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

Autor: Färber, Michelle, Weinert, Michael, Müscher, Miriam, Spieker, Mark, Wilhelmy, Julius, Zilges, Andreas
Předmět:
Zdroj: European Physical Journal A -- Hadrons & Nuclei; Jun2021, Vol. 57 Issue 6, p1-8, 8p
Abstrakt: The dipole response of the proton-magic nucleus 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 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 γ -decay behavior of excited states were studied. The 124 Sn (p,p' γ ) experiment was performed at E p = 15 MeV using the combined spectroscopy setup SONIC@HORUS at the Tandem accelerator of the University of Cologne. Proton- γ coincidences were recorded, enabling a state-to-state analysis due to the excellent energy resolution for both particles and γ rays. J = 1 states in the PDR region were populated in the present inelastic proton scattering experiment. Many γ -decay branching ratios could be determined. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje