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arXiv · 0908.1142

Comment on "Study of D(sJ) decays to D(*)K in inclusive e(+)e(-) interactions"

Eef van Beveren·George Rupp
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Abstract

We comment on the recent observation of the decay mode D(sJ)(*)(2860)-->D(*)K by the BABAR Collaboration [arXiv:0908.0806], and contest their peremptory conclusion that the data exclude a 0(+) assignment for the D(sJ)(*)(2860). In particular, we argue that the observed branching fraction B(D(sJ)(*)(2860)-->D(*)K)/B(D(sJ)(*)(2860)-->DK)=1.1 pm 0.15 pm 0.19 supports the existence of two largely overlapping resonances at about 2.86 GeV, namely a pair of radially excited tensor 2(+) and scalar 0(+) c-sbar states. This scenario is further justified by comparing with the corresponding excited charmonium states. Also other aspects of the charm-strange spectrum are discussed.

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Eef van Beveren, George Rupp. 2009-08-10. Comment on "Study of D(sJ) decays to D(*)K in inclusive e(+)e(-) interactions". https://doi.org/10.1103/physrevd.81.118101

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