XIIIth International Symposium on Nuclear Symmetry Energy (NuSym25)

Deblurring on triple-differential yield from $ {}^{132,108} \mathrm{Sn} + {}^{124,112} \mathrm{Sn} $ @ $ 270 A \, \mathrm{MeV} $ collision from SPiRIT

9 Sept 2025, 16:50

2h 10m

Auditorium (8F) (Integrated Innovation Building (IIB), RIKEN Kobe Campus)

2. Heavy-ion collision experiments and transport model simulations NuSym Poster Session

Speaker

Jeonghyeok Park (Korea Univeristy)

Description

The triple-differential yield as functions of the transverse momentum, the
rapidity and the azimuthal angle relative to the estimated reaction plane
is a critical observable for the collective-flow analysis in heavy-ion
collisions. However, the triple-differential yield can be degraded by not
only methodology to estimate reaction plane direction but also imperfect
detector performance such as the detection inefficiency and detector
acceptance. Richardson-Lucy deblurring algorithm describes a method
to restore the degraded intensity distributions and is widely used in
various fields such as optics and astronomy. Inspired by this algorithm,
the dedicated deblurring algorithm has been developed and applied to
the analysis for $ {}^{132,108} \mathrm{Sn} + {}^{124,112} \mathrm{Sn} $ at $ 270 A \, \mathrm{MeV} $ by the SPiRIT
Collaboration. In this presentation, we describe the deblurring process
using the Richardson-Lucy algorithm to restore the triple-differential yield
compared to the results without applying the deblurring process.

Presentation materials

NuSym2025_포스터_박정혁.pdf