G. Steinhilber

The electron-gamma coincidence setup DAGOBERT

Bastian Hesbacher, G. Steinhilber, J. Isaak, N. Pietralla et autres

The QCLAM electron spectrometer at the S-DALINAC electron accelerator at Technische Universität Darmstadt has been extended by the DAGOBERT γ -detector array consisting of fast timing and high efficiency LaBr 3 :Ce detectors to perform electron-gamma coincidence measurements. The functionality of the …

de, jp, it, es (code pays fourni par la source)

Stabilization of transverse beam parameters at the S-DALINAC

D. A. Schneider, Michaela Arnold, J. Birkhan, U. Bonnes et autres

Electron-induced fission reactions will be deployed and studied at the S-DALINAC. For these experiments, it is desirable to limit the transverse displacements of the electron beam due to drifts and distortions to below 200 Mikrom. Prior to the present work, this requirement …

Electric quadrupole excitation strengths of Sn 112 , 116 , 120 from nuclear resonance fluorescence

M. Beuschlein, V. Werner, U. Friman-Gayer, J. Kleemann et autres

Electric quadrupole ground-state excitation strengths $B(E2)\ensuremath{\uparrow}$ of the first ${2}^{+}$ states of midshell Sn isotopes were measured with the nuclear resonance fluorescence method to investigate the systematic disagreement between available experimental data from different techniques. Also, model calculations show conflicting trends of …

de, tr, ro (code pays fourni par la source)

The structure of low-lying 1− states in 90,94Zr from (α,α′γ) and (p,p′γ) reactions

F. C. L. Crespi, A. Bracco, E.G. Lanza, A. Tamii et autres

The low-lying dipole strength in the 90,94Zr nuclei was investigated via (p,p′γ) at 80 MeV and (α,α′γ) at 130 MeV. The experiments, made at RCNP, used the magnetic spectrometer Grand Raiden for the scattered particles and the array CAGRA with HPGe detectors …

it, jp, ro, de, gb, us, pl, Afrique du Sud, nl, kr, cn (code pays fourni par la source)

Electric and magnetic dipole strength in Sn 112 , 114 , 116 , 118 , 120 , 124

S. Bassauer, P. von Neumann–Cosel, P.‐G. Reinhard, A. Tamii et autres

Background: There is renewed interest in electric dipole strength distributions for a variety of reasons including the extraction of the dipole polarizability related to properties of the symmetry energy and a measure for the neutron skin thickness, understanding the structure of low-energy …

de, jp, us, cn, in (code pays fourni par la source)

Evolution of the dipole polarizability in the stable tin isotope chain

S. Bassauer, P. von Neumann–Cosel, P.‐G. Reinhard, A. Tamii et autres

The dipole polarizability of stable even-mass tin isotopes 112,114,116,118,120,124Sn was extracted from inelastic proton scattering experiments at 295 MeV under very forward angles performed at RCNP. Predictions from energy density functionals cannot account for the present data and the polarizability of 208Pb …

de, jp, us, it, cn, hr, in (code pays fourni par la source)

Precision measurement of the E2 transition strength to the 21+ state of C12

Antonio D’Alessio, T. Mongelli, Michaela Arnold, S. Bassauer et autres

The form factor of the electromagnetic excitation of $^{12}\mathrm{C}$ to its ${2}_{1}^{+}$ state was measured at extremely low momentum transfers in an electron-scattering experiment at the Superconducting Darmstadt Electron Linear Accelerator (S-DALINAC). A combined analysis with the world form-factor data results in …

de (code pays fourni par la source)

A superfluid liquid helium target for low-momentum electron scattering experiments at the S-DALINAC

M. Hilcker, J. Birkhan, Antonio D’Alessio, Lars Jürgensen et autres

de (code pays fourni par la source)

Gamma decay of pygmy states in 90,94Zr from inelastic scattering of light ions

F. C. L. Crespi, A. Bracco, A. Tamii, N. Blasi et autres

We performed experiments to study the low-energy part of the E1 response (Pygmy Dipole Resonance) in 90,94 Zr nuclei, by measuring the ( p,p 'γ) and (α,α'γ) inelastic scattering reactions at energies E beam,p = 80 MeV and E beam,α = 130 …

it, jp, ro, de, gb, us, pl, Afrique du Sud, cn, fr (code pays fourni par la source)

First Measurement of Collectivity of Coexisting Shapes Based on Type II Shell Evolution: The Case of Zr96

Christoph Kremer, S. Aslanidou, S. Bassauer, M. Hilcker et autres

BACKGROUND: Type II shell evolution has recently been identified as a microscopic cause for nuclear shape coexistence. PURPOSE: Establish a low-lying rotational band in ^{96}Zr. METHODS: High-resolution inelastic electron scattering and a relative analysis of transition strengths are used. RESULTS: The B(E2;0_{1}^{+}→2_{2}^{+}) …

de, us, jp, be (code pays fourni par la source)

27pSH-2 ジルコニウム同位体のピグミー双極子共鳴及び双極分極率

岩本 ちひろ, 民井 淳, Peter von Neumann-Cosel, 宇都宮 弘章 et autres