Abstract
The next LHC Runs, nominally Run III and Run IV, pose problems to the offline and computing systems in CMS. Run IV in particular will need completely different solutions, given the current estimates of LHC conditions and Trigger estimates. We report on the R&D process CMS has established, in order to gain insight on the needs and the possible solutions for the 2020+ CMS computing.
Highlights
The CMS[1] experiment has been taking data at the CERN/LHC collider since late 2009, collecting year-over-year records on events collected and energy at the collisions
We report on the R&D process CMS has established, in order to gain insight on the needs and the possible solutions for the 2020+ CMS computing
A wrap-up of 2018 data taking During 2018, the last year of Run II, LHC delivered to CMS integrated luminosity in excess of 67 fb−1, out of which more than 64 fb−1were recorded for offline utilization
Summary
The CMS[1] experiment has been taking data at the CERN/LHC collider since late 2009, collecting year-over-year records on events collected and energy at the collisions. For most of the data taking period, a special trigger designed to collect “bb” events was activated, with rates up to 6 kHz in the last part of the fill (where pile-up, called PU in the following, and event size is at the minimum). This sample is going to be the basis for an intense program on b-quark physics, to be completed largely before the restart of the LHC in 2021.
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