GEANT4 parameter tuning using Professor

Elvira, V. D.; Fields, L.; Genser, K.; Hatcher, R.; Ivanchenko, V.; Kelsey, M.; Koi, T.; Perdue, G. N.; Ribon, A.; Uzhinsky, V.; Wright, D. H.; Yarba, J.; Jun, S. Y.

doi:10.1088/1748-0221/15/02/p02025

Cited by 3 publications

(2 citation statements)

References 22 publications

(43 reference statements)

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“…HEP experiments in which the beam energies are such that a modeling of hadronic particle interactions below 10 GeV is required rely predominantly on Geant4 models-such as Bertini-like intranuclear cascade [19], Fritiof (FTF) [20,21] string, Geant4 precompound, evaporation and breakup [4]-to simulate the relevant interactions. In the study [22] aiming to improve Geant4 physics models' agreement with data, and to provide ways to estimate simulation systematic uncertainties by varying model parameters, it has been determined that varying model parameters can lead to substantially better agreement with some datasets. However, more degrees of freedom are required for better overall agreement, which means that some models need more work to de-scribe the existing data.…”

Section: A Some Needs Related To Hadronic Interaction Modelingmentioning

confidence: 99%

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Detector and Beamline Simulation for Next-Generation High Energy Physics Experiments

Banerjee¹,

Brown²,

Brown³

et al. 2022

Preprint

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The success of high energy physics programs relies heavily on accurate detector simulations and beam interaction modeling. The increasingly complex detector geometries and beam dynamics require sophisticated techniques in order to meet the demands of current and future experiments. Common software tools used today are unable to fully utilize modern computational resources, while data-recording rates are often orders of magnitude larger than what can be produced via simulation. In this paper, we describe the state, current and future needs of high energy physics detector and beamline simulations and related challenges, and we propose a number of possible ways to address them.

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Section: A Some Needs Related To Hadronic Interaction Modelingmentioning

confidence: 99%

“…• "Optimizing Geant4 parameters and enabling estimating related systematic uncertainties"is an activity described in Ref. [22].…”

Section: A Specific Randd Effortsmentioning

confidence: 99%

Detector and Beamline Simulation for Next-Generation High Energy Physics Experiments

Banerjee¹,

Brown²,

Brown³

et al. 2022

Preprint

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Optimizing Geant4 Hadronic Models

Genser,

Jun,

Ribon

et al. 2024

EPJ Web of Conf.

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Geant4, the leading detector simulation toolkit used in high energy physics, employs a set of physics models to simulate interactions of particles with matter across a wide range of energies. These models, especially the hadronic ones, rely largely on directly measured cross-sections and inclusive characteristics, and use physically motivated parameters. However, they generally aim to cover a broad range of possible simulation tasks and may not always be optimized for a particular process or a given material. The Geant4 collaboration recently made many parameters of the models accessible via a configuration interface. This opens a possibility to fit simulated distributions to the thin target experimental datasets and extract optimal values of the model parameters and the associated uncertainties. Such efforts are currently undertaken by the Geant4 collaboration with the goal of offering alternative sets of model parameters, also known as "tunes", for certain applications. The effort should subsequently lead to more accurate estimates of the systematic errors in physics measurements given the detector simulation role in performing the physics measurements. Results of the study are presented to illustrate how Geant4 model parameters can be optimized through applying fitting techniques, to improve the agreement between the Geant4 and the experimental data.

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Reproducibility and Replication of Experimental Particle Physics Results

Junk

2020

Harvard Data Science Review

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GEANT4 parameter tuning using Professor

Cited by 3 publications

References 22 publications

Detector and Beamline Simulation for Next-Generation High Energy Physics Experiments

Detector and Beamline Simulation for Next-Generation High Energy Physics Experiments

Optimizing Geant4 Hadronic Models

Reproducibility and Replication of Experimental Particle Physics Results

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