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HK: Fachverband Physik der Hadronen und Kerne

HK 31: Structure and Dynamics of Nuclei IV

HK 31.5: Vortrag

Mittwoch, 29. März 2017, 17:45–18:00, F 2

Electromagnetic transition rates in ²¹O — •Sebastian Heil¹ and Marina Petri² — ¹IKP, TU Darmstadt, Germany — ²University of York, UK

Experimental studies of electromagnetic transition rates in neutron-rich nuclei are very important for testing NN+3N calculations. The case of ²¹O is particularly interesting because calculations show that the transition strengths from the first 1/2⁺ and second 3/2⁺ excited states to the ground state 5/2⁺ will discriminate between the NN+3N and USDB interactions.

An experiment at NSCL was performed, producing ²¹O. The usage of the TRIPLEX plunger allows the determination of the lifetime of the state of interest. The S800 spectrometer and GRETINA were used for the fragment identification and gamma-ray detection. This presentation will report on the experiment as well as the current status of the analysis.

This work was supported by the DFG within the framework of the SFB 1245 and by HIC for FAIR within the framework of the LOEWE program launched by the State of Hesse.