A foremost task in understanding the nature of the X(3872) involves the discrimination of the two-quark and multiquark configurations. In this work, we propose a method to probe the short-distance component of the X(3872) by measuring the ratio between the B-c semileptonic and nonleptonic decays into the X(3872). We demonstrate that if the X(3872) production mechanism is through the (c) over barc component, the ratios would be universal and could be reliably predicted in theory. Measurements of these ratios at LHC and the next-generation electron-positron colliders are capable of validating/invalidating this production mechanism and providing deeper insights into the nature of the X(3872). (C) 2016 The Authors. Published by Elsevier B.V.
National Natural Science Foundation of China [11575110, 11425525]
; Natural Science Foundation of Shanghai [11DZ2260700, 15DZ2272100, 15ZR1423100]
; Sino-German CRC 110 "Symmetries and the Emergence of Structure in QCD" (NSFC) [11261130311]
; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF111CJ1]
; Scientific Research Foundation for Returned Overseas Chinese Scholars, State Education Ministry
