Bochum 2009 – wissenschaftliches Programm

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HK: Fachverband Hadronen und Kerne

HK 71: Nuclear Structure and Dynamics I

HK 71.5: Vortrag

Donnerstag, 19. März 2009, 18:15–18:30, H-ZO 40

Wavelet Analysis and Characteristic Scales of Dipole and Quadrupole Giant Resonances in ²⁸Si, ⁴⁰Ca, ⁴⁸Ca and ¹⁶⁶Er ^* — •Inna Pysmenetska, Peter von Neumann-Cosel, and Achim Richter — Institut für Kernphysik, TU Darmstadt, Germany

Modern experiments allow to study the fine structure of giant re-sonances even in heavy nuclei. A novel method using continuous and discrete wavelet transforms provides extraction of characteristic energy scales of the giant resonances and a nearly model-independent determination of level densities. This technique is applied to diverse (e,e′) and (p,p′) data studying the magnetic quadrupole resonances in ⁴⁸Ca, electric dipole and quadrupole resonances in ²⁸Si , ⁴⁰Ca and ¹⁶⁶Er and various model calculations attempting to describe the fine structure.