Accurate potential surfaces for the ground state of H+C2 reaction De-Quan Wang, Li-Wei Fu, Ze-Xing Qu, Ya-Kun Chen and Xu-Ri Huang Eur. Phys. J. D, 71 10 (2017) 252 Published online: 12 October 2017 DOI: 10.1140/epjd/e2017-80414-1