Using Radiative Transitions to Test the 1^3P_0(c\bar{s}) Nature of the D_{sJ}^*(2317)^+ State
Abstract
The Babar collaboration has recently observed a state decaying to D_s^+\pi^0 and suggest that one possible explanation is that it is the D_s(1^3P_0) state. In this note we compare the properties of the D_{sJ}^*(2317)^+ to those expected of the D_s(1^3P_0) state. We expect a D_s(1^3P_0) with the reported mass to be extremely narrow, \Gamma \sim {\cal O}(10\hbox{keV}), with a large branching ratio to D^*_s\gamma. Crucial to this interpretation of the Babar observation is the measurement of its radiative transition to D_s^*. We also note that it may be possible to observe the D_{s1}(2536) in radiative transitions to the D_s^*.Keywords
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