Work

Probing invisible dark photon models via atmospheric collisions

Year: 2026

Type: article

Abstract: A bstract Atmospheric collisions can copiously produce dark sector particles in the invisible dark photon model, leading to detectable signals in underground neutrino detectors. We consider the dark photon model with the mass mixing mechanism and use the Super-K detector to detect the electron recoil events caused by the atmospherically produced dark sector particles within the model. We find that the combined data from four Super-K runs yield new leading constraints for the invisible dark photon in the mass range of ~ (0.69 0.87) GeV, surpassing various previous constraints, including those from BaBar and NA64.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep02(2026)061

Authors: Mingxuan Du, Rundong Fang, Zuowei Liu, Wenxi Lu, Zicheng Ye

Institutions: Peking University, Nanjing University

Language: English

Topic: Dark Matter and Cosmic Phenomena

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funder: National Natural Science Foundation of China

Awards: G1038122645, G7301394743