Low-energy excitations and γ-decay branchings in 124Sn via (p,p'γ) at Ep=15 MeV

被引：1
作者：
Faerber, Michelle [1 ,3 ]
Weinert, Michael [1 ]
Muescher, Miriam [1 ]
Spieker, Mark [2 ]
Wilhelmy, Julius [1 ]
Zilges, Andreas [1 ]
机构：
[1] Univ Cologne, Inst Kernphys, D-50937 Cologne, Germany
[2] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA
[3] Forschungszentrum Julich, Inst Energy & Climate Res, IEK Troposphere 8, D-52428 Julich, Germany
来源：
EUROPEAN PHYSICAL JOURNAL A | 2021年 / 57卷 / 06期
关键词：
DIPOLE EXCITATIONS; RESONANCE; STATES; MODES; RAY;
D O I：
10.1140/epja/s10050-021-00422-x
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The dipole response of the proton-magic nucleus Sn-124 was previously investigated with electromagnetic and hadronic probes. Different responses were observed revealing the so-called isospin splitting of the Pygmy Dipole Resonance (PDR). Here we present the results of a new study of Sn-124 using inelastic proton scattering at low energies to test an additional probe possibly exciting states of the PDR. The response to the new probe as well as the. -decay behavior of excited states were studied. The Sn-124(p,p'gamma) experiment was performed at Ep = 15 MeV using the combined spectroscopy setup SONIC@HORUS at the Tandem accelerator of the University of Cologne. Proton-. coincidences were recorded, enabling a state-to-state analysis due to the excellent energy resolution for both particles and. rays. J = 1 states in the PDR region were populated in the present inelastic proton scattering experiment. Many gamma -decay branching ratios could be determined.
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页数：8
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