Scale-(in)dependence in quantum 4-body scattering Sourav Mondal, Rakshanda Goswami, Udit Raha and Johannes Kirscher Eur. Phys. J. A, 61 4 (2025) 71 Published online: 05 April 2025 DOI: 10.1140/epja/s10050-025-01538-0