The Masses of P<sub>c</sub>* (4380) and P<sub>c</sub>* (4450) as Di-Hadronic States

• 作者: Aparajita Bhattacharya Ballari Chalrabarti Rismita Ghosh
• 来源期刊: 现代物理(英文)
• 学科: 化学
• 关键词: PENTAQUARK Di-Hadronic Molecule Molecular Interaction
• 年，卷（期）: 2015,（14）
• 页码范围: 2070-2073
• 页数: 4页
• 分类号: O6

摘要

The masses of the recently reported by LHCb two pentaquark charmonium states Pc* (4380) and Pc* (4450) which are suggested to possess pentaquark configuration () have been estimated considering a dihadronic state consisting of a meson? and a baryon (uud). The binding energies of the states have been estimated with a van der Walls type of molecular interaction between the hadrons. A spin interaction has also been considered. Masses of these two states are well reproduced with the aforesaid molecular interaction which indicates that the multiquarks Pc* (4380) and Pc* (4450) can be well described as meson-baryon bound states.