The physical origin of the mass–size relation and its scatter for disk galaxies Min Du, Hong-Chuan Ma, Wen-Yu Zhong, Luis C. Ho, Shihong Liao and Yingjie Peng A&A, 686 (2024) A168 Published online: 07 June 2024 DOI: 10.1051/0004-6361/202348989