X(3915) and X(4350) as New Members in the P-Wave Charmonium Family

作者：Liu, Xiang^*; Luo, Zhi-Gang; Sun, Zhi-Feng

来源：Physical Review Letters, 2010, 104(12): 122001.

DOI：10.1103/PhysRevLett.104.122001

• GENERAL-THEORY
• COLLISIONS
• PARTICLES
• PHYSICS
• SPECTRA
• MESONS
• QUARK
• SPIN

The analysis of the mass spectrum and the calculation of the strong decay of P-wave charmonium states strongly purport to explain the newly observed X(3915) and X(4350) as new members in the P-wave charmonium family, i.e., chi'(c0) for X(3915) and chi ''(c2) for X(4350). Under the P-wave charmonium assignment to X(3915) and X(4350), the J(PC) quantum numbers of X(3915) and X(4350) must be 0(++) and 2(++) respectively, which provide important criteria to test the P-wave charmonium explanation for X(3915) and X(4350) proposed by this Letter. The decay behavior of the remaining two P-wave charmonium states with the second radial excitation is predicted, and an experimental search for them is suggested.

• 出版日期2010-3-26
• 单位中国科学院近代物理研究所; 北京大学; 兰州大学