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HK: Hadronen und Kerne

HK 16: Spectroscopy: 17 ≤ A ≤ 70

HK 16.4: Talk

Monday, March 16, 1998, 17:45–18:00, D

Inelastic photon scattering off the semi-magic nucleus ⁵¹V^⋆ — •H. Kaiser¹, P. von Brentano², J. Eberth², J. Enders¹, A. Fitzler², C. Fransen², R.-D. Herzberg², L. Käubler³, H. Lenske⁴, P. von Neumann-Cosel¹, N. Pietralla², H. Prade³, A. Richter¹, H. Schnare³, R. Schwengner³, S. Skoda², H.G. Thomas², H. Tiesler², D. Weisshaar², I. Wiedenhöver², and A. Zilges¹ — ¹Institut für Kernphysik, Technische Universität Darmstadt, Germany — ²Institut für Kernphysik, Universität zu Köln, Germany — ³Institut für Kern- und Hadronenphysik, FZ Rossendorf, Germany — ⁴Institut für Theoretische Physik, Justus-Liebig-Universität Gießen, Germany

The odd-mass N=28 nucleus ⁵¹V was investigated in nuclear resonance fluorescence with bremsstrahlung up to an endpoint energy of 6.7 MeV at the superconducting Darmstadt electron accelerator S-DALINAC. The experimental data were taken with two EUROBALL-Cluster detectors. We present detailed information on the fine structure of dipole excitations and compare our results with QRPA calculations. In addition, the coupling of the odd particle to the strong electric dipole state in the neighbouring ⁵²Cr nucleus [1] is discussed with respect to similar cases in heavy nuclei [2].

[1] J. Enders et al., subm. to Nucl. Phys. A

[2] A. Zilges et al., Phys. Rev. Lett. 70 (1993) 2880 ^⋆ Supported by DFG under contracts Ri 242/12-1 and Br 799/6-2 and by BMBF under 06 OK 862 I and 06 DR 666 I.