Three-alpha structures in C-12

Abstract

We search for three-alpha resonances in C-12 by using the complex scaling method in a microscopic cluster model. All experimentally known low-lying natural-parity states are localized. For the first time we unambiguously show that the 0+_2 state in C-12, which plays an important role in stellar nucleosynthesis, is a genuine three-alpha resonance.

11 pages, 2 figures

References in corpus (1)

• S-matrix and R-matrix determination of the low-energy He-5 and Li-5 resonance parameters

Cited by in corpus (15)

• Properties of ${}^{12}$C in the {\it ab initio} nuclear shell-model
• Structure of ground and excited states of ${}^{12}$C
• Two-Particle Resonant States in a Many-Body Mean Field
• Resonance states in 12C and alpha-particle condensation
• Stellar production rates of carbon and its abundance in the universe
• Momentum distributions of $\alpha$-particles from decaying low-lying ${}^{12}$C-resonances
• Three-alpha-cluster structure of the 0^+ states in ^{12}C and the effective alpha-alpha interactions
• Monopole excitation of the Hoyle state and linear-chain state in 12C
• Hindrance of the excitation of the Hoyle state and the ghost of the $2_2^{+}$ state in ${}^{12}$C
• Variational Calculations of the ${}^{12}C$ Nucleus Structure in a 3$\alpha$ Model Using a Deep Potential with Forbidden States
• A Microscopic Cluster Description of 12C
• Folding model analysis of the inelastic $\alpha {+}^{12}$C scattering at medium energies, and the isoscalar transition strengths of the cluster states of ${}^{12}$C
• Resonances and scattering in microscopic cluster models with the complex-scaled generator coordinate method
• S-matrix studies of resonances in A=3,4,5,6, and 12 nucleon systems
• Effective Mass of $\alpha$-Cluster in ${}^{12}$C Nucleus