TL;DR
This paper investigates how multi-nucleus collisions influence nuclear pasta formation in cosmic matter, revealing that such interactions extend the phase's low-density existence limit through density functional and Monte Carlo calculations.
Contribution
It introduces a systematic analysis of multi-nucleus collisions' role in nuclear pasta formation, lowering the previously known density threshold.
Findings
Multi-nucleus collisions enhance nuclear pasta formation.
The low-density limit of nuclear pasta is lower than previously thought.
Monte Carlo calculations estimate the mean free path of nuclei.
Abstract
Enhancement of nuclear pasta formation due to multi-nucleus simultaneous collision is presented based on time-dependent density functional calculations with periodic boundary condition. This calculation corresponds to the situation with density lower than the known low-density existence limit of the nuclear pasta phase. In order to evaluate the contribution from three-nucleus simultaneous collisions inside the cosmic matter, the possibility of multi-nucleus simultaneous collisions is examined by a systematic Monte-Carlo calculation, and the mean free path of a nucleus is obtained. Consequently the low-density existence limit of the nuclear pasta phase is formed to be lower than believed up to now.
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