分类: 物理学 >> 核物理学 提交时间: 2016-09-01
摘要: We investigate the charmed baryon production reaction pp¯→ΛcΛ¯c in an effective Lagrangian approach. Besides the t-channel D0 and D∗0 mesons exchanges, the s-channel Y(4630) meson exchange is taken into account. For the total cross sections, the D0 and D∗0 mesons provide minor background contributions, while the Y(4630) state gives a clear peak structure with the magnitude of 10 μb at center of mass energy 4.63 GeV. Basing on the results, we suggest that the reaction of pp¯→ΛcΛ¯c can be used to search for the 1−− charmonium-like Y(4630) state, and our predictions can be tested in future by theP¯ANDA facility.