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HK: Fachverband Physik der Hadronen und Kerne
HK 70: Hadron Structure and Spectroscopy IX
HK 70.5: Talk
Thursday, March 14, 2024, 17:00–17:15, HBR 62: EG 18
A feasibility study for the dark photon search at the BGOOD experiment — •Vlera Hajdini for the BGOOD collaboration — Physikalisches Institut, Universität Bonn
Investigating the potential feeble interaction between particles in the Standard Model (SM) and the Dark Matter (DM) sector is a significant frontier in particle physics. One possible manifestation of this feeble interaction is the dark photon, theorized as a vector gauge mediator that interacts very weakly with SM fermions.
The BGOOD photoproduction experiment combines a central electromagnetic calorimeter with a forward spectrometer for charged particle detection. This configuration enables the complete detection of reaction final states such as π0 p, η p, and 2π0 p. These are well-suited channels for the study of the mass resolution with regard to the dark photon search. The missing mass of the photons from η and π0 decays were used to determine the mass resolution of the detector. Kinematic fitting techniques are also used to enhance the mass resolution, a critical element for accurate particle identification in high-energy experiments.
Keywords: BGOOD; photoproduction; dark photon; mass resolution; kinematic fit