Speaker
Description
The CMS upgrades for the upcoming High-Luminosity LHC (HL-LHC) run include vast improvements to the quality of the L1 Trigger event reconstruction, notably by the inclusion of reconstructed tracks. To fully exploit its extended L1 capability, CMS is pioneering a novel L1 Data Scouting (L1DS) system, designed to acquire and process the quasi-offline-quality trigger primitives produced by the L1 at the accelerator bunch-crossing rate of 40 MHz. The goal of this system is to give full access to potential physics signatures otherwise limited by the L1 latency and accept rate budget, or whose selection strategy diverges from that of the standard CMS physics program. To validate the concept and provide a development platform for the firmware and software required for the final system, a scaled-down demonstrator, implementing the full acquisition and processing chain, was assembled. The feasibility and reach of a number of physics channels are being studied in detail by injecting simulated data into the demonstrator full chain. We present an overview of the baseline L1 scouting design and its possible extensions, as well as a summary of ongoing physics studies and their potential to extend the CMS physics reach at the HL-LHC.
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