Study of the Pygmy Dipole Resonance in 124Sn with AGATA

11th International Spring Seminar on Nuclear Physics: Shell Model and Nuclear Structure – achievements of the past two decades

Pellegri, L.^1,2,2 ; Bracco, A.^1,2 ; Crespi, F.C.L.^1,2

INFN Sezione di Milano, Milano

I-20133, Italy^1

Università Degli Studi di Milano, Milano

I-20133, Italy^2

关键词: High resolution;    LaBr3:Ce;    Large volumes;    Pygmy dipole resonances;    Separation energy;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/580/1/012056/pdf
DOI  :  10.1088/1742-6596/580/1/012056

来源: IOP

【 摘 要 】

The γ decay of the pygmy dipole resonance of124Sn was measured with the AGATA demonstrator coupled to an array of 9 large volume LaBr3:Ce scintillators. This resonance was populated by the inelastic scattering reaction17O+124Sn at 20 MeV/u. With AGATA, the γ decay up to the neutron separation energy was measured with high resolution. The angular distribution was measured both for the γ rays and the scattered17O ions. The present results are presented in comparison with the previous findings for (γ, γ') and (α,α'γ).