Network structure of thermonuclear reactions in nuclear landscape

Abstract

Nucleosynthesis is a complex process in astro-nuclear evolution. In this work, we construct a directed multi-layer nuclear reaction network using the substrate-product method from a thermonuclear reaction database, JINA REACLIB. The network contains four layers, namely $n$-, $p$-, $h$- and $r$, corresponding to the reaction types involved in neutrons, protons, ${}^4$He and the remainder, respectively. The degree values (i.e. numbers of reactions) for three layers of n-, p- and h- have a significant correlation with one another, and their topological structures exhibit a similar regularity. However, the $r$-layer has a more complex topological structure than others and has less correlation with the other three layers. A software package named `mfinder' is employed to analyze the motif structure of the nuclear reaction network. We thus identify the most frequent reaction patterns of interconnections occurring among different nuclides. This work provides a novel approach to study the nuclear reaction network prevailing in the astrophysical context.

arXiv comment7 pages, 6 figures

References in corpus (21)

• Emergence of scaling in random networks
• The r-process of stellar nucleosynthesis: Astrophysics and nuclear physics achievements and mysteries
• The s Process: Nuclear Physics, Stellar Models, Observations
• Analyzing and Modeling Real-World Phenomena with Complex Networks: A Survey of Applications
• R-process enrichment from a single event in an ancient dwarf galaxy
• Temporal motifs in time-dependent networks
• Temporal motifs reveal homophily, gender-specific patterns and group talk in mobile communication networks
• Antinuclei in Heavy-Ion Collisions
• Different mechanism of two-proton emission from proton-rich nuclei ${}^{23}$Al and ${}^{22}$Mg
• Positioning the neutron drip line and the r-process paths in the nuclear landscape
• Experimental study of intruder components in light neutron-rich nuclei via single-nucleon transfer reaction
• Beyond the average: Detecting global singular nodes from local features in complex networks
• Decay properties of ${}^{22}\mathrm{Ne}+\alpha$ resonances and their impact on $s$-process nucleosynthesis
• Astrophysical S factor of {${}^{12}$C($\alpha ,\gamma$)${}^{16}$O} Calculated with the Reduced R-matrix Theory
• An efficient method for mapping the 12C+12C molecular resonances at low energies
• Yield ratio of neutrons to protons in ${}^{12}C(d,n{)}^{13}$N and ${}^{12}C(d,p{)}^{13}$C from 0.6 MeV to 3 MeV
• Recalibration of the binding energy of hypernuclei measured in emulsion experiments and its implications
• Neutrinos, supernovae, and the origin of the heavy elements
• New Astrophysical Reaction Rate for the ${}^{12}\text{C}(\alpha ,\gamma {)}^{16}\text{O}$ Reaction
• Triple α Resonances in the Decay of Hot Nuclear Systems *
• Multilayer network analysis of nuclear reactions

Cited by in corpus (5)

• $\alpha$-clustering effect on flows of direct photons in heavy-ion collisions
• Application of machine learning in the determination of impact parameter in the ${}^{132}$Sn+${}^{124}$Sn system
• Dipole excitation of ${}^6$Li and ${}^9$Be studied with an extended quantum molecular dynamics model
• Reaction rate weighted multilayer nuclear reaction network
• Topology of nuclear reaction networks of interest for astrophysics