaction at energies up to 5.8 GeV

Hilpert, H.G.; Reimann, G.; Schüttler, E.; Böttcher, H.; Lanius, K.; Meyer, A.; Pose, A.; Böckmann, K.; Johnssen, W.; Moebes, J.; Tejessy, W.; Harigel, G.; Horlitz, G.; Lohrmann, E.; Meyer, H.; Wolf, G.; Swanson, W.P.; Teucher, M.; Lüke, D.; Mönkemeyer, D.; Söding, P.; Spitzer, H.; Beisel, H.; Filthuth, H.; Kolar, H.; Steffen, P.; Freund, P.; Schmitz, N.; Seyboth, P.; Seyerlein, J.

doi:10.1016/0031-9163(66)91107-3

Cited by 17 publications

(3 citation statements)

References 8 publications

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“…Therefore, γp → pπ + π − had been the only isospin channel measured with reasonable precision. Total cross sections and invariant mass distributions of the π + π − -, pπ + -, and pπ − -pairs are available in the literature [275]- [280]. New interest arose during the last few years when the isospin channels with neutral particles became accessible.…”

Section: Double Pion-photoproductionmentioning

confidence: 99%

Study of non-strange baryon resonances with meson photoproduction

Krusche

Schadmand

2003

Progress in Particle and Nuclear Physics

179

194

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Photoproduction of mesons is an excellent tool for the study of nucleon resonances. Complementary to pion induced reactions, photoproduction on the free proton contributes to the determination of the basic properties of nucleon resonances like excitation energy, decay widths, spin, and the coupling to the photon. Photoproduction from light nuclei, in particular from the deuteron, reveals the isospin structure of the electromagnetic excitation of the nucleon. During the last few years, progress in this field has been substantial. New accelerator facilities combined with state-of-theart detector technologies have pushed the experiments to unprecedented sensitivity and precision. The experimental progress has been accompanied by new developments for the reaction models, necessary to extract the properties of the nucleon states, and for modern hadron models which try to connect these properties to QCD. The emphasis of this review lies on the experimental side and focuses on experiments aiming at precise studies of the low-lying nucleon resonances.

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Section: Double Pion-photoproductionmentioning

confidence: 99%

Study of non-strange baryon resonances with meson photoproduction

Krusche

Schadmand

2003

Progress in Particle and Nuclear Physics

179

194

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“…These reactions have been extensively studied experimentally in the past ( [1,2,3,4,5,6,7]). New improvements in experimental techniques and facilities have reopened the study of these reactions at Mainz, with two experiments on the proton [8,9].…”

Section: Introductionmentioning

confidence: 99%

“…However, the Lagrangian of Eq. (7) gives only the decay into s-wave, not d-wave 2 . Then, we have modified the Lagrangian of Eq.…”

Section: Introductionmentioning

confidence: 99%

Double pion photoproduction on the nucleon: study of the isospin channels

1996

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A model for the γp → π + π − p reaction developed earlier is extended to account for all isospin channels. The model includes N , ∆(1232), N * (1440) and N * (1520) as intermediate baryonic states and the ρ-meson as an intermediate 2π resonance. Although many terms contribute to the cross section, some channels exhibit particular sensitivity to certain mechanisms of resonance excitation or decay and the reactions provide novel information on such mechanisms. In particular the γN → N * (1520) → ∆π process affects all the channels and is a key ingredient in the interpretation of the data. Comparison is made with all available data and the agreement is good in some channels. The remaining discrepancies in some other channels are discussed.

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Double Pion Photoproduction Experiments

Krusche

1999

N* Physics and Nonperturbative Quantum Chromodynamics

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The reaction at energies up to 5.8 GeV

Cited by 17 publications

References 8 publications

Study of non-strange baryon resonances with meson photoproduction

Study of non-strange baryon resonances with meson photoproduction

Double pion photoproduction on the nucleon: study of the isospin channels

Double Pion Photoproduction Experiments

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