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RIS citation export for WEPTS046: Monitoring and Modelling of the LHC Emittance and Luminosity Evolution in 2018

AU  - Papadopoulou, S.
AU  - Antoniou, F.
AU  - Efthymiopoulos, I.
AU  - Hostettler, M.
AU  - Iadarola, G.
AU  - Karastathis, N.
AU  - Kostoglou, S.
AU  - Papaphilippou, Y.
AU  - Trad, G.
ED  - Boland, Mark
ED  - Tanaka, Hitoshi
ED  - Button, David
ED  - Dowd, Rohan
ED  - Schaa, Volker RW
ED  - Tan, Eugene
TI  - Monitoring and Modelling of the LHC Emittance and Luminosity Evolution in 2018
J2  - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019
CY  - Melbourne, Australia
T2  - International Particle Accelerator Conference
T3  - 10
LA  - english
AB  - Operating at 6.5 TeV, the LHC surpassed the expectations and delivered an average of 66 fb−1 integrated luminosity to the two high luminosity experiments ATLAS and CMS by the end of 2018. In order to provide a continuous feedback to the machine coordination for further optimizing the performance, an automated tool for monitoring the main beam parameters and machine configurations, has been devised and extensively used. New features like the coupling between the two planes and effects of noise, were added to the numerical model used since 2016 to calculate the machine luminosity. Estimates, based both on simulations and on observed beam parameters, were reported fill-by-fill as well as in overall trends during the year. Highlights of the observations including the observed additional emittance blow up (on top of IBS, SR and elastic scattering) as well as additional losses (on top of the expected proton burn off) are presented for the 2018 data. Finally, cumulated integrated luminosity projections from the model for the entire 2018 data based on different degradation mechanisms are compared also with respect to the achieved luminosity.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 3212
EP  - 3215
KW  - emittance
KW  - luminosity
KW  - operation
KW  - experiment
KW  - proton
DA  - 2019/06
PY  - 2019
SN  - 978-3-95450-208-0
DO  - DOI: 10.18429/JACoW-IPAC2019-WEPTS046
UR  - http://jacow.org/ipac2019/papers/wepts046.pdf
ER  -