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

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.

regular LaTeX, 4 pages

References in corpus (10)

• $D_{sJ}(2860)$ and $D_{sJ}(2715)$
• Study of $D_{sJ}$ decays to $D^{\ast }K$ in inclusive $e^{+}{e}^{-}$ interactions
• Canonical Interpretation of the D_{sJ}(2860) and D_{sJ}(2690)
• D_{sJ}(2860) as the first radial excitation of the D_{s0}^*(2317)
• $D_{sJ}(2860)$ resonance and the $s_{\ell }^P={\frac{5}{2}}^{-}$ $c\bar{s}$ ($c\bar{q}$) doublet
• Strong decays of newly observed $D_{sJ}$ states in a constituent quark model with effective Lagrangians
• Recoupling matrix elements and decay
• Production of hadron pairs in electron-positron annihilation near the K(+)K(-), D-Dbar, B-Bbar and Lambda(c)(+)-Lambda(c)(-) thresholds
• Implications to $c\bar{s}$ assignments of $D_{s1}(2700{)}^{\pm }$ and $D_{sJ}(2860)$
• Investigating quantum numbers of new $c\bar{s}$ states

Cited by in corpus (20)

• A review of the open charm and open bottom systems
• Properties of Excited Charm and Charm-Strange Mesons
• New meson spectroscopy with open charm and beauty
• Strong and radiative decays of the low-lying $S$- and $P$-wave singly heavy baryons
• Charmed-strange mesons revisited: mass spectra and strong decays
• The newly observed open-charm states in quark model
• D and D_s meson spectroscopy
• Strong and radiative decays of the low-lying $D$-wave singly heavy baryons
• $B_s\to D_s(3040)$ form factors and $B_s$ decays into $D_s(3040)$
• More kaonic bound states and a comprehensive interpretation of the D_{sJ} states
• Strong decays of the newly observed $D(2550)$, $D(2600)$, $D(2750)$, and $D(2760)$
• Strong decays of higher excited heavy-light mesons in a chiral quark model
• Implication of BaBar's new data on the $D_{s1}(2710)$ and $D_{sJ}(2860)$
• Modern meson spectroscopy: the fundamental role of unitarity
• Comment on the Nature of the $D_{s1}^{\ast }(2710)$ and $D_{sJ}^{\ast }(2860)$ Mesons
• $D_{s1}^{\ast }(2860)$ and $D_{s3}^{\ast }(2860)$: Candidates for $1D$ charmed-strange mesons
• Regge-like spectra of excited singly heavy mesons
• Quasi-bound states in the continuum: a dynamical coupled-channel calculation of axial-vector charmed mesons
• Study of $D_{sJ}^{(\ast )+}$ mesons decaying to $D^{\ast +}{K}_{\mathrm{S}}^0$ and $D^{\ast 0}{K}^{+}$ final states
• Estimating the production rates of D-wave charmed mesons via the semileptonic decays of bottom mesons