Speaker
Description
Beyond 2020 we will enter the High-Luminosity era of the LHC, right after the upgrades of the second Long Shutdown of the Large Hadron Collider (LHC). The ongoing state-of-the-art experimental instrument upgrades require high-performance simulation framework in the background, which is modern, robust, and comes with long term support.
Here we present the HIJING++ (Heavy Ion Jet INteraction Generator, C++ version), which is the successor of the original FORTRAN version, has been used intensively since almost three decades by the heavy-ion community.
HIJING++ contains all the (improved and fine tuned) physics that it's predecessor have. Embedding specific Pythia8 features we adopted also some effects such as color reconnection (CR) and multiparton interaction (MPI), that proved to be crucial recently in the understanding of the experimental results. Moreover, the nuclear medium effect modules like jet quenching and induced gluon radiation were implemented. Development of the HIJING++ framework is based on solid C++ foundations, which became a well established standard among the high energy physics community. Thanks to the modular nature of the language and utilizing it's best features the HIJING++ is highly customizable and very flexible: it can be extended with new features and with new physics in a convenient, easily maintainable way. During the development we keep in mind the requirements of the high-energy heavy-ion community: it has a native thread based parallelism, an easy-to-use analysis interface and a modular plugin system, which makes room for possible future improvements like GPU acceleration.
In this talk, I will present the structure of the HIJING++ and its application indeed. The key aspects of the improved physics is presented, with emphasis on the new jet quenching module based on the Gyulassy-Lévai-Vitev formalism will be reviewed. I will also show qualitative and performance studies in comparisons to other heavy-ion Monte Carlo code developments and to recent experimental results.
