Crossing Angle Anti-Leveling at the LHC in 2017

In 2017, LHC incorporated in operation an anti-leveling procedure of adapting the crossing angle of the colliding beams in steps to increase the integrated luminosity. In this paper, we present the Dynamic Aperture simulations that were employed to identify the operational margins, and therefore def...

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Veröffentlicht in:	Journal of physics. Conference series 2018-09, Vol.1067 (2), p.22004, Article 022004
Hauptverfasser:	Karastathis, N, Fuchsberger, K, Hostettler, M, Papaphilippou, Y, Pellegrini, D
Format:	Artikel
Sprache:	eng
Schlagworte:	Leveling Luminosity Physics
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	In 2017, LHC incorporated in operation an anti-leveling procedure of adapting the crossing angle of the colliding beams in steps to increase the integrated luminosity. In this paper, we present the Dynamic Aperture simulations that were employed to identify the operational margins, and therefore define the leveling steps. The results are complemented by observations from nominal operation, as well as projections for the 2018 run. Additional leveling techniques, investigated in dedicated machine studies are also discussed.
ISSN:	1742-6588 1742-6596 1742-6596
DOI:	10.1088/1742-6596/1067/2/022004