15–17 Jan 2020
Kimmel Center for University Life
America/New_York timezone

Quark-gluon discrimination with point clouds

15 Jan 2020, 11:30
20m
KC 802 (Kimmel Center for University Life)

KC 802

Kimmel Center for University Life

60 Washington Square S, New York, NY 10012

Speaker

Vinicius Massami Mikuni (Universitaet Zuerich (CH))

Description

Quark-gluon tagging refers to the task of identifying the origin of a jet as produced from the hadronization of a gluon or a quark. Common methods rely on jet constituent properties to disentangle the two objects to varying degrees of success. In this talk an innovative method of classifying jets according to its constituents is introduced. The method uses the information of the constituents to build a graph-based neural network aided by attention mechanisms. The implementation is similar to the one presented in [1], achieving an improved performance for the methods described in [2].

[1] C. Chen, L. Z. Fragonara, and A. Tsourdos, Gapnet: Graph attention based point neural network for exploiting local feature of point cloud, 2019.
[2] H. Qu and L. Gouskos, ParticleNet: Jet Tagging via Particle Clouds, [arXiv:1902.08570]

Author

Vinicius Massami Mikuni (Universitaet Zuerich (CH))

Co-author

Florencia Canelli (Universitaet Zuerich (CH))

Presentation materials