By using a combined amplitude analysis of the gamma gamma -> D (D) over bar and gamma gamma -> J/psi omega data, we demonstrate that the X(3915), which is quoted as a J(PC) = 0(++) state in the Particle Data Group table, is favored by the data to be a J(PC) = 2(++) state appearing in both channels, which means that the X(3915) and the X(3930) can be regarded as the same J(PC) = 2(++) state. Meanwhile, the data also prefer a large helicity-0 contribution of this tensor resonance to the amplitudes instead of the helicity-2 dominance assumed by BABAR, which may indicate a sizable portion of non-q (q) over bar components in this state. Identifying the X(3915) with the X(3930) and abandoning the helicity-2 dominance for this tensor state are helpful for the further understandings of the properties of this state and also of the mysterious "XYZ" charmoniumlike resonances.
National Natural Science Foundation of China [11375044, 11105138, 11235010]
; Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
; Fundamental Research Funds for the Central Universities [WK2030040020]