15-18 April 2019
CERN
Europe/Zurich timezone
There is a live webcast for this event.

GroomRL: jet grooming through reinforcement learning

17 Apr 2019, 16:30
20m
500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium

CERN

400
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Speaker

Frederic Alexandre Dreyer (Oxford)

Description

We introduce a novel implementation of a reinforcement learning algorithm which is adapted to the problem of jet grooming, a crucial component of jet physics at hadron colliders. We show that the grooming policies trained using a Deep Q-Network model outperform state-of-the-art tools used at the LHC such as Recursive Soft Drop, allowing for improved resolution of the mass of boosted objects. The algorithm learns how to optimally remove soft wide-angle radiation, allowing for a modular jet grooming tool that can be applied in a wide range of contexts.

Preferred contribution length 20 minutes

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