43 citations · 270 across the 22 of their papers we have counts for
22 papers
Statistical properties of Xe and the Xe cross section
H. C. Berg, V. W. Ingeberg, S. Siem +17
Xe is an interesting case for plasma physics to explore nuclear excitation by electron capture, as the process can be studied using statistical properties of Xe. In…
Nuclear Level Density and -ray Strength Function of and the impact on the i-process
V. W. Ingeberg, S. Siem, M. Wiedeking +29
Proton- coincidences from reactions between a beam and a deuterated polyethylene target have been analyzed with the inverse-Oslo met…
New experimental constraint on the W()W cross section
A. C. Larsen, G. M. Tveten, T. Renstrøm +28
In this work, we present new data on the W() cross sections, utilizing a quasi-monochromatic photon beam produced at the NewSUBARU synchrotron radiation facili…
Gamma-ray emission in proton-induced nuclear reactions on natC and Mylar targets over the incident energy range of Ep = 30-200 MeV. Astrophysical implications
Y. Rahma, S. Ouichaoui, J. Kiener +37
We have measured the gamma-ray line production cross sections in proton-induced nuclear reactions on various target nuclei abundant in astrophysical sites over the incident energy…
Evolution of the -ray strength function in neodymium isotopes
M. Guttormsen, K. O. Ay, M. Ozgur +24
The experimental gamma-ray strength functions (gamma-SFs) of 142,144-151Nd have been studied for gamma-ray energies up to the neutron separation energy. The results represent a uni…
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…
Strong enhancement of level densities in the crossover from spherical to deformed neodymium isotopes
M. Guttormsen, Y. Alhassid, W. Ryssens +19
Understanding the evolution of level densities in the crossover from spherical to well-deformed nuclei has been a long-standing problem in nuclear physics. We measure nuclear level…
First candidates for γ vibrational bands built on the [505]11/2- neutron orbital in odd-A Dy isotopes
S. N. T. Majola, M. A. Sithole, L. Mdletshe +67
Rotational structures have been measured using the Jurogam II and GAMMASPHERE arrays at low spin following the 155Gd(α,2n)157Dy and 148Nd(12C, 5n)155Dy reactions at 25 and 65 MeV,…
Spectroscopy of low spin states in 157Dy: Search for evidence of enhanced octupole correlations
S. N. T. Majola, R. A. Bark, L. Bianco +40
Low-spin states of 157Dy have been studied using the JUROGAM II array, following the 155Gd (α, 2n) reaction at a beam energy of 25 MeV. The level scheme of 157Dy has been expanded…
Measurement and analysis of nuclear -ray production cross sections in proton interactions with Mg, Si and Fe nuclei abundant in astrophysical sites over the incident energy range MeV
W. Yahia-Cherif, S. Ouichaoui, J. Kiener +29
Gamma-ray production cross section excitation functions have been measured for , , and MeV proton beams accelerated onto targets of astrophysical interest, $^{nat…
-ray Strength Function for Barium Isotopes
H. Utsunomiya, T. Renstrøm, G. M. Tveten +9
Photoneutron cross sections were measured for Ba and Ba at energies below two-neutron threshold using quasi-monochromatic -ray beams produced in laser Compton-sc…
Nuclear level densities and gamma-ray strength functions of Ta
C. P. Brits, K. L. Malatji, M. Wiedeking +24
Particle- coincidence experiments were performed at the Oslo Cyclotron Laboratory with the Ta(d,X) and Ta(He,X) reactions, to measure the nuclear level den…
Nuclear level densities and -ray strength functions of -- First application of the Oslo Method in inverse kinematics
V. W. Ingeberg, S. Siem, M. Wiedeking +26
The -ray strength function (SF) and nuclear level density (NLD) have been extracted for the first time from inverse kinematic reactions with the Oslo Method. This novel techn…
Experimental -decay strength in Ni compared with microscopic calculations
T. Renstrøm, G. M. Tveten, J. E. Midtbø +20
Nuclear level densities and -ray strength functions have been extracted for , using the Oslo method on data sets from the Ni(He,He$^{\prime}…
Photoneutron cross sections for Ni isotopes: Toward understanding cross sections relevant to the weak s-process nucleosynthesis
H. Utsunomiya, T. Renstrøm, G. M. Tveten +19
Photoneutron cross sections were measured for Ni, Ni, Ni, and Ni at energies between the one-neutron and two-neutron thresholds using quasi-monochromati…
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…
Low-energy enhancement and fluctuations of -ray strength functions in Fe: test of the Brink-Axel hypothesis
A. C. Larsen, M. Guttormsen, N. Blasi +21
Nuclear level densities and -ray strength functions of Fe have been extracted from proton- coincidences. A low-energy enhancement in the -ray strength functions…
Nature of low-lying electric dipole resonance excitations in 74Ge
D. Negi, M. Wiedeking, E. G. Lanza +32
Isospin properties of dipole excitations in 74 Ge are investigated using the (α,α'γ) reaction and compared to (γ,γ) data. The results indicate that the dipole excitations in the en…
Low-energy enhancement in the γ-ray strength functions of Ge
T. Renstrøm, H. -T. Nyhus, H. Utsumoniya +22
The -ray strength functions and level densities of Ge have been extracted up to the neutron separation energy S from particle- coincidence data using the Oslo m…
Gamma ray production cross sections in proton induced reactions on natural Mg, Si and Fe targets over the proton energy range 30 up to 66 MeV
W. Yahia-Chérif, S. Ouichaoui, J. Kiener +29
Gamma-ray excitation functions have been measured for 30, 42, 54 and 66 MeV proton beams accelerated onto C + O (Mylar), Mg, Si, and Fe targets of astrophysical interest at the sep…
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…
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…