Search for Axionlike Particles Produced in e⁺ e⁻ Collisions at Belle II

Abstract

International audienceWe present a search for the direct production of a light pseudoscalar a decaying into two photons with the Belle II detector at the SuperKEKB collider. We search for the process e+e-→γa, a→γγ in the mass range 0.2

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    Last time updated on 08/01/2021