ACAT 2025

BuSca: A new software project for LLP searches at 30 MHz at LHCb

Not scheduled

30m

Hamburg, Germany

Poster Track 2: Data Analysis - Algorithms and Tools Poster session with coffee break

Speaker

Valerii Kholoimov (Instituto de Física Corpuscular (Univ. of Valencia))

Description

The new fully software-based trigger of the LHCb experiment operates at a 30 MHz data rate, opening a search window into previously unexplored regions of physics phase space. The BuSca (Buffer Scanner) project at LHCb acquires, reconstructs and analyzes data in real time, extending sensitivity to new lifetimes and mass ranges though the recently deployed Downstream tracking algorithm. BuSca identifies hotspots indicative of potential new particle candidates in a model-independent manner, providing strategic guidance for developing new trigger requirements. To control the background, regions with minimal detector material interactions are selected, and pairs of same-sign tracks are used to suppress combinatorial background. This talk presents the results from the analysis of the first data.

References

https://indico.cern.ch/event/1338689/contributions/6015415/

Significance

This presentation shows a novel approach based on software to increase the capabilities and physics reach of HEP experiments, in particular of LHCb for the detection of Long Lived Particles.