Luigi Redigolo, D. Dell’Aquila, I. Lombardo, A. Musumarra, M. Pellegriti, G. Verde, M. Vigilante
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引用次数: 0
Abstract
We investigate medium-energy angular distributions data of proton elastic scattering on $^{12}$C, with the aim to probe the existence of cluster distributions in the ground state of $^{12}$C. In our approach, we exploit Coupled-Channel calculations to describe the scattering from a spheroidal-like structure, and we include a further contribution, based on a diffraction scattering formula, to explicitly take into account a possible triangular $\alpha$-cluster structure of the target. From the present analysis, we find a quite small cluster component in $^{12}$C ground state (with an upper limit on the occurrence probability of $1\%$, $99.75\%$ confidence level) and an inter-cluster distance of $\simeq 3.9$ fm. These values are compared with several theoretical predictions reported in the literature.
期刊介绍：
Journal of Physics G: Nuclear and Particle Physics (JPhysG) publishes articles on theoretical and experimental topics in all areas of nuclear and particle physics, including nuclear and particle astrophysics. The journal welcomes submissions from any interface area between these fields.
All aspects of fundamental nuclear physics research, including:
nuclear forces and few-body systems;
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rare decays and fundamental symmetries;
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hot and dense matter, QCD phase diagram.
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All aspects of nuclear and particle astrophysics including:
nuclear physics of stars and stellar explosions;
nucleosynthesis;
nuclear equation of state;
astrophysical neutrino physics;
cosmic rays;
dark matter.
JPhysG publishes a variety of article types for the community. As well as high-quality research papers, this includes our prestigious topical review series, focus issues, and the rapid publication of letters.
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