3 papers
hep-ex2026
A search for feebly-interacting particles in decays with missing energy at Belle
Belle, Belle II Collaborations, : +406
We present a search for an invisible hidden-sector particle , produced in and decays, where , $…
hep-ex2020
Search for Axion-Like Particles produced in collisions at Belle II
Belle II collaboration, F. Abudinen, I. Adachi +334
We present a search for the direct production of a light pseudoscalar decaying into two photons with the Belle II detector at the SuperKEKB collider. We search for the process…
hep-ex2019
Search for an invisibly decaying boson at Belle II in plus missing energy final states
Belle II Collaboration, I. Adachi, P. Ahlburg +358
Theories beyond the standard model often predict the existence of an additional neutral boson, the . Using data collected by the Belle II experiment during 2018 at the…