29 January 2024 to 2 February 2024
CERN
Europe/Zurich timezone

Accelerating the search for mass bumps using the Data-Directed Paradigm

30 Jan 2024, 15:00
20m
40/S2-D01 - Salle Dirac (CERN)

40/S2-D01 - Salle Dirac

CERN

115
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Contributed talk 2 ML for analysis : event classification, statistical analysis and inference, including anomaly detection Contributed Talks

Speaker

Bruna Pascual (Universite de Montreal (CA))

Description

The Data-Directed paradigm (DDP) is a search strategy for efficiently probing new physics in a large number of spectra with smoothly-falling SM backgrounds. Unlike the traditional analysis strategy, DDP avoids the need for a simulated or functional-form based background estimate by directly predicting the statistical significance using a convolutional neural network trained to regress the log-likelihood-based significance. In this way, a trained network is used to identify mass bumps directly on data. By saving a considerable amount of time, this approach has the potential to expand the discovery reach by checking many unexplored regions. The method has shown good performance when finding various beyond standard model particles in simulation data. A description of the method and recent developments will be presented.

Authors

Ali El Moussaouy (Universite de Montreal (CA)) Amit Shkuri (Weizmann Institute of Science (IL)) Bruna Pascual (Universite de Montreal (CA)) Emile Baril (Universite de Montreal (CA)) Etienne Dreyer (Weizmann Institute of Science (IL)) Eva Mayer (Université Clermont Auvergne (FR)) Fannie Bilodeau (Universite de Montreal (CA)) Georges Azuelos (Universite de Montreal (CA)) Jean-Francois Arguin (Universite de Montreal (CA)) Julien Noce Donini (Université Clermont Auvergne (FR)) Nilotpal Kakati (Weizmann Institute of Science (IL)) Samuel Calvet (LPC Clermont-Ferrand, IN2P3 / UCA (FR)) Shikma Bressler (Weizmann Institute of Science (IL))

Presentation materials