  Usually the superconducting pairing is considered to modify electronic states
only in a narrow momentum range close to the Fermi surface. Here we present a
direct experimental observation of fusion of Bogoliubov dispersion branches
originating from the antipodal Fermi crossings by means of angle-resolved
photoemission spectroscopy (ARPES). Uncommon discernibility and brightness of
bogoliubons' fusion stems from comparability of the superconducting gap
magnitude and the distance from the Fermi level to the band's top, and strong
electron scattering on a mode with similar energy. Such similarity of the
electronic and pairing energy scales seems to be a persistent associate of
high-temperature superconductivity (HTSC) rather than just a mere coincidence.
