EDM4hep and podio - The event data model of the Key4hep project and its implementation

Gaede, Frank; Ganis, G.; Hegner, B.; Helsens, C.; Madlener, T.; Sailer, A.; Stewart, G. A.; Völkl, Valentin; Wang, Joseph

doi:10.1051/epjconf/202125103026

Cited by 10 publications

(9 citation statements)

References 8 publications

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“…To facilitate creating a project with Key4hep, the software stack has to be fully functional and provide a variety of examples to allow users to adapt it to their specific use cases. These proceedings present the progress made since previous conferences [1][2][3][4].…”

Section: Introductionmentioning

confidence: 88%

The Key4hep turnkey software stack for future colliders

Declara¹,

Ganis²,

Hegner³

et al. 2022

Proceedings of the European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2021)

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High Energy Physics experiments for the future depend on reliable, proven, and flexible software components to perform detector optimisation and physics performance studies. Key4hep is a software stack designed to provide a set of software components for future and present High Energy Physics projects. In these proceedings the main components of Key4hep are described, comprising: EDM4hep for the common event data model, simulation interfaces for both Delphes and Geant4, k4MarlinWrapper to integrate with various iLCSoft components, and software tools to build, validate and integrate the different components of Key4hep seamlessly. It provides a software infrastructure for easy access and use of its components, where different future collider projects are adapting to use Key4hep, such as FCC, CEPC, ILC, CLIC and SCT. These adaptations showcase the feasibility of the software stack as a turnkey solution for nascent physics studies and as a base for future High Energy Physics experiments.

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Section: Introductionmentioning

confidence: 88%

The Key4hep turnkey software stack for future colliders

Declara¹,

Ganis²,

Hegner³

et al. 2022

Proceedings of the European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2021)

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“…The standardization of tools is likely important in view of a future lepton collider. For Higgs factories, a common software framework, EDM4HEP is being developed [1265], that is based on a common event data model from the generator over the detector level simulation towards reconstruction and analysis. This event data model is encoded in the event format LCIO [1266].…”

Section: Lepton Collidersmentioning

confidence: 99%

Event Generators for High-Energy Physics Experiments

Campbell¹,

Diefenthaler²,

Hobbs³

et al. 2022

Preprint

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“…For an introduction to the general design choices and capabilities of the podio toolkit we refer to previous publications [2][3][4]. Here, we will instead entirely focus on the most recent developments that we consider to be the most important ones; the Frame concept, Schema evolution of generated EDMs and the possibility to extend EDMs.…”

Section: The Podio Edm Toolkitmentioning

confidence: 99%

“…These include data types to represent data generated during simulation, as well as the ones encountered during reconstruction starting from raw data from the detector, up to the data types representing higher levels of reconstruction. The general structure of EDM4hep and the relation between LCIO and EDM4hep is discussed in slightly more detail in [4].…”

Section: Edm4hepmentioning

confidence: 99%

EDM4hep - a common event data model for HEP experiments

Gaede¹,

Madlener²,

Fernandez³

et al. 2022

Proceedings of 41st International Conference on High Energy Physics — PoS(ICHEP2022)

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A shared, common event data model, EDM4hep, is an integral part of the Key4hep project. EDM4hep aims to be usable by all future collider projects, despite their different collision environments and the different detector technologies that are under discussion. This constitutes a major challenge that EDM4hep addresses by using podio, a C++ toolkit for the creation and handling of event data models, developed in the context of the AIDA R&D program. This approach allows for quick prototyping of new data types and provides a streamlined framework for updates. After presenting an overview of the basic features of EDM4hep and podio, we will discuss the current experience with an initial version of EDM4hep in different physics studies. Additionally, we will present the planned developments that are necessary for a first stable version of EDM4hep, addressing in particular backward compatibility aspects and schema evolution. We will conclude with an outlook on the future developments directions beyond this first stable version.

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EDM4hep and podio - The event data model of the Key4hep project and its implementation

Cited by 10 publications

References 8 publications

The Key4hep turnkey software stack for future colliders

The Key4hep turnkey software stack for future colliders

Event Generators for High-Energy Physics Experiments

EDM4hep - a common event data model for HEP experiments

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