AbstractThe dipole response of the proton-magic nucleus $${}^{124}\hbox {Sn}$$
124
Sn
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 $${}^{124}\hbox {Sn}$$
124
Sn
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 $$\gamma $$
γ
-decay behavior of excited states were studied. The $${}^{124}\hbox {Sn}$$
124
Sn
(p,p’$$\gamma $$
γ
) experiment was performed at $$E_p = {15}\,\,\hbox {MeV}$$
E
p
=
15
MeV
using the combined spectroscopy setup SONIC@HORUS at the Tandem accelerator of the University of Cologne. Proton-$$\gamma $$
γ
coincidences were recorded, enabling a state-to-state analysis due to the excellent energy resolution for both particles and $$\gamma $$
γ
rays. $$ J=1 $$
J
=
1
states in the PDR region were populated in the present inelastic proton scattering experiment. Many $$\gamma $$
γ
-decay branching ratios could be determined.
Electric and magnetic dipole modes in high-resolution inelastic proton scattering at 0°
