25–29 May 2026
La Biodola - Isola d'Elba (Italy)
Europe/Rome timezone
Reminder: Posters are requested to be uploaded by Thursday, 21 May.

Data reduction in CMS

25 May 2026, 17:55
20m
Maria Luisa Room (Hotel Hermitage)

Maria Luisa Room

Hotel Hermitage

Oral presentation Data Acquisition and Trigger Architectures Data Acquisition and Trigger Architectures

Speaker

Silvio Donato (Universita & INFN Pisa (IT))

Description

Bandwidth and storage limitations are a major bottleneck for many physics measurements and searches in HEP. The CMS experiment has addressed this constraint with several techniques that increase the number of events saved to disk while preserving physics performance; these approaches are still evolving and will be improved for Phase-2.

This talk will give an overview of the status of the compression techniques used in CMS with a focus on data scouting (reduced-content, trigger-level formats) and RAW Prime (strip cluster saved instead of strip raw data), and their impact on physics analyses. We will summarize how these methods enable higher effective trigger rates, lower thresholds, and larger datasets — particularly for low-mass and soft-object signatures — and outline ongoing developments for Run 3 and the HL-LHC.

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Author

Silvio Donato (Universita & INFN Pisa (IT))

Presentation materials

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