论文标题
计数状态:SQM碎片的组合分析
Counting States: A Combinatorial Analysis of SQM Fragmentation
论文作者
论文摘要
奇怪的夸克物质(SQM)假设指出,在极端的压力和密度条件下,将出现新的物质基础状态,其中一半的\ textit {down}夸克变成了奇怪的夸克。如果是真的,那将意味着至少中子恒星的核心是由SQM制成的。在这一假设中,当这些对象中的两个合并时,SQM将在星际间介质中释放。据估计,SQM的$ 10^{ - 2} m \ odot $将以这种方式发布。此问题将经历一系列过程,这些过程应通过\ textit {r-process}导致释放的SQM的一部分变为沉重的核。在这项工作中,我们有兴趣表征SQM的碎片化,并以保持碎片物质的\ textit {quark configuration}的新颖性。这是通过开发一种方法来估计每个片段的能量作为其\ textit {组成夸克}的总和,这是夸克和片段之间的库仑相互作用来实现的。碎裂输出的确定对于充分表征随后的核合成至关重要。
The Strange Quark matter (SQM) hypothesis states that at extreme pressure and density conditions a new ground state of matter would arise, in which half of the \textit{down} quarks become strange quarks. If true, it would mean that at least the core of neutron stars is made of SQM. In this hypothesis, SQM would be released in the inter-stellar medium when two of these objects merge. It is estimated that $10^{-2} M\odot$ of SQM would be released this way. This matter will undergo a sequence of processes that should result in a fraction of the released SQM becoming heavy nuclei through \textit{r-process}. In this work we are interested in characterizing the fragmentation of SQM, with the novelty of keeping track of the \textit{quark configuration} of the fragmented matter. This is accomplished by developing a methodology to estimate the energy of each fragment as the sum of its \textit{constituent quarks}, the Coulomb interaction among the quarks and fragments' momenta. The determination of the fragmentation output is crucial to fully characterize the subsequent nucleosynthesis.