Design and Construction of the CMS Outer Tracker for the Phase-2 Upgrade
- Fermilab
The High Luminosity LHC (HL-LHC) is expected to deliver an integrated luminosity of 3000-4000~fb$$^{-1}$$ after 10 years of operation with peak instantaneous luminosity reaching about 5-7.5$$\times10^{34}$$cm$$^{-2}$$s$$^{-1}$$. During Long Shutdown 3, several components of the CMS detector will undergo major changes, called Phase-2 upgrades, to be able to operate in the challenging environment of the HL-LHC. The current CMS tracker will be replaced. The Phase-2 Outer Tracker (OT) will have high radiation tolerance, higher granularity, and the capability to handle higher data rates. Moreover, the OT will provide tracking information to the Level-1 trigger, for the first time at hadron colliders, allowing trigger rates to be kept at a sustainable level without sacrificing physics potential. For this, the OT will be made of modules with two closely spaced silicon sensors read out by front-end ASICs, which can correlate hits in the two sensors creating short track segments (stubs), used for tracking in the L1 track finder. The modules come in two flavors: strip-strip (2S) and pixel-strip (PS), containing different sensor configurations and multiple ASICs. This contribution will present the design of the Phase-2 OT, the first results with pre-production devices, and the quality assurance procedures used to ensure the functionality of the modules: from fulfilling the precision specification of the module assembly procedure to ensuring the proper communication among the module's ASICs.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- US Department of Energy
- DOE Contract Number:
- 89243024CSC000002
- OSTI ID:
- 2551826
- Report Number(s):
- FERMILAB-SLIDES-25-0022-CMS; oai:inspirehep.net:2906459
- Journal Information:
- No journal information, Journal Name: No journal information
- Country of Publication:
- United States
- Language:
- English
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Design and construction of the CMS Outer Tracker for the Phase-2 Upgrade
Design and construction of the CMS Outer Tracker for the phase-2 upgrade