Field-theoretical description of electromagnetic Δ resonance production and determination of the magnetic moment of the Δ+(1232) resonance by the ep→ e′ N′ π …
AI Machavariani, A Faessler, AJ Buchmann - Nuclear Physics A, 1999 - Elsevier
The ep→ e′ N′ π′ γ′ and γp→ N′ π′ γ′ reactions in the Δ resonance region are
investigated in the framework of the relativistic field-theoretical spectral decomposition
method for the γ∗ N→ γ′ π′ N′ transition amplitude. This approach allows us to express
the amplitude through three-dimensional diagrams with on-mass shell intermediate states.
The Δ resonance is constructed as intermediate cluster state| ΨΔ〉 with real bare mass
MΔ∼ 1232 MeV and with a complex propagator of Breit-Wigner shape for the P33 πN …
investigated in the framework of the relativistic field-theoretical spectral decomposition
method for the γ∗ N→ γ′ π′ N′ transition amplitude. This approach allows us to express
the amplitude through three-dimensional diagrams with on-mass shell intermediate states.
The Δ resonance is constructed as intermediate cluster state| ΨΔ〉 with real bare mass
MΔ∼ 1232 MeV and with a complex propagator of Breit-Wigner shape for the P33 πN …
Field-theoretical description of electromagnetic {delta} resonance production and determination of the magnetic moment of the {delta}{sup+}(1232) resonance by the …
AI Machavariani, A Faessler, AJ Buchmann - Nuclear Physics. A, 1999 - osti.gov
The ep {yields} e'N'{pi}'{gamma}'and {gamma} p {yields} N'{gamma}'{gamma}'reactions in the
{delta} resonance region are investigated in the framework of the relativistic field-theoretical
spectral decomposition method for the {gamma}* N {yields}{gamma}'{pi}'N'transition
amplitude. This approach allows us to express the amplitude through three-dimensional
diagrams with on-mass shell intermediate states. The {delta} resonance is constructed as
intermediate cluster state vertical bar {psi}{sub {delta}}> with real bare mass M {sub …
{delta} resonance region are investigated in the framework of the relativistic field-theoretical
spectral decomposition method for the {gamma}* N {yields}{gamma}'{pi}'N'transition
amplitude. This approach allows us to express the amplitude through three-dimensional
diagrams with on-mass shell intermediate states. The {delta} resonance is constructed as
intermediate cluster state vertical bar {psi}{sub {delta}}> with real bare mass M {sub …