$D_{sJ}(2860)$ resonance and the $s_\ell^P={5\over 2}^-$ $c \bar s$ ($c \bar q$) doublet

Colangelo, P.; De Fazio, F.; Nicotri, S.

$D_{sJ}(2860)$ resonance and the $s_\ell^P={5\over 2}^-$ $c \bar s$ ($c \bar q$) doublet

Authors

Colangelo, P.

De Fazio, F.

Nicotri, S.

Description

We analyze the recently discovered $D_{sJ}(2860)$ meson using arguments based on the heavy quark expansion together with the experimental observations. We consider the possible quantum number assignments, arguing that the interpretation of the meson as the $J^P=3^-$ $c \bar s$ state is favoured.
LaTeX, 9 pages, 1 figure - published version