标题： 从RHIC到宇宙的重核 显示英文标题

标题： Heavy Nuclei from RHIC to the Cosmos

摘要： 高能重离子碰撞会产生高温且热化的系统，这种系统可能模拟了大爆炸后不久的条件。 本文将概述相对论重离子对撞机（RHIC）的早期成果，并讨论我们关于炽热且强相互作用的核系统的认识。 我们将讨论系统的热力学和化学组分，以及对系统早期演化的敏感可观测量。 我还将讨论RHIC的结果对宇宙射线空气秀的启示。 显示英文摘要

摘要： Ultra-relativistic heavy ion collisions produce a high-temperature, thermalized system that may mimic the conditions present shortly after the big bang. This writeup will given an overview of early results from the Relativistic Heavy Ion Collider (RHIC), and discuss what we have learned about hot, strongly interacting nuclear systems. The thermal and chemical composition of the system will be discussed, along with observables that are sensitive to the early evolution of the system. I will also discuss the implications of the RHIC results for cosmic ray air showers.