2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/191936QCD string model is employed to calculate the masses and spin splittings of lowest charmonium hybrid states with a magnetic gluon. Relative decay rates into various S- and P-wave D-meson pairs are calculated for these hybrids.RevTeX4, 19 pages, introduction extended, version to appear in Phys.Rev.DHigh Energy Physics - Phenomenologytext