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TY - CONF AU - Karastathis, N. AU - Antoniou, F. AU - Efthymiopoulos, I. AU - Hostettler, M. AU - Iadarola, G. AU - Papadopoulou, S. AU - Papaphilippou, Y. AU - Pellegrini, D. AU - Salvachua, B. ED - Koscielniak, Shane ED - Satogata, Todd ED - Schaa, Volker RW ED - Thomson, Jana TI - Monitoring and Modeling of the LHC Luminosity Evolution in 2017 J2 - Proc. of IPAC2018, Vancouver, BC, Canada, 29 April-04 May 2018 CY - Vancouver, BC, Canada T2 - International Particle Accelerator Conference T3 - 9 LA - english AB - In 2017, the Large Hadron Collider (LHC) restarted operation at 6.5 TeV, after an extended end-of-the-year stop, scheduled to deliver 45/fb to the two general-purpose experiments. Continuous monitoring of the key beam parameters and machine configurations that impact the delivered luminosity was introduced, providing fast feedback to operations for further optimisation. The numerical model based on simulations and use of selected machine parameters to estimate the machine luminosity was further developed. The luminosity evolution and comparisons to the model predictions is presented in this paper. The impact of the dynamic variation of the crossing angle, which was incorporated into nominal LHC operation, is also discussed. PB - JACoW Publishing CP - Geneva, Switzerland SP - 224 EP - 227 KW - luminosity KW - emittance KW - experiment KW - operation KW - monitoring DA - 2018/06 PY - 2018 SN - 978-3-95450-184-7 DO - DOI: 10.18429/JACoW-IPAC2018-MOPMF052 UR - http://jacow.org/ipac2018/papers/mopmf052.pdf ER -