Exploring the giant dipole resonance width in Pb208 and its constraints on symmetry energy and in-medium nucleon-nucleon cross section in the Extended Quantum Molecular Dynamics Model via a stochastic binary collision approachRemoveChen-Zhong Shi (施晨钟), Xiang-Zhou Cai (蔡翔舟), and Yu-Gang Ma (马余刚)Phys. Rev. C 113, 034614 (2026)