Pentaquarks in string dynamics

I. M. Narodetskii; C. Semay; B. Silvestre-Brac; Yu. A. Simonov

doi:10.1016/j.nuclphysbps.2005.01.064

Pentaquarks in string dynamics

High Energy Physics - Phenomenology 2009-11-10 v2

Authors: I. M. Narodetskii , C. Semay , B. Silvestre-Brac , Yu. A. Simonov

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Abstract

The masses of $uudd\bar s$ , $uudd\bar d$ , and $uuss\bar d$ pentaquarks are evaluated in a framework of both the Effective Hamiltonian approach to QCD and spinless Salpeter using the Jaffe-Wilczek diquark approximation and the string interaction for the diquark-diquark-antiquark system. The masses of the light pentaquarks are found to be in the region above 2 GeV. The similar calculations yield the mass of $[ud]^2\bar c$ pentaquark $\sim$ 3250 MeV and $[ud]^2\bar b$ pentaquark $\sim$ 6509 MeV.

Keywords

tetraquark quark masses pentaquark

Cite

@article{arxiv.hep-ph/0409304,
  title  = {Pentaquarks in string dynamics},
  author = {I. M. Narodetskii and C. Semay and B. Silvestre-Brac and Yu. A. Simonov},
  journal= {arXiv preprint arXiv:hep-ph/0409304},
  year   = {2009}
}

Comments

5 pages. Based on talk by I.M.Narodetskii at BEACH 2004, 6th International Conference on Hyperons, Charm and Beauty Hadrons, Illionois Institute of Technology, Chicago, June. 27 - July 3, 2004. Typos corrected

Pentaquarks in string dynamics

Abstract

Keywords

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