Caterina Doglioni
Affiliated
AtlFast3: The Next Generation of Fast Simulation in ATLAS
Author
Summary, in English
The ATLAS experiment at the Large Hadron Collider has a broad physics programme ranging from precision measurements to direct searches for new particles and new interactions, requiring ever larger and ever more accurate datasets of simulated Monte Carlo events. Detector simulation with Geant4 is accurate but requires significant CPU resources. Over the past decade, ATLAS has developed and utilized tools that replace the most CPU-intensive component of the simulation—the calorimeter shower simulation—with faster simulation methods. Here, AtlFast3, the next generation of high-accuracy fast simulation in ATLAS, is introduced. AtlFast3 combines parameterized approaches with machine-learning techniques and is deployed to meet current and future computing challenges, and simulation needs of the ATLAS experiment. With highly accurate performance and significantly improved modelling of substructure within jets, AtlFast3 can simulate large numbers of events for a wide range of physics processes. © 2022, Springer Nature Switzerland AG.
Department/s
- Particle and nuclear physics
- eSSENCE: The e-Science Collaboration
Publishing year
2022
Language
English
Publication/Series
Computing and Software for Big Science
Volume
6
Issue
1
Document type
Journal article
Publisher
Springer
Topic
- Subatomic Physics
- Other Computer and Information Science
Status
Published
ISBN/ISSN/Other
- ISSN: 2510-2044