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.
PACS: 14.40.Lb Charmed mesons – 13.66.Bc Hadron production in e-e+ interactions
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Porter, F.C. The new narrow “D s ” states – A minireview. Eur Phys J C 33 (Suppl 1), s219–s222 (2004). https://doi.org/10.1140/epjcd/s2004-03-1785-7
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DOI: https://doi.org/10.1140/epjcd/s2004-03-1785-7