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HK: Physik der Hadronen und Kerne
HK 32: Electromagnetic and Hadronic Probes IV
HK 32.2: Talk
Wednesday, March 13, 2002, 14:30–14:45, D
Static Magnetic Moment of the Δ+(1232) — •Martin Kotulla — II. Physikalisches Institut, Heinrich-Buff-Ring 16, 35392 Giessen
Static magnetic moments of baryons are important properties which provide a crucial test for hadron structure calculations. SU(3) e.g., predicts µΔ = Q(Δ) µp for the Δ isobars. Information on µΔ+ can be obtained from the observation of a γ transition within the Δ resonance. Therefore, the reaction γ p→π∘γ′ p was measured with the BaF2 calorimeter TAPS at the Mainz Microtron accelerator facility. The extraction of µΔ+, however, requires the application of a reaction model. The experimental results will be presented and the feasibility to extract µΔ+ based on theoretical models [1],[2] will be discussed.
[1] D. Drechsel, M. Vanderhaeghen, Phys.Rev.C64:065202,2001
[2] A.I. Machavariani, A. Faessler, to be submitted