activity
20022017
most citedConstraints on the Mg s-process neutron source from analysis of total and cross sections

65 citations · 444 across the 20 of their papers we have counts for

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13 papers · 1 filter

nucl-ex2017★ 31 cited

La(, ) cross sections constrained with statistical decay properties of La nuclei

Bonginkosi Vincent Kheswa, Mathis Wiedeking, Josh Brown +22

The nuclear level densities and -ray strength functions of La were measured using the La(He, ), La(He, He) and $^{1…

nucl-ex2016★ 21 cited

Neutron capture cross section measurement of 238U at the n TOF CERN facility with C6D6 scintillation detectors in the energy region from 1 eV to 700 keV

TOF Collaboration, F. Mingrone, C. Massimi +102

The aim of this work is to provide a precise and accurate measurement of the 238U(n,g) reaction cross section in the energy region from 1 eV to 700 keV. This reaction is of fundame…

nucl-ex2014★ 34 cited

Measurement and analysis of the Am-243 neutron capture cross section at the n_TOF facility at CERN

TOF Collaboration, E. Mendoza, D. Cano-Ott +129

Background:The design of new nuclear reactors and transmutation devices requires to reduce the present neutron cross section uncertainties of minor actinides. Purpose: Reduce the $…

nucl-ex2014★ 17 cited

Level densities and thermodynamical properties of Pt and Au isotopes

F. Giacoppo, F. L. Bello Garrote, L. A. Bernstein +15

The nuclear level densities of Pt and Au below the neutron separation energy have been measured using transfer and scattering reactions. All the level densi…

nucl-ex2014

Observation of double pygmy resonances in Pt and enhanced astrophysical reaction rates

F. Giacoppo, F. L. Bello Garrote, T. K. Eriksen +12

Our measurements of Pt -strength functions show a double-humped enhancement in the MeV region. For the first time, the detailed shape of these resonances…

nucl-ex2014★ 32 cited

Experimental neutron capture data of Ni from the CERN n_TOF facility

TOF collaboration, P. Žugec, M. Barbagallo +99

The Ni cross section has been measured at the neutron time of flight facility n_TOF at CERN, in the energy range from 27 meV up to 400 keV. In total, 51 resonances h…

nucl-ex2013★ 3 cited

Neutron-skin thickness of Pb, and symmetry-energy constraints from the study of the anti-analog giant dipole resonance

A. Krasznahorkay, M. Csatlós, L. Csige +12

The Pb(,) Pb reaction at a beam energy of 30 MeV has been used to excite the anti-analog of the giant dipole resonance (AGDR) and to measure its -de…

nucl-ex2013★ 19 cited

Improved Pt() and Ir() astrophysical reactions rates

P. E. Koehler, K. H. Guber

Pt is produced solely by the slow neutron capture (\textit{s}) nucleosynthesis process and hence an accurate (,) reaction rate for this nuclide would allow its use as…

nucl-ex2012★ 15 cited

Neutron Resonance Data Exclude Random Matrix Theory

P. E. Koehler, F. Bečvář, M. Krtička +2

Almost since the time it was formulated, the overwhelming consensus has been that random matrix theory (RMT) is in excellent agreement with neutron resonance data. However, over th…

nucl-ex2012★ 7 cited

Abrupt Change in Radiation-Width Distribution for 147Sm Neutron Resonances

P. E. Koehler, R. Reifarth, J. L. Ullmann +5

We obtained total radiation widths of s-wave resonances through R-matrix analysis of 147Sm(n,gamma) cross-sections. Distributions of these widths differ markedly for resonances bel…

nucl-ex2010★ 63 cited

Anomalous fluctuations of s-wave reduced neutron widths of Pt resonances

P. E. Koehler, F. Bečvář, M. Krtička +2

We obtained an unprecedentedly large number of s-wave neutron widths through R-matrix analysis of neutron cross-section measurements on enriched Pt samples. Careful analysis of the…

nucl-ex2008★ 5 cited

Non-Statistical Effects in Neutron Capture

P. E. Koehler, T. A. Bredeweg, K. H. Guber +8

There have been many reports of non-statistical effects in neutron-capture measurements. However, reports of deviations of reduced-neutron-width distributions from the expected Por…

nucl-ex2007★ 24 cited

Spin measurements for 147Sm+n resonances: Further evidence for non-statistical effects

P. E. Koehler, J. L. Ullmann, T. A. Bredeweg +5

We have determined the spins J of resonances in the 147Sm(n,gamma) reaction by measuring multiplicities of gamma-ray cascades following neutron capture. Using this technique, we we…