Bonn 2020 – scientific programme

The DPG Spring Meeting in Bonn had to be cancelled! Read more ...

Parts | Days | Selection | Search | Updates | Downloads | Help

HK: Fachverband Physik der Hadronen und Kerne

HK 45: Structure and Dynamics of Nuclei VIII

HK 45.5: Talk

Thursday, April 2, 2020, 15:15–15:30, J-HS E

Lifetime measurement of excited states in ¹²⁰Te — •Franziskus von Spee, Alfred Dewald, Claus Müller-Gatermann, Christoph Fransen, Alina Goldkuhle, Marcel Beckers, and Casper Lakenbrink — Institut für Kernphysik, Köln, Deutschland

The nuclear structure of tellurium isotopes at Z=52 and the evolution of collectivity are of special interest due to the close proximity of the closed shell at Z=50 in the even-even neighbor Sn. A recoil distance Doppler-shift (RDDS) experiment was performed to investigate absolute transition probabilities in ¹²⁰Te. Excited states in ¹²⁰Te were populated using the ¹¹⁰Pd(¹³C,3n)¹²⁰Te reaction at the FN-Tandem accelerator facility located at the IKP of Cologne. The γ−γ coincidence data were analysed with the differential decay-curve method (DDCM) eliminating problems related to feeding and absolute distances. Lifetimes of excited states in the yrast band up to the 8⁺ state were measured and the corresponding B(E2) values were calculated. In this contribution we will present the results and compare these with known data from Coulomb excitation experiments.