| CMS Detector Performance Summaries | |
| Report number | CMS-DP-2026-003 ; CERN-CMS-DP-2026-003 |
| Title | Measurement of the integrated luminosity with the CMS proton-proton dataset at $\sqrt{s} = 13.6$ TeV recorded in 2024 |
| Corporate author(s) | CMS Collaboration |
| Publication | 2026 |
| Collaboration | CMS Collaboration |
| Imprint | 09 Jan 2026 |
| Number of pages | 31 |
| Subject category | Detectors and Experimental Techniques |
| Accelerator/Facility, Experiment | CERN LHC ; CMS |
| Keywords | Physics Performance and Dataset |
| Abstract | A preliminary analysis of the offline luminosity in the 2024 proton-proton collision data at CMS has been performed using the HFET, PLT, PCC, BCM1F (VME), DT, and RAMSES luminometers. The luminometers, with the exception of DT and RAMSES, were calibrated using the vdM method, with data collected in LHC Fill 9639. The uncertainties for the total integrated luminosity arise due to sources in the calibration method and also due to possible nonlinearity and detector instabilities over the year. In the calibration part, the main uncertainty arises due to possible XY-factorization bias, while for the integration part the dominant source is linearity. The final value for the integrated luminosity delivered for this dataset is 124.0 1/fb with a preliminary uncertainty of 1.6\%. |
Record created 2026-01-12, last modified 2026-01-12
