n-Musketeers: Reinforcement Learning Shapes Collaboration Among Language Models. - Ryozo Masukawa; Sanggeon Yun; Hyunwoo Oh; SuhgHeon Jeong; Raheeb Hassan; Hanning Chen; Wenjun Huang 001; Mahdi Imani; Pietro Mercati; Nathaniel D. Bastian; Mohsen Imani (CoRR, 2026)