We present a software framework for Belle II that reconstructs B mesons in many decay modes with minimal user intervention. It does so by reconstructing particles in user-supplied decay channels, and then in turn using these reconstructed particles in higher-level decays. This hierarchical reconstruction allows one to cover a relatively high fraction of all B decays by specifying a limited number of particle decays. Multivariate classification methods are used to achieve a high signal-to-background ratio in each individual channel. The entire reconstruction, including the application of pre-cuts and classifier trainings, is automated to a high degree and will allow users to retrain to account for analysis-specific signal-side selections.
@article{arxiv.1410.3259,
title = {An automated framework for hierarchical reconstruction of B mesons at the Belle II experiment},
author = {Christian Pulvermacher and Thomas Keck and Michael Feindt and Martin Heck and Thomas Kuhr},
journal= {arXiv preprint arXiv:1410.3259},
year = {2014}
}
Comments
5 pages, 3 figures. To appear in the proceedings of the 16th International workshop on Advanced Computing and Analysis Techniques in physics research (ACAT 2014)