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arXiv · 1307.7100

Predicition for the decay width of a charged state near the $D_s\bar{D}^*/D^*_s\bar{D}$ threshold

Jorgivan M. Dias·Xiang Liu·Marina Nielsen
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Abstract

Very recently it was predicted the existence of a charged state near the $D_s\bar{D}^*/D^*_s\bar{D}$ threshold. This state, that we call $Z_{cs}^+$, would be the strange partner of the recently observed $Z_c^\pm(3900)$. Using standard techniques of QCD sum rules, we evaluate the three-point function for the vertices $Z_{cs}^+ \, J/ψ\, K^+$, $Z_{cs}^+ \, η_c \, K^{*+}$ and $Z_{cs}^+ \, D_s^+\bar{D}^{*0}$ and we make predictions for the corresponding decay widths in these channels.

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Jorgivan M. Dias, Xiang Liu, Marina Nielsen. 2013-07-26. Predicition for the decay width of a charged state near the $D_s\bar{D}^*/D^*_s\bar{D}$ threshold. https://doi.org/10.1103/physrevd.88.096014

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