20–22 Feb 2024
Physics Dpt
Europe/Rome timezone

A lightweight algorithm to model Radiation Damage Effects in Monte Carlo Events for High-Luminosity LHC experiments

20 Feb 2024, 14:55
20m
Aula Magna (Physics Dpt)

Aula Magna

Physics Dpt

Via Pietro Giuria 1

Speaker

Keerthi Nakkalil (University of Paris Cité)

Description

Radiation damage significantly impacts the performance of silicon tracking detectors in Large Hadron Collider (LHC) experiments such as ATLAS and CMS, with signal reduction being the most critical effect. While adjusting sensor bias voltage and detection thresholds can help mitigate these effects, generating simulated data that accurately mirrors the performance evolution with the accumulation of luminosity, hence fluence, is crucial.

The ATLAS and CMS collaborations have developed and implemented algorithms to correct simulated Monte Carlo (MC) events for radiation damage effects, achieving impressive agreement between collision data and simulated events.
In preparation for the high-luminosity phase (HL-LHC), the demand for a faster ATLAS MC production algorithm becomes imperative due to escalating collision rates, events, tracks, and hits, imposing strict constraints on available computing resources. This talk outlines the philosophy behind the new algorithm, its implementation strategy, and the essential components involved. The presentation also includes results from closure tests and first evaluation of algorithm performance.

Primary authors

Keerthi Nakkalil (University of Paris Cité) Dr Marco Bomben (APC/University of Paris Cité)

Presentation materials