Narrow width pentaquarks
High Energy Physics - Phenomenology
2009-11-10 v1
Abstract
A general study of pentaquarks built with four quarks in a L=1 state and an antiquark in S-wave shows that several of such states are forbidden by a selection rule, which holds in the limit of flavour symmetry, to decay into a baryon and a meson final state. We identify the most promising \bar{10} multiplet for the classification of the Theta^+ and Xi^{--} particles recently discovered with the prediction of a narrow width for both of them.
Keywords
Cite
@article{arxiv.hep-ph/0401083,
title = {Narrow width pentaquarks},
author = {F. Buccella and P. Sorba},
journal= {arXiv preprint arXiv:hep-ph/0401083},
year = {2009}
}
Comments
11 pages