Title: $X(3872)$ as virtual companion pole of the charm-anticharm state $chi_{c1}(2P)$
Authors: F. Giacosa, M. Piotrowska and S. Coito,
Journal: Int. J. Mod. Phys. A 34 (2019) no.29, 1950173
Publication type: article
DOI: 10.1142/S0217751X19501732