Optimizing b-Jet Performance in the CMS High-Level Trigger with Run-3 Data

arXiv (Cornell University)

Abstract

The real-time identification and selection of b-jets play a crucial role in the CMS experiment, particularly in searches involving heavy-flavor jets. The High-Level Trigger (HLT) is designed to efficiently select events of interest while maintaining a manageable output rate of a few kilohertz. This report presents the commissioning and performance evaluation of b-jet triggers in the CMS HLT system using proton-proton collision data collected during Run-3 (2022-2024). Key aspects include algorithm optimization, efficiency studies, and comparisons with offline reconstruction. The results provide valuable insights into the current b-jet selection strategy and highlight potential refinements for future data-taking campaigns.

Authors 1

1. Uttiya Sarkar corresponding Aachen 𝑎 III. Physikalisches Institut A

   RWTH Aachen University

   Affiliation as printed

   𝑎 III. Physikalisches Institut A , RWTH Aachen , Sommerfeldstr. 16 , 52074 Aachen , Germany