ML-based Fast Simulation of FARICH Responses

Fuente: arXiv
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Main Authors: Shipilov, Foma, Barnyakov, Alexander, Ivanov, Artem, Ratnikov, Fedor
Format: Preprint
Published: 2026
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author Shipilov, Foma
Barnyakov, Alexander
Ivanov, Artem
Ratnikov, Fedor
author_facet Shipilov, Foma
Barnyakov, Alexander
Ivanov, Artem
Ratnikov, Fedor
contents A fast simulation of the detector response is a vital task in high-energy physics (HEP). Traditional Monte-Carlo methods form the backbone of modern particle physics simulation software but are computationally expensive. We present a machine-learning-based approach to fast simulation of the Focusing Aerogel Ring Imaging Cherenkov (FARICH) detector response. Given a particle track and momentum, the goal is to generate realistic samples of photon hits on the detector matrix. We propose a conditional Generative Adversarial Network (cGAN) with a lightweight convolutional architecture that reproduces the projected detector response conditioned on particle parameters. We compare the cGAN against a linear statistical baseline using metrics applied to probability maps and to the reconstructed velocity distributions. The cGAN produces realistic samples and provides a significant speed-up over Monte-Carlo simulation.
format Preprint
id arxiv_https___arxiv_org_abs_2605_17635
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle ML-based Fast Simulation of FARICH Responses
Shipilov, Foma
Barnyakov, Alexander
Ivanov, Artem
Ratnikov, Fedor
High Energy Physics - Experiment
Machine Learning
I.2.0
A fast simulation of the detector response is a vital task in high-energy physics (HEP). Traditional Monte-Carlo methods form the backbone of modern particle physics simulation software but are computationally expensive. We present a machine-learning-based approach to fast simulation of the Focusing Aerogel Ring Imaging Cherenkov (FARICH) detector response. Given a particle track and momentum, the goal is to generate realistic samples of photon hits on the detector matrix. We propose a conditional Generative Adversarial Network (cGAN) with a lightweight convolutional architecture that reproduces the projected detector response conditioned on particle parameters. We compare the cGAN against a linear statistical baseline using metrics applied to probability maps and to the reconstructed velocity distributions. The cGAN produces realistic samples and provides a significant speed-up over Monte-Carlo simulation.
title ML-based Fast Simulation of FARICH Responses
topic High Energy Physics - Experiment
Machine Learning
I.2.0
url https://arxiv.org/abs/2605.17635