Spin Asymmetry and Gerasimov-Drell-Hearn Sum Rule for the Deuteron

Abstract

An explicit evaluation of the spin asymmetry of the deuteron and the associated GDH sum rule is presented which includes photodisintegration, single and double pion and eta production as well. Photodisintegration is treated with a realistic retarded potential and a corresponding meson exchange current. For single pion and eta production the elementary operator from MAID is employed whereas for double pion production an effective Lagrangean approach is used. A large cancellation between the disintegration and the meson production channels yields for the explicit GDH integral a value of 27.31 $\mu$b to be compared to the sum rule value 0.65 $\mu$b.

arXiv comment4 pages, 5 figures, revtex4

References in corpus (4)

• A unitary isobar model for pion photo- and electroproduction on the proton up to 1 GeV
• Double Pion Photoproduction on the Nucleon: Study of the Isospin Channels
• Final state interaction in spin asymmetry and GDH sum rule for incoherent pion production on the deuteron
• The Role of Meson Retardation in Deuteron Photodisintegration above Pion Threshold

Cited by in corpus (17)

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• Double pion photoproduction on nucleon and deuteron
• Photoproduction of eta-mesons on the deuteron above S11(1535) in the presence of a narrow P11(1670) resonance
• Moments of the Spin Structure Functions g_1^p and g_1^d for 0.05 < Q^2 < 3.0 GeV^2
• Incoherent pion photoproduction on the deuteron with polarization observables II: Influence of final state rescattering
• Hadron structure at low Q^2
• Incoherent pion photoproduction on the deuteron with polarization observables I: Formal expressions
• The Gerasimov-Drell-Hearn Sum Rule
• Helicity-dependent reaction \vec γ\vec d\to πNN and its contribution to the GDH sum rule for the deuteron
• Photodisintegration of aligned deuterons at astrophysical energies using linearly polarized photons
• Drell-Hearn-Gerasimov Sum-Rule for the Deuteron in Nuclear Effective Field Theory
• Spin degrees and Polarization Observables in Electromagnetic Reactions
• The NN final-state interaction in the helicity structure of $\vec{d}(\vec{\gamma },{\pi }^{-})pp$ reaction
• The role of pion exchange in $\eta$ meson photo production on the deuteron
• Photoproduction of ${\pi }^0$-Mesons on the Nucleon and Deuteron
• The Gerasimov-Drell-Hearn sum-rule with nuclear targets
• Contribution of single pion electroproduction to the generalized Gerasimov-Drell-Hearn sum rule for the deuteron