Locked differential rotation in core-helium burning red giants B. Mosser, G. Dréau, C. Pinçon, S. Deheuvels, K. Belkacem, Y. Lebreton, M.-J. Goupil and E. Michel A&A, 681 (2024) L20 Published online: 23 January 2024 DOI: 10.1051/0004-6361/202348338