Charmonium possibility of X(3872)

Abstract

Properties of Regge trajectories for charmonium are studied. Possible interpretations and their implications to newly observed X(3872) are examined. It is found that the mass of X(3872) is consistent with the 1^{++} 2^3P_1 and the 2^{-+} 1^1D_2 charmonium states.

Comments: 6 pages, 4 eps figures, 1 table, RevTex, published version in PLB with another title