Basic physics of collisionless three-dimensional reconnection in the solar corona related to Yohkoh observations Original Research Article

New results concerning magnetic reconnection in the solar corona are reviewed. We apply the collisionless 3D reconnection theory — more exactly, the model of a high-temperature turbulent-current non-neutral current sheet — to the coronal conditions derived from the observations with the HXT and SXT onboard Yohkoh. New interpretations are discussed of the Yohkoh data on the site and mechanism of magnetic energy transformation into kinetic and thermal energies of superhot plasmas and accelerated high-energy particles. Open issues are the focus of our attention.