The reaction γρ→π⁰γ′ρ and the magnetic dipole moment of the Δ+(1232) resonance

M. Kotulla,J. Ahrens,J. R. M. Annand,R. Beck,G. Caselotti,L. S. Fog,D. Hornidge,S. Janssen,B. Krusche,J. C. McGeorge,I. J. D. McGregor,K. Mengel,J. G. Messchendorp,V. Metag,R. Novotny,M. Pfeiffer,M. Rost,S. Sack,R. Sanderson,S. Schadmand,D. P. Watts

The reaction γρ→π⁰γ′ρ and the magnetic dipole moment of the Δ+(1232) resonance

2002

The reaction gammap-Microtron accelerator facility MAMI for energies between roots=1221-1331 MeV. The cross section`s differential in angle and energy have been determined for the photon gamma(′) in three bins of the excitation energy. This reaction channel provides access to the magnetic dipole moment of the Delta(+)(1232) resonance and, for the first time, a value of mu(Delta)(+)=[2.7(-1.3)(+1.0)(stat)+/-1.5(syst)+/-3(theor)]mu(N) has been extracted.

Keywords:

Pi
Nuclear physics
Excitation
Atomic physics
Resonance
Microtron
Magnetic moment
Physics
Photon
Calorimeter
Nuclear magnetic resonance

Correction
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