In this review, we collect, for the first time, old and new research results, and present future perspectives on how hadron production, in high-energy scattering processes, can experimentally probe fundamental questions of quantum gravity. The key observations that ignited the link between the two arenas are the so-called “color-event horizon” of quantum chromodynamics, and the (de)accelerations involved in such scattering processes. Both phenomena point to the Unruh (and related Hawking)-type effects. After the first pioneering investigations, such research studies continued, including studies of the horizon entropy and other “black-hole thermodynamical” behaviors, which incidentally are also part of the frontier of the analog gravity research itself. It has been stressed that the trait d’union between the two phenomenologies is that in both hadron physics and black hole physics, “thermal” behaviors are more easily understood, not as due to real thermalization processes (sometimes just impossible, given the small number of particles involved), but rather to a stochastic/quantum entanglement nature of such temperatures. Finally, other aspects, such as the self-critical organizations of hadronic matter and of black holes, have been recently investigated. The results of those investigations are also summarized and commented upon here. As a general remark, this research line shows that we can probe quantum gravity theoretical constructions with analog systems that are not confined to only the condensed matter arena.

中文翻译：

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用类似物寻找量子引力：高能粒子物理学案例

在这篇综述中，我们首次收集了新旧研究成果，并就高能散射过程中的强子产生如何通过实验探索量子引力的基本问题提出了未来展望。点燃这两个领域之间联系的关键观察是量子色动力学的所谓“颜色事件视界”，以及这种散射过程中涉及的（去）加速度。这两种现象都指向安鲁（和相关的霍金）型效应。在第一次开创性调查之后，此类研究继续进行，包括对视界熵和其他“黑洞热力学”行为的研究，顺便说一下，这也是模拟引力研究本身前沿的一部分。强调了trait d'union这两种现象之间的区别在于，在强子物理学和黑洞物理学中，“热”行为更容易理解，这不是由于真正的热化过程（有时是不可能的，因为涉及的粒子数量很少），而是由于随机/这种温度的量子纠缠性质。最后，最近研究了其他方面，例如强子物质和黑洞的自我批评组织。这些调查的结果也在这里总结和评论。总的来说，这条研究路线表明，我们可以用模拟系统探索量子引力理论结构，而不仅限于凝聚态领域。