Isospin quantum number of D_{s0}^+(2317)

Abstract

The D_s^+ pi^0 and D_s^{*+} gamma decays of the D_{s0}^+(2317) are studied by assigning it to various charmed strange scalar mesons. As a result, it is found that its assignment to an iso-triplet four-quark meson is favored by the severest experimental constraint on the ratio of the rates for these decays, while assigning it to an I=0 state (a four-quark or a conventional {c\bar{s}}) is inconsistent with this constraint.

6 pages, no figure, RevTeX4, references added and clarification of text

References in corpus (2)

• Excited Charmed Mesons: Observations, Analyses and Puzzles
• Decay properties of new D-mesons

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