Pentaquark from QCD sum rules: consequences of the diquark approach
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
In this work we investigate the consequences of the Jaffe and Wilczek diquark model in the framework of QCD sum rules. An analysis of the Theta^+(1540) as (ud)^2\bar{s} state shows that the mass of the pentaquark is compatible with the experimentally measured value. The mass difference between the Theta^+ and the pentaquark with the quantum numbers of the nucleon amounts to 70 MeV and is consistent with the interpretation of the N(1440) as a pentaquark.
Keywords
Cite
@article{arxiv.hep-ph/0408032,
title = {Pentaquark from QCD sum rules: consequences of the diquark approach},
author = {Markus Eidemuller},
journal= {arXiv preprint arXiv:hep-ph/0408032},
year = {2007}
}
Comments
4 pages, 2 figures, talk given at the International QCD Conference, Montpellier, July 2004