The experimental facility for the Search for Hidden Particles at the CERN SPS
The experimental facility for the Search for Hidden Particles at the CERN SPS
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DOI：
10.1088/1748-0221/14/03/p03025
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发表时间：
2018-10
期刊：
影响因子：
--
通讯作者：
SHiP Collaboration
中科院分区：
文献类型：
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作者：
SHiP Collaboration
搜索隐藏粒子（SHiP）合作项目已经表明，CERN SPS加速器的400 $\ mathm{\小GeV/c}$质子束为探索隐藏领域提供了一个独特的机会。提出的实验是一个强度前沿实验，能够通过可见的衰变和电子或原子核的反冲散射特征来寻找隐藏的粒子。由SHiP合作开发的高强度实验设施基于许多关键特征和发展，这些特征和发展提供了在极其干净的背景条件下，为质量高达O(10) $\ mathm{\小GeV/c^2}$的各种轻长寿命超弱相互作用粒子模型探测大部分参数空间的可能性。本文介绍了实验设施的建议以及最重要的可行性研究。本文重点介绍了在束流提取和束流输送、质子束流转储和束流诱导背景抑制等方面具有挑战性的新思想。
The Search for Hidden Particles (SHiP) Collaboration has shown that the CERN SPS accelerator with its 400 $\mathrm{\small GeV/c}$ proton beam offers a unique opportunity to explore the Hidden Sector. The proposed experiment is an intensity frontier experiment which is capable of searching for hidden particles through both visible decays and through scattering signatures from recoil of electrons or nuclei. The high-intensity experimental facility developed by the SHiP collaboration is based on a number of key features and developments which provide the possibility of probing a large part of the parameter space for a wide range of models with light long-lived superweakly interacting particles with masses up to O(10) $\mathrm{\small GeV/c^2}$ in an environment of extremely clean background conditions. This paper describes the proposal for the experimental facility together with the most important feasibility studies. The paper focuses on the challenging new ideas behind the beam extraction and beam delivery, the proton beam dump, and the suppression of beam-induced background.