用于在CERN SPS上以\NASixtyOne谱仪测量开粲粒子的高分辨率像素硅顶点探测器
A high-resolution pixel silicon Vertex Detector for open charm measurements with the \NASixtyOne spectrometer at the CERN SPS
AI总结：
针对CERN SPS上开粲测量需求，设计了高分辨率像素硅顶点探测器，并在Pb+Pb和Xe+La碰撞中测试运行，本文详述其设计、校准与重建分析。
摘要：
开粲介子产生的研究为探究核-核碰撞中形成的热密物质的性质提供了有效工具。对CERN SPS现有双缪子数据的解释因缺乏对开粲粒子产生机制和性质的认识而受到制约。为此，CERN SPS上的\NASixtyOne实验的重离子计划已扩展至对短寿命粲强子的精确测量。为应对径迹记录以及初级和次级顶点重建中高分辨率的挑战，设计了一种用于测量核-核碰撞中开粲产生稀有过程的新型顶点探测器。2016年安装了小接受度版本的顶点探测器，并在150\AGeVc的Pb+Pb碰撞中进行了测试。该探测器还在2017年和2018年进行的150\AGeVc Xe+La和Pb+Pb碰撞物理数据采集期间运行。本文介绍了探测器的设计与建造、数据校准、事件重建和分析流程。
英文摘要：
The study of open charm meson production provides an efficient tool for the investigation of the properties of hot and dense matter formed in nucleus-nucleus collisions. The interpretation of the existing di-muon data from the CERN SPS suffers from a lack of knowledge on the mechanism and properties of the open charm particle production. Due to this, the heavy-ion programme of the \NASixtyOne experiment at the CERN SPS has been extended by precise measurements of charm hadrons with short lifetimes. A new Vertex Detector for measurements of the rare processes of open charm production in nucleus-nucleus collisions was designed to meet the challenges of track registration and high resolution in primary and secondary vertex reconstruction. A small-acceptance version of the vertex detector was installed in 2016 and tested with Pb+Pb collisions at 150\AGeVc. It was also operating during the physics data taking on Xe+La and Pb+Pb collisions at 150\AGeVc conducted in 2017 and 2018. This paper presents the detector design and construction, data calibration, event reconstruction, and analysis procedure.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
