Theoretical study of coherent pion photoproduction on the deuteron

Lazard, C.; Lombard, R.J.; Marić, Z.

doi:10.1016/0375-9474(76)90247-5

Cited by 27 publications

(9 citation statements)

References 41 publications

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“…[2]) gave clear indication of important rescattering effects.In most of former work, see e.g. [3][4][5], the rescattering of the pion was taken into account only perturbatively. For a recent study including single-and double-scattering diagrams, we refer to the work of Garcilazo and Moya de Guerra [6].…”

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confidence: 99%

Rescattering effects in coherent pion photoproduction on the deuteron in the Δ resonance region

Wilhelm

Arenhövel

1996

Nuclear Physics A

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Within a dynamical model, rescattering effects are studied in coherent pion photoproduction on the deuteron in the ∆(1232) resonance region. The model consists of a system of coupled equations for the N∆, NNπ and NN channels. Pion rescattering leads in general to a significant reduction of total and differential cross sections resulting in a better description of experimental data. Only a few polarization observables are sensitive to rescattering effects.In particular T 20 allows an analysis of the reaction mechanism for specific kinematics. The question how rescattering affects the sensitivity to the E2 excitation of the ∆ resonance is also studied. PACS numbers: 13.60. Le, 21.45.+v, 25.20.Lj Typeset using REVT E X * Supported by the Deutsche Forschungsgemeinschaft (SFB 201)

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confidence: 99%

Rescattering effects in coherent pion photoproduction on the deuteron in the Δ resonance region

Wilhelm

Arenhövel

1996

Nuclear Physics A

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“…4 The γd → πNN amplitude A plane wave impulse approximation usually serves as the starting point to calculate the amplitude for electromagnetic pion production on the deuteron [40,41,42,43] or on a nucleus in general. It corresponds to a direct embedding of the elementary amplitudes into the two-nucleon system.…”

Section: Process On the Deuteronmentioning

confidence: 99%

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2021

Sohag J. Sci

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Incoherent pion photoproduction on the deuteron in the ∆ (1232)-resonance region is investigated with special emphasis on polarization observables. For the elementary pion photoproduction operator an effective Lagrangian model which includes the standard pseudovector Born terms and a resonance contribution from the ∆ (1232)-excitation is used. Our results for the elementary γN → πN reaction are in good agreement with recent experimental data and results of other theoretical calculations. A general analysis of all possible polarization observables for the γd → πNN reaction with polarized photon beam and/or oriented deuteron target is presented. The unpolarized differential cross section, photon asymmetry, vector and tensor target asymmetries are predicted for forthcoming experiments.

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“…4 The γd → πNN amplitude A plane wave impulse approximation usually serves as the starting point to calculate the amplitude for electromagnetic pion production on the deuteron [18,19,20,21] or on a nucleus in general. It corresponds to a direct embedding of the elementary amplitudes into the two-nucleon system.…”

Section: Process On the Deuteronmentioning

confidence: 99%

POLARIZATION OBSERVABLES OF THE γd→πNN REACTION IN THE Δ(1232)-RESONANCE REGION

Darwish

2004

Int. J. Mod. Phys. E

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Polarization observables of the three charge states of the pion for the γd → πN N reaction with polarized photon beam and/or oriented deuteron target are evaluated over the whole ∆(1232)-resonance region adopting a nonrelativistic model based on time-ordered perturbation theory. Results for the π-meson spectra, linear photon asymmetry, vector and tensor target asymmetries are presented. Particular attention is given, for the first time, to double polarization asymmetries for which we present results for T ℓ 20 and T ℓ 2±2 . We found that all other double polarization asymmetries of photon and deuteron target are vanished. *

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Theoretical study of coherent pion photoproduction on the deuteron

Cited by 27 publications

References 41 publications

Rescattering effects in coherent pion photoproduction on the deuteron in the Δ resonance region

Rescattering effects in coherent pion photoproduction on the deuteron in the Δ resonance region

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POLARIZATION OBSERVABLES OF THE γd→πNN REACTION IN THE Δ(1232)-RESONANCE REGION

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