Article,

THE PYGMY DIPOLE RESONANCE IN Sn-124

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ACTA PHYSICA POLONICA B, 43 (2): 333-338 (February 2012)32nd Mazurian Lakes Conference on Physics, Piaski, POLAND, SEP 11-18, 2011.
DOI: 10.5506/APhysPolB.43.333

Abstract

Dipole transitions in the semi-magic nucleus Sn-124 have been investigated by means of real photon scattering in order to complete a previous measurement. The experiment was performed at the superconducting Darmstadt electron linear accelerator S-DALINAC using an unpolarized, continuous spectrum of bremsstrahlung with an endpoint energy of approximately 7.8 MeV. A concentration of dipole transitions in the energy range between 5 and 7 MeV stemming from the pygmy dipole resonance (PDR) could be identified. Some of these states have been observed in an (alpha, alpha'gamma) experiment for the first time and could now be confirmed in our measurement.

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