APS April 2022

Session

ML

9 Apr 2022, 16:00

US

83. Point Cloud Deep Learning Methods for Pion Reconstruction in the ATLAS Detector

Mariel Pettee (Lawrence Berkeley National Lab. (US))

09/04/2022, 16:00

Oral presentation

Reconstructing the type and energy of isolated pions from the ATLAS calorimeters is a key step in hadronic reconstruction. The existing methods were optimized early in the experiment lifetime. We recently showed that image-based deep learning can significantly improve the performance over these traditional techniques. This note presents an extension of that work using point cloud methods...

117. Quark and Gluon Tagging Calibration with the ATLAS

Haoran Zhao (University of Washington (US))

09/04/2022, 16:00

Oral presentation

The separation of quark and gluon initiated jets(q/g jets) is crucial to enhance the reach of many new physics searches at the ATLAS experiment in the Large Hadron Collider. A tagger serving as a tool to distinguish quark and gluon jets is developed based on the Boosted Decision Tree using charged-particle track observables associated with the jet. However, quark-versus-gluon jet tagging is...