10–17 Jul 2019
Ghent
Europe/Brussels timezone

Discrimination between prompt and long-lived particles using convolutional neural network

15 Jul 2019, 18:30
1h 30m
ICC - Arteveldeforum (Ghent)

ICC - Arteveldeforum

Ghent

Poster Searches for New Physics Wine & Cheese Poster Session

Speaker

Dr Swagata Mukherjee (Rheinisch Westfaelische Tech. Hoch. (DE))

Description

Sophisticated machine learning techniques, like computer vision, are state of the art in modern day research. These technologically advanced algorithms have promising potential in search for physics beyond Standard Model in Large Hadron Collider (LHC). Most of the computer vision tasks are surrounded around convolutional neural networks (CNN), which can provide powerful tools for differentiating between patterns of calorimeter energy deposits by prompt particles of Standard Model and long-lived particles predicted in various models beyond the Standard Model. We demonstrate the usefulness of CNN by using a couple of physics examples from well motivated BSM scenarios predicting long-lived particles giving rise to displaced jets. Our work suggests that modern machine-learning techniques have potential to discriminate between energy deposition patterns of prompt and long-lived particles, and thus, they can be useful tools in such searches.

Primary authors

Dr Swagata Mukherjee (Rheinisch Westfaelische Tech. Hoch. (DE)) Dr Biplob Bhattacherjee (Indian Institute of Science) Ms Rhitaja Sengupta (Indian Institute of Science)

Presentation materials

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