Charmed $$\Omega _c$$ weak decays into $$\Omega $$ in the light-front quark model Yu-Kuo Hsiao, Ling Yang, Chong-Chung Lih and Shang-Yuu Tsai Eur. Phys. J. C, 80 11 (2020) 1066 Published online: 19 November 2020 DOI: 10.1140/epjc/s10052-020-08619-y