2013
DOI: 10.1103/physrevc.88.064308
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Dipole response of76Se above 4 MeV

Abstract: The dipole response of 76 34 Se in the energy range from 4 to 9 MeV has been analyzed using a ( γ, γ ) polarized photon scattering technique, performed at the High Intensity γ-Ray Source facility, to complement previous work performed using unpolarized photons. The results of this work offer both an enhanced sensitivity scan of the dipole response and an unambiguous determination of the parities of the observed J = 1 states. The dipole response is found to be dominated by E1 excitations, and can reasonably be … Show more

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Cited by 40 publications
(10 citation statements)
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References 92 publications
(163 reference statements)
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“…This parallels the procedure performed in Ref. [47]. In particular for the case of 54 Cr, stronger individual excitations as compared to 50 Cr and an accumulation of strength are visible in the vicinity of the neutron-separation energy of 9.7 MeV.…”
supporting
confidence: 77%
“…This parallels the procedure performed in Ref. [47]. In particular for the case of 54 Cr, stronger individual excitations as compared to 50 Cr and an accumulation of strength are visible in the vicinity of the neutron-separation energy of 9.7 MeV.…”
supporting
confidence: 77%
“…Various extensions to the Skyrme mean field have been proposed to explore more general spin-orbit forces [15,98,99], motivated by the Relativistic Mean Field. The simplest extension comes from allowing one extra parameter vary the isospin dependence as [100] [100] have been used for the study of fusion barriers [101], ternary fusion [102], in the study of equilibration within TDHF [103], and giant resonance calculations [104,105]. Of relevance for the case of heavy-ion reactions, Vo-Phuoc et al [101], compared the barrier energy as calculated with TDHF for the SLy4d [30] and UNEDF1 [106] Skyrme interactions.…”
Section: Spin-orbit Interactionsmentioning
confidence: 99%
“…Dipole excitations at energies between 1.8 and 4 MeV were investigated in experiments at the former Stuttgart Dynamitron [20]. The dipole-strength distribution for energies up to S n is of particular interest because enhanced strength on the low-energy tail of the giant dipole resonance (GDR), often denoted as the "pygmy dipole resonance" (PDR) was found to be especially pronounced in 76 Se [21], 78 Se [22], nuclides with Z = 42 [23,24], N = 50 [25][26][27][28], around N = 82 [29][30][31][32][33][34][35][36], in 196 Pt [37], and in the doubly magic 208 Pb [38][39][40].…”
Section: Introductionmentioning
confidence: 99%