19–25 Oct 2024
Europe/Zurich timezone

BuSca: a Buffer Scanner at 30 MHz for New Long-Lived Particle Searches at LHCb

22 Oct 2024, 16:51
18m
Room 1.C (Small Hall)

Room 1.C (Small Hall)

Talk Track 2 - Online and real-time computing Parallel (Track 2)

Speakers

Arantza De Oyanguren Campos (Univ. of Valencia and CSIC (ES)) Valerii Kholoimov (Instituto de Física Corpuscular (Univ. of Valencia))

Description

In this presentation, we introduce BuSca, a prototype algorithm designed for real-time particle searches, leveraging the enhanced parallelization capabilities of the new LHCb trigger scheme implemented on GPUs. BuSca is focused on downstream reconstructed tracks, detected exclusively by the UT and SciFi detectors. By projecting physics candidates onto 2D histograms of flight distance and mass hypotheses at a remarkable 30 MHz rate, BuSca identifies hot spots indicative of potential candidates of new particles, thereby providing strategic guidance for the development of new trigger lines. Additionally, BuSca offers an Armenteros-Podolanski representation, providing insights into the mass hypotheses of the decay products associated with the new particle. The performance of BuSca, including the outcomes of its initial prototype on simulated data, will be elucidated in this talk.

Primary authors

Arantza De Oyanguren Campos (Univ. of Valencia and CSIC (ES)) Brij Kishor Jashal (RAL, TIFR and IFIC) Jiahui Zhuo (Univ. of Valencia and CSIC (ES)) Valerii Kholoimov (Instituto de Física Corpuscular (Univ. of Valencia)) Volodymyr Svintozelskyi (Univ. of Valencia and CSIC (ES))

Presentation materials