JMP  Vol.6 No.14 , November 2015
The Masses of Pc* (4380) and Pc* (4450) as Di-Hadronic States
ABSTRACT
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.

Cite this paper
Ghosh, R. , Bhattacharya, A. and Chalrabarti, B. (2015) The Masses of Pc* (4380) and Pc* (4450) as Di-Hadronic States. Journal of Modern Physics, 6, 2070-2073. doi: 10.4236/jmp.2015.614213.
References
[1]   Aaij, R., et al. (LHCb Collaboration) (2015) Physical Review Letters, 115, Article ID: 072001(50).

[2]   Gell-Mann, M. (1964) Physics Letters, 8, 214-215.
http://dx.doi.org/10.1016/S0031-9163(64)92001-3

[3]   Jaffe, R.L., et al. (2003) Physical Review Letters, 91, Article ID: 232003(1-4).

[4]   Karlinar, M., et al. (2003) Physics Letters B, 575, 249-255.
http://dx.doi.org/10.1016/j.physletb.2003.09.062

[5]   Jaffe, R.L. (1977) Physical Review D, 15, 281-289.
http://dx.doi.org/10.1103/PhysRevD.15.281

[6]   Strottman, D. (1979) Physical Review D, 20, 748-767.
http://dx.doi.org/10.1103/PhysRevD.20.748

[7]   Barnes, T., et al. (1987) Physical Review Letters B, 183, 210.
http://dx.doi.org/10.1016/0370-2693(87)90440-0

[8]   Weinstein, J., et al. (1983) Physical Review D, 27, 588.
http://dx.doi.org/10.1103/PhysRevD.27.588

[9]   Vinodkumar, P.C., et al. (1992) Pramana-Journal of Physics, 39, 47-70.

[10]   Vinodkumar, P.C., et al.(2003) DAE-BRNS Symposium on Nuclear Physics, 46B, 334.

[11]   Bhattacharya, A., et al. (1998) European Physical Journal C, 2, 671-673.

[12]   Bhattacharya, A., et al. (2005) Nuclear Physics (Proceedings Supplements), B142, 13.
http://dx.doi.org/10.1016/j.nuclphysbps.2005.01.002

[13]   Rai, A.K., et al. (2006) Indian Journal of Physics, 80, 387-392.

[14]   Chakrabarti, B., et al. (2009) Physica Scripta, 79, Article ID: 025103.
http://dx.doi.org/10.1088/0031-8949/79/02/025103

[15]   Mohr, P.J., et al. (2011) The 2010 CODATA Recommended Values of the Fundamental Physical Constants. National Institute of Standards and Technology, Gaithersburg.

[16]   Alexandrou, C., et al. (2007) PoSLAT2007, 149.

[17]   Banerjee, S.N., et al. (1987) International Journal of Modern Physics A, 2, 1829.
http://dx.doi.org/10.1142/S0217751X87000958

[18]   Bhattacharya, A., et al. (1988) Canadian Journal of Physics, 66, 749-751.
http://dx.doi.org/10.1139/p88-123

[19]   Hong, C., et al. (2001) Chinese Physics Letters, 18, 1558.
http://dx.doi.org/10.1088/0256-307X/18/12/305

[20]   Rai, A.K., et al. (2007) Nuclear Physics A, 782, 406-409.
http://dx.doi.org/10.1016/j.nuclphysa.2006.10.023

[21]   Lucha, W., et al. (1991) Physics Report, 200, 168.
http://dx.doi.org/10.1016/0370-1573(91)90001-3

[22]   Beringer, J., et al. (Particle Data Group) (2012) Physical Review D, 86, Article ID: 010001.
http://dx.doi.org/10.1103/PhysRevD.86.010001

[23]   Li, G.N., et al. (2015) arXiv:1507.08252v2 [hep-ph].

 
 
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