Incoherent pion photoproduction on the deuteron in the first resonance region

M. I. Levchuk, A. Yu Loginov, A. A. Sidorov, V. N. Stibunov, M. Schumacher

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Incoherent pion photoproduction on the deuteron is studied in the first resonance region. The unpolarized cross section, the beam asymmetry, and the vector and tensor target asymmetries are calculated in the framework of a diagrammatic approach. Pole diagrams and one-loop diagrams with NN scattering in the final state are taken into account. An elementary operator for pion photoproduction on the nucleon is taken in various on-shell forms and calculated using the SAID and MAID multipole analyses. Model dependence of the obtained results is discussed in some detail. A comparison with predictions of other works is given. Although a reasonable description of many available experimental data on the unpolarized total and differential cross sections and photon asymmetry has been achieved, in some cases a significant disagreement between the theory and experiment has been found. Invoking known information on the reactions γd→π0d and γd→np we predict the total photoabsorption cross section for deuterium. We find that our values strongly overestimate experimental data in the vicinity of the Δ peak.

Original languageEnglish
Article number014004
JournalPhysical Review C - Nuclear Physics
Volume74
Issue number1
DOIs
Publication statusPublished - 1 Jan 2006

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photoproduction
deuterons
pions
asymmetry
cross sections
diagrams
photoabsorption
multipoles
deuterium
poles
tensors
operators
photons
predictions
scattering

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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Incoherent pion photoproduction on the deuteron in the first resonance region. / Levchuk, M. I.; Loginov, A. Yu; Sidorov, A. A.; Stibunov, V. N.; Schumacher, M.

In: Physical Review C - Nuclear Physics, Vol. 74, No. 1, 014004, 01.01.2006.

Research output: Contribution to journalArticle

Levchuk, M. I. ; Loginov, A. Yu ; Sidorov, A. A. ; Stibunov, V. N. ; Schumacher, M. / Incoherent pion photoproduction on the deuteron in the first resonance region. In: Physical Review C - Nuclear Physics. 2006 ; Vol. 74, No. 1.
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