The Belle II detector at the SuperKEKB accelerator has a level 1 trigger implemented in field-programmable gate arrays. Due to the high luminosity of the beam, a trigger that effectively rejects beam induced background is required. A three dimensional tracking algorithm for the level 1 trigger that uses the Belle II central drift chamber detector response is being developed to reduce the recorded beam background while having a high efficiency for physics of interest. In this paper, we describe the three dimensional track trigger that finds and fits track parameters which we developed.
Cite
@article{arxiv.1711.02800,
title = {Three dimensional fast tracker for central drift chamber based level 1 trigger system in the Belle II experiment},
author = {E. Won and J. B. Kim and B. R. Ko},
journal= {arXiv preprint arXiv:1711.02800},
year = {2018}
}