Exotic baryon states in QCD sum rule

A. G. Oganesian

Exotic baryon states in QCD sum rule

High Energy Physics - Phenomenology 2007-05-23 v2

Authors: A. G. Oganesian

Abstract

It is shown, that the small decay width of $\Theta^+ = uudd\bar{s}$ baryon is suppressed by chirality violation. It is shown that $\Theta^+$ decay width $\Gamma$ is proportional to $\alpha^2_s < 0 | \bar{q} q | 0 >^2$ , for any pentaquark current without derivatives.

Keywords

exotic baryon states QCD sum rule pentaquark chirality violation decay width

Cite

@article{arxiv.hep-ph/0410335,
  title  = {Exotic baryon states in QCD sum rule},
  author = {A. G. Oganesian},
  journal= {arXiv preprint arXiv:hep-ph/0410335},
  year   = {2007}
}

Comments

Talk presented at XYIII International Workshop "High Energy Physics adn Quantum Field Theory" SPB, 17-23June 2004, 6 pages, significantly revised, but all main conclusions and results doesn't change 1Fig

Exotic baryon states in QCD sum rule

Abstract

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