Author(s)

Rismita Ghosh^1*, Aparajita Bhattacharya¹, Ballari Chalrabarti²

¹Department of Physics, Jadavpur University, Kolkata, India.
²Department of Physics, Jogamaya Devi College, Kolkata, India.

The masses of the recently reported by LHCb two pentaquark charmonium states P_c* (4380) and P_c* (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 P_c* (4380) and P_c* (4450) can be well described as meson-baryon bound states.

Pentaquark, Di-Hadronic Molecule, Molecular Interaction

Ghosh, R. , Bhattacharya, A. and Chalrabarti, B. (2015) The Masses of P_c* (4380) and P_c* (4450) as Di-Hadronic States. Journal of Modern Physics, 6, 2070-2073. doi: 10.4236/jmp.2015.614213.