activity
19962026
most citedComplete electric dipole response and the neutron skin in 208Pb

520 citations · 2k across the 43 of their papers we have counts for

collaborators

45 papers

nucl-ex2026

Low-energy collective structure of Zr and Mo from () and () scattering II. Signatures of mixed-symmetry states and origin of collectivity

C. Walz, L. M. Donaldson, P. von Neumann-Cosel +2

This is the second of two papers discussing a new experimental signature of mixed-symmetry states (MSS) in the vibrational nuclei Zr and Mo based on proton and neu…

nucl-ex2026

Low-energy collective structure of Zr and Mo from () and () scattering I. Experimental results

C. Walz, O. Burda, L. M. Donaldson +10

This is the first of two papers discussing a new signature of quadrupole mixed-symmetry states in the vibrational nuclei Zr and Mo based on proton and neutron tran…

nucl-ex2025★ 1 cited

Exploring the statistical properties of the neutron-deficient In isotope with the Oslo method

M. Markova, A. C. Larsen, P. von Neumann-Cosel +14

The nuclear level density (NLD) and the -ray strength function (GSF) of the neutron-deficient In isotope were extracted for the first time with data from the Cd$…

nucl-ex2025★ 1 cited

Angela and the electric dipole response -- giant and pygmy, hot and cold, isoscalar and isovector

Peter von Neumann-Cosel

The impact of Angela Bracco's work on the electric dipole response of nuclei is discussed using three examples of current nuclear structure problems: disentangling different contri…

physics.ins-det2025★ 2 cited

The Electron-Gamma Coincidence Setup DAGOBERT

B. Hesbacher, G. Steinhilber, J. Isaak +9

The QCLAM electron spectrometer at the S-DALINAC electron accelerator at Technische Universität Darmstadt has been extended by the DAGOBERT -detector array consisting of fast ti…

nucl-ex2025★ 5 cited

Electric dipole polarizability constraints on neutron skin and symmetry energy

P. von Neumann-Cosel, A. Tamii

We review the experimental knowledge on the dipole polarizability (DP) of nuclei and its relation to the neutron skin thickness and properties of the neutron-rich matter equation o…

nucl-ex2024★ 10 cited

Electric dipole polarizability of Ni

I. Brandherm, F. Bonaiti, P. von Neumann-Cosel +10

The electric dipole strength distribution in Ni between 6 and 20 MeV has been determined from proton inelastic scattering experiments at very forward angles at RCNP, Osaka.…

nucl-ex2024★ 6 cited

Electric and magnetic dipole strength in Ni from forward-angle inelastic proton scattering

I. Brandherm, P. von Neumann-Cosel, R. Mancino +6

The aim of the present work is a state-by-state analysis of possible E1 and M1 transitions in Ni with a high-resolution (p,p') experiment at 295 MeV and very forward angles…

nucl-ex2022

Isoscalar giant monopole strength in Ni, Zr, Sn and Pb

A. Bahini, R. Neveling, P. von Neumann-Cosel +22

Inelastic -particle scattering at energies of a few hundred MeV and very-forward scattering angles including has been established as a tool for the study of the isosca…

nucl-ex2022★ 18 cited

Evolution of the isoscalar giant monopole resonance in the Ca isotope chain

S. D. Olorunfunmi, R. Neveling, J. Carter +25

Two recent studies of the evolution of the isoscalar giant monopole resonance (ISGMR) within the calcium isotope chain report conflicting results. One study suggests that the monop…

nucl-th2021★ 16 cited

Isoscalar giant monopole resonance in Mg and Si: Effect of coupling between the isoscalar monopole and quadrupole strength

A. Bahini, V. O. Nesterenko, I. T. Usman +25

Background: In highly deformed nuclei, there is a noticeable coupling of the Isoscalar Giant Monopole Resonance (ISGMR) and the component of the Isoscalar Giant Quadrupole…

nucl-ex2021★ 15 cited

Statistical properties of the well deformed Sm nuclei and the scissors resonance

K. L. Malatji, K. S. Beckmann, M. Wiedeking +18

The Nuclear Level Densities (NLDs) and the -ray Strength Functions (SFs) of Sm have been extracted from (d,p) coincidences using the Oslo method. The experimen…

physics.ins-det2020★ 1 cited

New data acquisition system of the Lintott magnetic spectrometer at the S-DALINAC

M. Singer, U. Bonnes, A. D'Alessio +3

A new data acquisition system for the high resolution magnetic spectrometer Lintott at the superconducting Darmstadt electron linear accelerator S-DALINAC was developed. It allows…

nucl-ex2020

Comprehensive test of the Brink-Axel hypothesis in the energy region of the pygmy dipole resonance

M. Markova, P. von Neumann-Cosel, A. C. Larsen +22

The validity of the Brink-Axel hypothesis, which is especially important for numerous astrophysical calculations, is addressed for 116,120,124Sn below the neutron separation energy…

nucl-ex2020★ 49 cited

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

S. Bassauer, P. von Neumann-Cosel, P. -G. Reinhard +33

Inelastic proton scattering experiments were performed at the Research Center for Nuclear Physics, Osaka, with a 295 MeV beam covering laboratory angles 0°-6° and excitation energi…

nucl-ex2019★ 61 cited

Electric and magnetic dipole modes in high-resolution inelastic proton scattering at

Peter von Neumann-Cosel, Atsushi Tamii

Inelastic proton scattering under extreme forward angles including and at energies of a few hundred MeV has been established as a new spectroscopic tool for the study of…

nucl-ex2018

Gamma strength functions and the Brink-Axel hypothesis

Peter von Neumann-Cosel

Experimental tests of the Brink-Axel hypothesis relating gamma strength functions (GSF) deduced from absorption and emission experiments are discussed. High-resolution inelastic pr…

nucl-ex2018★ 1 cited

Fine structure of giant resonances: What can be learned

Peter von Neumann-Cosel

Fine structure of giant resonances (GR) has been established in recent years as a global phenomenon across the nuclear chart and for different types of resonances. A quantitative d…

nucl-ex2017★ 18 cited

Wavelet signatures of -splitting of the Isoscalar Giant Quadrupole Resonance in deformed nuclei from high-resolution (p,p) scattering off Nd

C. O. Kureba, Z. Buthelezi, J. Carter +22

The phenomenon of fine structure of the Isoscalar Giant Quadrupole Resonance (ISGQR) has been studied with high energy-resolution proton inelastic scattering at iThemba LABS in the…

nucl-ex2017★ 18 cited

Search for weak M1 transitions in Ca with inelastic proton scattering

M. Mathy, J. Birkhan, H. Matsubara +5

The spinflip M1 resonance in the doubly magic nucleus Ca, dominated by a single transition, serves as a reference case for the quenching of spin-isospin modes in nuclei. The…

nucl-ex2016

Deformation dependence of the isovector giant dipole resonance: The neodymium isotopic chain revisited

L. M. Donaldson, C. A. Bertulani, J. Carter +31

Proton inelastic scattering experiments at energy E_p = 200 MeV and a spectrometer scattering angle of 0 degree were performed on 144,146,148,150Nd and 152Sm exciting the IsoVector…

nucl-ex2016★ 52 cited

Test of the Brink-Axel hypothesis for the pygmy dipole resonance

D. Martin, P. von Neumann-Cosel, A. Tamii +22

The gamma strength function and level density of 1- states in 96Mo have been extracted from a high-resolution study of the (p,p') reaction at 295 MeV and extreme forward angles. By…

nucl-ex2016★ 26 cited

Gamma strength function and level density of Pb from forward-angle proton scattering at 295 MeV

S. Bassauer, P. von Neumann-Cosel, A. Tamii

Gamma strength functions (GSFs) and level densities (LDs) are essential ingredients of statistical nuclear reaction theory with many applications in astrophysics, reactor design, a…

nucl-ex2016★ 1 cited

Study of the pd(dp) -> 3He pi pi reactions close to threshold

F. Bellemann, A. Berg, J. Bisplinghoff +19

New experimental data on the pd -> 3He pi+ pi- reaction obtained with the COSY-MOMO detector below the three-pion threshold are presented. The reaction was also studied in inverse…