The New Narrow "D_s" States -- A Minireview
Abstract
The experimental status concerning the two new narrow states with charm-strange content is reviewed. The states have masses of 2317 and 2460 MeV, widths less than 10 MeV, isospin consistent with zero, and spin-parities consistent with being 0^+ and 1^+, respectively. Although the masses are lower than the conventional expectation, these states appear to be the j=1/2 P-wave levels of the D_s system, where j is the light quark angular momentum; there may be mixing with the j=3/2 level for the 1^+ state.
Keywords
Cite
@article{arxiv.hep-ex/0312019,
title = {The New Narrow "D_s" States -- A Minireview},
author = {Frank C. Porter},
journal= {arXiv preprint arXiv:hep-ex/0312019},
year = {2010}
}
Comments
4 pages, 10 figures LaTeX; To appear in Proceedings of the International Europhysics Conference on High Energy Physics, July 17-23, 2003, Aachen. A (long file) version with some clearer figures may be found at: http://www.hep.caltech.edu/~fcp/papers/eps03.pdf This version updates version 1 with a correction to labelling of Fig. 8 (Thanks to U.Karshon for noticing this)