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

Arata Hayashigaki·Kunihiko Terasaki
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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.

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Arata Hayashigaki, Kunihiko Terasaki. 2005-12-12. Isospin quantum number of D_{s0}^+(2317). https://doi.org/10.1143/ptp.114.1191

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