Fusion and competing processes in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow /><mml:mrow><mml:mn>32</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi mathvariant="normal">S</mml:mi><mml:mrow><mml:msup><mml:mrow><mml:mo>+</mml:mo></mml:mrow><mml:mrow><mml:mn>12</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi mathvariant="normal">C</mml:mi></mml:math>reaction at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><

Pirrone, S.; Politi, G.; Lanzalone, G.; Aiello, S.; Arena, N.; Cavallaro, S.; Geraci, E.; Porto, F.; Sambataro, S.

doi:10.1103/physrevc.64.024610

Cited by 16 publications

(9 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2 (fig. 5) [29] 16O+27Al [34] 32S+12C [39] 20Ne+26Mg [40] 20Ne+27Al [41] 35Cl+12C [42] 16O+40Ca [46] 28Si+28Si [48] 32S+24Mg [53] 19F+40Ca [55] 32S+27Al [54] 35Cl+24Mg [57] 23Na+40Ca [55] 28Si+40Ca [55,60] (4)) in the fusion region III is shown as full darkred curve in both panels. The darkgreen dash-dotted curve in inset is due to the same kind of fit to the fusion region II.…”

Section: Data Setmentioning

confidence: 99%

“…Despite a broad coverage in the α and N sys /Z sys variables many of data are for the mass symmetric systems and, in particular, for the systems with the equal number of neutrons N sys and protons Z sys . About 100 additional data points from those measurements which have reported existence of a non-negligible fusion-fission component will be presented p-1 [18,19] 20Ne+16O [20] 24Mg+12C [21] 12C+27Al [22] 16O+24Mg [23] 20Ne+20Ne [20] 28Si+12C [24,25] 14N+27Al [26] 16O+26Mg [23] 18O+24Mg [23] 16O+27Al [27][28][29] 32S+12C [30][31][32][33][34] 20Ne+26Mg [35] 20Ne+27Al [28,36] 20Ne+27Al [28,36] 35Cl+12C [37][38][39] 16O+32S [28] 16O+40Ca [40,41] 28Si+28Si [42][43][44][45][46] 28Si+28Si [42][43][44][45][46] 32S+24Mg [47,48] 19F+40Ca [49,50] 32S+27Al [28,49] 35C...…”

mentioning

confidence: 99%

See 1 more Smart Citation

Towards a unified description of evaporation-residue fusion cross-sections above the barrier

Eudes¹,

Basrak²,

Sébille³

et al. 2013

EPL

View full text Add to dashboard Cite

PACS 25.70.Jj -Fusion and fusion-fission reactions PACS 25.70. -z -Low and intermediate energy heavy-ion reactionsAbstract -A meticulous study of nearly 300 fusion-evaporation cross section data reveals that, when properly scaled, fusion excitation function complies with a universal homographic law which is, within experimental errors, reaction system independent. From a such complete and summed complete and incomplete fusion excitation functions extracted are the limiting energy for the complete fusion and the main characteristics (onset, maximum and vanishing) of the incomplete fusion. The DYWAN microscopic transport model correctly predicts the incomplete fusion cross section for incident energies 15A MeV and suggests that the nuclear transparency is at the origin of fusion disappearance.

show abstract

Section: Data Setmentioning

confidence: 99%

mentioning

confidence: 99%

Towards a unified description of evaporation-residue fusion cross-sections above the barrier

Eudes¹,

Basrak²,

Sébille³

et al. 2013

EPL

View full text Add to dashboard Cite

show abstract

“…Data of the same experiments discussed in the case of incomplete fusion results belonging to group 1 in Fig. 7, namely 3 points of the 28 Si + 12 C [31] and a single data point of the 32 S + 12 C reaction [41], are again outside the general data trend. Thus, they are labeled by lighter colors of the symbols.…”

Section: Complete Fusion Datamentioning

confidence: 78%

“…, and all points of measurements 14 N + 27 Al,52 Cr,58 Ni[33] (6 points), as well as the single-data-point measurements32 S + 12 C[41],14 N + 154 Sm[88],…”

mentioning

confidence: 99%

Comprehensive analysis of fusion data well above the barrier

et al. 2014

View full text Add to dashboard Cite

International audienceWe report on the comprehensive systematics of nearly 400 fusion-evaporation and/or fusion-fission cross-section data for a very large variety of systems over an energy range ∼3A to 155A MeV. Scaled by the reaction cross section and expressed as a function of the center-of-mass energy per nucleon, the fusion cross section displays a universal behavior. Within experimental errors, this behavior does not depend on system mass, mass asymmetry, or system isospin. The deduced homographic functional dependence for complete and summed complete and incomplete fusion excitation functions is derived from basic strong absorption model formulas for reaction cross sections and allows us to draw the main properties of these functions. The limiting energy for the complete fusion and the main characteristics (onset, maximum, and extinction) of the incomplete fusion excitation functions are determined. The complete fusion reaction process disappears around 6.5 MeV/nucleon and the incomplete one disappears at about 13 MeV/nucleon in the center-of-mass frame. The regularity in fusion data is particularly obvious for the evaporation-residue subset of the data ensemble. Adding the fusion-fission data component does not alter the general data trend but somewhat obscures it owing to the larger uncertainty and/or possible normalization problems

show abstract

“…[31,16,28,30,29] are reproduced in a satisfactory way complete fusion data from several collision systems in the I-II regions, while in Ref. [15] the description of data is limited to region III, where complete fusion is in competition with different reaction mechanisms [32]. Such approaches are useful to make numerical evaluations on fusion cross sections but have some limitations: they often describe just a limited part of the energy regimes where fusion can occur, or they are lacking physical boundaries.…”

Section: Introductionmentioning

confidence: 99%

Modeling Heavy-Ion Fusion Cross Section Data via a Novel Artificial Intelligence Approach

Dell’Aquila¹,

Gnoffo²,

Lombardo³

et al. 2022

Preprint

View full text Add to dashboard Cite

We perform a comprehensive analysis of complete fusion cross section data with the aim to derive, in a completely data-driven way, a model suitable to predict the integrated cross section of the fusion between light to medium mass nuclei at above barrier energies. To this end, we adopted a novel artificial intelligence approach, based on a hybridization of genetic programming and artificial neural networks, capable to derive an analytical model for the description of experimental data. The approach enables, for the first time, to perform a global search for computationally simple models over several variables and a considerable body of nuclear data. The derived phenomenological formula can serve to reproduce the trend of fusion cross section for a large variety of light to intermediate mass collision systems in an energy domain ranging approximately from the Coulomb barrier to the onset of multi-fragmentation phenomena.

show abstract

Fusion and competing processes in the32S+12Creaction at<

Cited by 16 publications

References 22 publications

Towards a unified description of evaporation-residue fusion cross-sections above the barrier

Towards a unified description of evaporation-residue fusion cross-sections above the barrier

Comprehensive analysis of fusion data well above the barrier

Modeling Heavy-Ion Fusion Cross Section Data via a Novel Artificial Intelligence Approach

Contact Info

Product

Resources

About