A unified formalism to study the pseudorapidity spectra in heavy-ion collision Rohit Gupta, Aman Singh Katariya and Satyajit Jena Eur. Phys. J. A, 57 7 (2021) 224 Published online: 08 July 2021 DOI: 10.1140/epja/s10050-021-00529-1