dorsal/arxiv
View SchemaGo4 v2 Analysis Framework
| Authors | J. Adamczewski, M. Al-Turany, D. Bertini, H. G. Essel, S. Linev |
|---|---|
| Categories | |
| ArXiv ID | physics/0306022 |
| URL | https://arxiv.org/abs/physics/0306022 |
Abstract
Go4 developed at GSI is an analysis framework with a general purpose non blocking GUI. Go4 is based on ROOT. The GUI is implemented in Qt using GSI's QtROOT interface. Analysis and GUI run in separate tasks communicating through asynchronous object channels. A Go4 analysis may use any ROOT features. It can be organized in steps, which can be controlled from the GUI according to the user specifications. Each step is composed of event objects, the event processing, and event IO. Go4 composite event classes allow the construction of arbitrary complex events hierarchically composed of objects. The IO of the composite event objects to and from ROOT trees/branches is provided without explicit programming. The Go4 tree viewer can browse arbitrary hierarchy levels of composite events. The GUI provides hooks to attach user written GUIs. These GUIs have access to all objects of the analysis, i.e. events for asynchronous event display. Using the Qt designer the development of such GUIs is very efficient. The Go4 fit package (API and GUI) is a powerful and extendable tool to model and fit experimental data. The Go4 framework is especially useful for on-line monitoring. The HADES experiment at GSI integrated the existing ROOT based analysis into Go4 and is using it on-line with dedicated GUIs.
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"date_created": "2026-03-02T18:00:43.202000Z",
"date_modified": "2026-03-02T18:00:43.202000Z",
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"record": {
"abstract": "Go4 developed at GSI is an analysis framework with a general purpose non\nblocking GUI. Go4 is based on ROOT. The GUI is implemented in Qt using GSI\u0027s\nQtROOT interface. Analysis and GUI run in separate tasks communicating through\nasynchronous object channels. A Go4 analysis may use any ROOT features. It can\nbe organized in steps, which can be controlled from the GUI according to the\nuser specifications. Each step is composed of event objects, the event\nprocessing, and event IO. Go4 composite event classes allow the construction of\narbitrary complex events hierarchically composed of objects. The IO of the\ncomposite event objects to and from ROOT trees/branches is provided without\nexplicit programming. The Go4 tree viewer can browse arbitrary hierarchy levels\nof composite events. The GUI provides hooks to attach user written GUIs. These\nGUIs have access to all objects of the analysis, i.e. events for asynchronous\nevent display. Using the Qt designer the development of such GUIs is very\nefficient. The Go4 fit package (API and GUI) is a powerful and extendable tool\nto model and fit experimental data. The Go4 framework is especially useful for\non-line monitoring. The HADES experiment at GSI integrated the existing ROOT\nbased analysis into Go4 and is using it on-line with dedicated GUIs.",
"arxiv_id": "physics/0306022",
"authors": [
"J. Adamczewski",
"M. Al-Turany",
"D. Bertini",
"H. G. Essel",
"S. Linev"
],
"categories": [
"physics.data-an"
],
"title": "Go4 v2 Analysis Framework",
"url": "https://arxiv.org/abs/physics/0306022"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "b23a1491-83e5-4152-98b8-a20f6d8bf616",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}