LUCID: ATLAS光度探测器

Proceedings of Sixth Annual Conference on Large Hadron Collider Physics — PoS(LHCP2018) Pub Date : 2018-09-28 DOI:10.22323/1.321.0032

L. Fabbri

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引用次数: 0

摘要

对大型强子对撞机亮度的精确测量是ATLAS项目的关键组成部分:它的不确定性是所有横截面测量的系统误差，从标准模型过程到新发现，对于某些精确测量，它可能是主要误差。为了进行预测，需要与PDF不确定度(1-2%)兼容的精度。LUCID (LUminosity Cherenkov积分检测器)是一种对相互作用点产生的带电粒子敏感的光度计。它是唯一一个完全专用于此目的的ATLAS探测器，也是LHC RUN 2期间的主要探测器。在RUN 1关闭后，LUCID必须重新设计，以应对RUN 2预期的数据获取条件。将介绍新的探测器、校准系统和电子设备，以及2017年光度测量系统不确定度的初步结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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LUCID: The ATLAS Luminosity Detector

A precise measurement of the LHC luminosity is a key component of the ATLAS program: its uncertainty is a systematic error in all cross-section measurements, from the Standard Model processes to new discoveries, and for some precise measurements it can be the dominant error. To be predictive a precision compatible with PDF uncertainty ( 1-2%) is desired. LUCID (LUminosity Cherenkov Integrating Detector) is a luminometer sensitive to charged particles produced at the interaction point. It is the only ATLAS detector totally dedicated to this purpose and the main one during LHC RUN 2. After the RUN 1 shutdown, LUCID had to be redesigned in order to cope with the data taking conditions foreseen for RUN 2. The new detector, calibration system and electronics will be described, together with a preliminary result of the systematic uncertainty on the 2017 luminosity measurement.

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Proceedings of Sixth Annual Conference on Large Hadron Collider Physics — PoS(LHCP2018)

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