Understanding masses of $c\bar{s}$ states in Regge phenomenology

Details Understanding masses of $c\bar{s}$ states in Regge phenomenology Understanding masses of $c\bar{s}$ states in Regge phenomenology

2007-03-27

arxiv.org/abs/hep-ph/0703278v1

Eur.Phys.J.C51:359-365,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 3 figures, to appear in Eur. Phys. J. C

Scientific paper

10.1140/epjc/s10052-007-0286-7

In the framework of Regge phenomenology, masses of the charmed states $c\bar{q} (q=u,d,s)$ lying on the $1^3S_1$-like trajectories are estimated. The overall agreement between our estimated masses and the recent predictions given by modified quark models[hep-ph/0605019, hep-ph/0608011, hep-ph/0608139] is good. Masses of the observed charmed states $D_{s0}(2317)$, $D_{sJ}(2860)$ and $D_{sJ}(2690)$/$D_{sJ}(2700)$ can be reasonably reproduced in the picture of these charmed states as simple quark-antiquark configurations. We therefore suggest the $D_{s0}(2317)$ can be identified as the $c\bar{s}(1^3P_0)$ states. The possible assignments of the $D_{sJ}(2860)$ and $D_{sJ}(2690)$/ $D_{sJ}(2700)$ are discussed.

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