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Low Energy measurement of the reaction cross section and its impact on weak r-process nucleosynthesis
G. G. Kiss, T. N. Szegedi, P. Mohr +4
Lighter heavy elements beyond iron and up to around silver can form in neutrino-driven ejecta in core-collapse supernovae and neutron star mergers. Slightly neutron-rich conditions…
Cross section of -induced reactions on Au at sub-Coulomb energies
T. Szücs, P. Mohr, Gy. Gyürky +6
Statistical model calculations have to be used for the determination of reaction rates in large-scale reaction networks for heavy-element nucleosynthesis. A basic ingredient of suc…
Revised Cross Section of the C(,n)O reaction between 5 and 8 MeV
Peter Mohr
As suggested in a Comment by Peters, Phys.\ Rev.\ C {\bf 96}, 029801 (2017), a correction is applied to the C(,n)O data of Harissopulos {\it et al.}, Phys.\ Rev.\…
alpha-induced reactions on 115In: cross section measurements and statistical model analysis
G. G. Kiss, T. Szucs, P. Mohr +4
[Background] Alpha-nucleus optical potentials are basic ingredients of statistical model calculations used in nucleosynthesis simulations. While the nucleon+nucleus optical potenti…
The 95zr(n, gamma)96zr cross section from the surrogate ratio method and its effect on the s-process nucleosynthesis
S. Q. Yan, Z. H. Li, Y. B. Wang +17
The 95Zr(n,gamma)96Zr reaction cross section is crucial in the modelling of s-process nucleosynthesis in asymptotic giant branch stars because it controls the operation of the bran…
-scattering and -induced reaction cross sections of Zn at low energies
A. Ornelas, P. Mohr, Gy. Gyürky +12
Background: alpha-nucleus potentials play an essential role for the calculation of alpha-induced reaction cross sections at low energies in the statistical model... Purpose: The pr…
Broad levels in O and their relevance for the astrophysical s-process
Thomas Faestermann, Peter Mohr, Ralf Hertenberger +1
Levels in O affect the astrophysical s-process in two opposite ways. The neutron production is enhanced by resonances in the C(,)O reaction at excitation…
Addendum to "Determination of -ray widths in N using nuclear resonance fluorescence''
Tamás Szücs, Peter Mohr
The determination of absolute widths of two observed levels above the proton threshold in N has been improved by a combined analysis of our recent N(,)N…
Cross sections of -induced reactions for targets with masses at low energies
Peter Mohr
A simple reduction scheme using so-called reduced energies and reduced cross sections allows the comparison of heavy-ion induced reaction cross sectio…
The 106Cd(alpha,alpha)106Cd elastic scattering in a wide energy range for gamma-process studies
A. Ornelas, G. G. Kiss, P. Mohr +8
Alpha elastic scattering angular distributions of the 106Cd(alpha,alpha)106Cd reaction were measured at three energies around the Coulomb barrier to provide a sensitive test for th…
Cd()Cd elastic scattering and systematic investigation of elastic scattering cross sections along the = 48 isotopic and = 62 isotonic chains
G. G. Kiss, P. Mohr, Zs. Fülöp +9
The elastic scattering cross sections for the reactions Cd()Cd at energies above and below the Coulomb barrier are presented to provide a sensitive tes…
High precision In()In elastic scattering at energies around the Coulomb barrier for the astrophysical process
G. G. Kiss, P. Mohr, Zs. Fülöp +9
The process in supernova explosions is thought to explain the origin of proton-rich isotopes between Se and Hg, the so-called nuclei. The majority of the reaction rates for…
Elastic alpha scattering experiments and the alpha-nucleus optical potential at low energies
P. Mohr, G. G. Kiss, Zs. Fülöp +3
High precision angular distribution data of (,) elastic scattering are presented for the nuclei Y, Mo, Cd, Sn, and Sm at ene…
Relation between total cross sections from elastic scattering and alpha-induced reactions: the example of 64Zn
Gy. Gyürky, P. Mohr, Zs. Fülöp +4
The total reaction cross section is related to the elastic scattering angular distribution by a basic quantum-mechanical relation. We present new experimental data for alpha-induce…
Experimental study of alpha-induced reactions on 64Zn for the astrophysical gamma-process
Gy. Gyürky, J. Farkas, Z. Halász +5
For the synthesis of the heavy, proton rich isotopes in the astrophysical gamma-process the precise knowledge of alpha-induced cross sections is of high importance. We have initiat…
High precision Y(,)Y scattering at low energies
G. G. Kiss, P. Mohr, Zs. Fülöp +8
Elastic scattering cross sections of the Y(,)Y reaction have been measured at energies E = 15.51 and 18.63 MeV. The high precision data for the semi-ma…
High-energy break-up of 6Li as a tool to study the Big-Bang nucleosynthesis reaction 2H(alpha,gamma)6Li
F. Hammache, M. Heil, S. Typel +24
The recently claimed observations of non-negligible amounts of 6Li in old halo stars have renewed interest in the Big-Bang Nucleosynthesis (BBN) of 6Li. One important ingredient in…
Total reaction cross sections from elastic alpha-nucleus scattering angular distributions around the Coulomb barrier
P. Mohr, D. Galaviz, Zs. Fülöp +3
The total reaction cross section is a valuable measure for the prediction of -induced reaction cross sections within the statistical model and for the comparison…
Properties of the 5- state at 839 keV in 176Lu and the s-process branching at A = 176
P. Mohr, S. Bisterzo, R. Gallino +3
The s-process branching at mass number A = 176 depends on the coupling between the high-K ground state and a low-lying low-K isomer in 176Lu. This coupling is based on electromagne…
Photon-induced Nucleosynthesis: Current Problems and Experimental Approaches
P. Mohr, Zs. Fulop, H. Utsunomiya
Photon-induced reactions play a key role in the nucleosynthesis of rare neutron-deficient p-nuclei. The paper focuses on (gamma,alpha), (gamma,p), and (gamma,n) reactions which def…
Photo-disintegration cross section measurements on W, Re and Os: Implications for the Re-Os cosmochronology
T. Shizuma, H. Utsunomiya, P. Mohr +11
Cross sections of the W, Re, Os() reactions were measured using quasi-monochromatic photon beams from laser Compton scattering (LCS) with average energ…
Photon-induced Reactions in Stars and in the Laboratory: A Critical Comparison
Peter Mohr
Photon-induced reactions during the astrophysical p- (or gamma-) process occur at typical temperatures of 1.8 < T9 < 3.3. Experimental data of (gamma,n), (gamma,p), or (gamma,alpha…
The N(,)F reaction and nucleosynthesis of F
S. Wilmes, V. Wilmes, G. Staudt +2
Several resonances in the N(,)F reaction have been investigated in the energy range between 0.6 MeV and 2.7 MeV. Resonance strengths and branching ratios have b…
Alpha-decay Rates of Yb and Gd in Solar Neutrino Detectors
M. Fujiwara, T. Kawabata, P. Mohr
The -decay rates for the nuclides Yb and Gd have been estimated from transmission probabilities in a systematic -nucleus p…