Unbinned unfolding method with machine learning

21 Jun 2024, 17:30
2h
Near Aula Magna (U6 building) (University of Milano-Bicocca)

Near Aula Magna (U6 building)

University of Milano-Bicocca

Poster Neutrino interactions Poster session and reception 2

Speaker

Masaki Kawaue (Kyoto U)

Description

The choice of unfolding method for a cross-section measurement is tightly coupled to the model dependence of the efficiency correction and the overall impact of cross-section modeling uncertainties in the analysis. A key issue is the dimensionality used, as the kinematics of all outgoing particles in an event typically affects the reconstruction performance in a neutrino detector. OmniFold is an unfolding method that iteratively reweights a simulated dataset using machine learning to utilize arbitrarily high-dimensional information that has previously been applied to collider and cosmology datasets. Here, we demonstrate its use for neutrino physics using a public T2K near detector simulated dataset, and show its performance is comparable to or better than traditional approaches using a series of mock data sets.

Poster prize Yes
Given name Masaki
Surname Kawaue
First affiliation Kyoto university
Institutional email kawaue.masaki.25r@st.kyoto-u.ac.jp
Gender Male
Collaboration (if any) T2K

Primary author

Masaki Kawaue (Kyoto U)

Presentation materials