论文标题
光（抗）核的形成
Formation of light (anti)nuclei
论文作者
论文摘要
光核的生产机制，例如杜特隆，氦3，tri及其反颗粒，最近引起了肌颗粒和重离子群落的越来越多的关注。光静脉的预期低天体物理背景使其成为外来天体物理过程的理想探针，例如暗物质歼灭。同时，它们可用于测量重离子碰撞中的两个核子相关性和密度波动，这可能会在QCD相图上亮起。由于光反核在宇宙射线研究中的重要性，我们开发了一种新的光（抗）核的合并模型，其中既包括地层区域的大小，又包括过程依赖过程，也包括半古典图片中的动量相关性。我们已将该模型作为事件发电机Pythia 8和QGSJET II的增强燃烧器，发现该模型与$ e^+E^+E^ - $，$ PP $，$ P $，$ P $ BE和$ P $ al Collisions in Collegies in Collegies in Antideuteron和Antihelium-3生产非常吻合。在本文中，我们审查了此模型，并根据新见解更新现有拟合到实验数据。
The production mechanism of light nuclei, such as deuteron, helium-3, tritium and their antiparticles, has recently attracted an increased attention from the astroparticle and heavy ion communities. The expected low astrophysical background of light antinulei makes them ideal probes for exotic astrophysical processes, such as dark matter annihilations. At the same time, they can be used to measure two-nucleon correlations and density fluctuations in heavy ion collisions, which may shed light on the QCD phase diagram. Motivated by the importance of light antinuclei in cosmic ray studies, we developed a new coalescence model for light (anti)nuclei that includes both the size of the formation region, which is process dependent, and momentum correlations in a semi-classical picture. We have employed the model as an afterburner to the event generators Pythia 8 and QGSJET II, and find that the model agrees well with experimental data on antideuteron and antihelium-3 production in $e^+e^-$, $pp$, $p$Be and $p$Al collisions at various energies. In this paper, we review this model and update existing fits to experimental data based on new insights.
