文章基本信息

标题：Luminosity Measurements in ATLAS and CMS during pp data taking at LHC
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作者：S.Valentinetti on behalf of the ATLAS ; CMS Collaborations
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2018
卷号：321
DOI：10.22323/1.321.0234
语种：English
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：A precise measurement of luminosity is a key component of both the ATLAS and CMS physics programmes at LHC: its uncertainty is one of the dominant systematics for both Standard Model cross section measurements and enters new physics searches. The different strategies used by the two collaborations to assess the luminosity and the methods to absolutely calibrate it are here described, together with the dominant systematic uncertainties. The preliminary luminosity uncertainty obtained for 2017 data is 2.4% for ATLAS and 2.3% for CMS.