On model-independent searches for direct CP violation in multi-body decays
High Energy Physics - Experiment
2017-08-02 v2 High Energy Physics - Phenomenology
Abstract
Techniques for performing model-independent searches for direct CP violation in three and four-body decays are discussed. Comments on the performance and the optimisation of a binned chisquare approach and an unbinned approach, known as the energy test, are made. The use of the energy test in the presence of background is also studied. The selection and treatment of the coordinates used to describe the phase-space of the decay are discussed. The conventional model-independent techniques, which test for P-even CP violation, are modified to create a new approach for testing for P-odd CP violation. An implementation of the energy test using GPUs is described.
Keywords
Cite
@article{arxiv.1612.04705,
title = {On model-independent searches for direct CP violation in multi-body decays},
author = {Chris Parkes and Shanzhen Chen and Jolanta Brodzicka and Marco Gersabeck and Giulio Dujany and William Barter},
journal= {arXiv preprint arXiv:1612.04705},
year = {2017}
}