LHC衍射：非技术性介绍
Diffraction at the LHC: a non-technical Introduction
摘要：
在质子或原子核的衍射相互作用中，可能会发生剧烈的碰撞，使向前运动的粒子完全完好无损-概率由质子或原子核的结构决定。在非常高的能量下，这些碰撞也发生在两个入射粒子保持完整的情况下。这被称为中央独家生产。如果一种新粒子，如希格斯玻色子，是专门产生的，这个过程将给出它的质量的精确测量，并测试希格斯玻色子的预期性质。由于其不寻常的功能，这个过程也是一个有前途的发现工具。在本文中，我专注于类似的电磁过程，因为许多方面都适用于两者-特别是相干性的作用。此外，核束衍射中的主题是基于电磁相互作用的。我还讨论了两个建议的测量在ATLAS与铅束和质子束（衍射希格斯生产）。
英文摘要：
In diffractive interactions of protons or nuclei a violent collision can occur that leaves the forward going particle completely intact -with probability determined by the structure of the proton or nucleus. At very high energies these collisions also occur with both incident particles remaining intact. This is called central exclusive production. If a new particle, such as the Higgs boson, were produced exclusively this process would give a precise measurement of its mass and test for expected properties of the Higgs. Because of its unusual features this process is also a promising discovery tool. In this paper I focus on analogous electromagnetic processes because many aspects apply to both- particularly the role of coherence. Also, topics in diffraction with nuclear beams are based on electromagnetic interactions. I also discuss two proposed measurements in ATLAS with Pb beams and with proton beams (diffractive Higgs production).
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