Branching ratio and information entropy for the p+$^{12}$C reaction in the extended-quantum-molecular-dynamics model

Fuente: arXiv
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Main Authors: Shen, Lei, Huang, Bo-Song, Ma, Yu-Gang
Format: Preprint
Published: 2025
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author Shen, Lei
Huang, Bo-Song
Ma, Yu-Gang
author_facet Shen, Lei
Huang, Bo-Song
Ma, Yu-Gang
contents The reactions of p+$^{12}$C with triangular 3$α$ structure and spherical structure with incident energies ranging from 5 to 200 MeV/nucleon are simulated by the in the extended-quantum-molecular-dynamics (EQMD) model together with the GEMINI decay process. This paper presents the incident energy dependence of the branching ratios of fragment production and multiplicity, as well as the associated event information entropy. The results indicate that the triangular 3$α$ $^{12}$C has an extra branching ratio for the quasi-elastic reaction compared to the spherical $^{12}$C. This peculiarity of the branching ratios of the triangular 3$α$ $^{12}$C appears as a small dent in the curves of the event information entropy (both the fragment information entropy and the multiplicity information entropy). Therefore, we propose that the event information entropy could be a probe for detecting the $α$-cluster structure.
format Preprint
id arxiv_https___arxiv_org_abs_2501_18118
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Branching ratio and information entropy for the p+$^{12}$C reaction in the extended-quantum-molecular-dynamics model
Shen, Lei
Huang, Bo-Song
Ma, Yu-Gang
Nuclear Theory
Nuclear Experiment
The reactions of p+$^{12}$C with triangular 3$α$ structure and spherical structure with incident energies ranging from 5 to 200 MeV/nucleon are simulated by the in the extended-quantum-molecular-dynamics (EQMD) model together with the GEMINI decay process. This paper presents the incident energy dependence of the branching ratios of fragment production and multiplicity, as well as the associated event information entropy. The results indicate that the triangular 3$α$ $^{12}$C has an extra branching ratio for the quasi-elastic reaction compared to the spherical $^{12}$C. This peculiarity of the branching ratios of the triangular 3$α$ $^{12}$C appears as a small dent in the curves of the event information entropy (both the fragment information entropy and the multiplicity information entropy). Therefore, we propose that the event information entropy could be a probe for detecting the $α$-cluster structure.
title Branching ratio and information entropy for the p+$^{12}$C reaction in the extended-quantum-molecular-dynamics model
topic Nuclear Theory
Nuclear Experiment
url https://arxiv.org/abs/2501.18118