10.23731/CYRM-2020-0010.17
Arduini, G.
Bruce, R.
De Maria, R.
Giovannozzi, M.
Iadarola, G.
Jowett , J.
Métral, E.
Papaphilippou, Y.
Tomás Garcia, R.
Machine layout and performance
CERN Yellow Reports: Monographs
2020
2020-12-17
2021-01-25
2020-12-17
en
Article
9-127-1154
10.23731/CYRM-2020-0010
17 Pages
This work is licensed under a Creative Commons Attribution 4.0 International License.
The goal of the High-luminosity upgrade of the LHC is to deliver an integrated luminosity of at least 250 fb-1 per year (assuming at least 160 days of operation at high-luminosity) in each of the two high-luminosity general-purpose detectors, ATLAS and CMS, located at the interaction points (IP) 1 and 5, respectively. The ATLAS and CMS detectors will be upgraded to handle an average pile-up, the number of events per bunch crossing, of at least 140 (ultimately 200), corresponding to an instantaneous luminosity of approximately 5 × 1034 cm-2 s-1 (ultimately 7.5 × 1034 cm-2 s-1) for operation with 25 ns beams consisting of 2760 bunches at 7 TeV, and for an inelastic cross-section σin = 81 mb. The detectors are also expected to handle a peak line density of pile-up events of at least 1.3 events per mm per bunch crossing and ultimately larger values with limited reduction of the detection efficiency.
CERN Yellow Reports: Monographs, Vol. 10 (2020): High-Luminosity Large Hadron Collider (HL-LHC): Technical design report