Bounds on the width, mass difference and other properties of X(3872) --> pi+pi-J/psi decays

PAO-TI CHANGMIN-ZU WANGPISIN CHEN2018-09-102018-09-102011-07http://inspirehep.net/record/916712http://scholars.lib.ntu.edu.tw/handle/123456789/364392Bounds on the width, mass difference and other properties of X(3872) --> pi+pi-J/psi decaysjournal article10.1103/PhysRevD.84.052004