论文标题

部分可观测时空混沌系统的无模型预测

First Experimental Evidence of a Beam-Beam Long-Range Compensation Using Wires in the Large Hadron Collider

论文作者

Poyet, A., Bertarelli, A., Carra, F., Fartoukh, S. D., Fuster-Martínez, N., Karastathis, N., Papaphilippou, Y., Pojer, M., Redaelli, S., Rossi, A., Skoufaris, K., Camillocci, M. Solfaroni, Sterbini, G.

论文摘要

在高强度和高能量攻iler中,例如CERN大型强子对撞机及其未来的高光度升级,不同相互作用点周围的两个梁之间的相互作用施加了机器性能的限制。实际上,它们的效果降低了光束寿命,因此对撞机的发光度达到了。这些相互作用称为束束长距离相互作用,在2000年代初期首次提出了使用直流线来缓解其效果。目前正在研究该解决方案,以作为增强HL-LHC性能的选项。在2017年和2018年,LHC已安装了四个电线补偿器的示威者。随后进行了为期两年的实验活动,以验证减轻LHC中BBLR相互作用的可能性。在此活动期间,概念验证验证已完成并激发了一组其他实验,成功地证明了与操作配置兼容的光束条件下BBLR相互作用效果的缓解。本文详细介绍了实验活动的准备,获得的结果并为未来提出了一些观点。

In high intensity and high energy colliders such as the CERN Large Hadron Collider and its future High Luminosity upgrade, interactions between the two beams around the different Interaction Points impose machine performance limitations. In fact, their effect reduces the beam lifetime and therefore the collider's luminosity reach. Those interactions are called Beam-Beam Long-Range interactions and a possible mitigation of their effect using DC wires was proposed for the first time in the early 2000's. This solution is currently being studied as an option for enhancing the HL-LHC performance. In 2017 and 2018, four demonstrators of wire compensators have been installed in the LHC. A two-year long experimental campaign followed in order to validate the possibility to mitigate the BBLR interactions in the LHC. During this campaign, a proof-of-concept was completed and motivated an additional set of experiments, successfully demonstrating the mitigation of BBLR interactions effects in beam conditions compatible with the operational configuration. This paper reports in detail the preparation of the experimental campaign, the obtained results and draws some perspectives for the future.

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