Low Energy Electron Positron Physics at Jefferson Lab

The DarkLight Experiment at ARIEL TIRUMF

Not scheduled

20m

F113 (CEBAF CENTER)

Speaker

Win Lin (Stony Brook University)

Description

The DarkLight experiment at the ARIEL facility at TRIUMF is designed to investigate beyond standard model physics at 10 to 20 MeV energy scale. Inspired by the anomalous signal observed in 8Be* decay by the ATOMKI group, DarkLight is searching for evidence of the possible new boson by measuring electron-positron pair production and reconstructing the photon mass using a two-spectrometer setup. In fall 2025, DarkLight was installed and data were taken for commissioning. In this presentation, an overview of the experiment will be given along with a discussion of the installation and preliminary analysis.

The PI’s group’s work on DarkLight is supported by DOE Grant DE-SC0024464. DarkLight has been supported by DOE, NSF, NSERC, and the Moore Foundation.