The newly observed open-charm states in quark model

Abstract

Comparing the measured properties of the newly observed open-charm states D(2550), D(2600), D(2750), D(2760), D_{s1}(2710), D_{sJ}(2860), and D_{sJ}(3040) with our predicted spectroscopy and strong decays in a constituent quark model, we find that: (1) the $D(2{}^1{S}_0)$ assignment to D(2550) remains open for its too broad width determined by experiment; (2) the D(2600) and $D_{s1}(2710)$ can be identified as the $2{}^3{S}_1$-$1{}^3{D}_1$ mixtures; (3) if the D(2760) and D(2750) are indeed the same resonance, they would be the $D(1{}^3{D}_3)$; otherwise, they could be assigned as the $D(1{}^3{D}_3)$ and $D_2^{\prime }(1D)$, respectively; (4) the $D_{sJ}(2860)$ could be either the $D_{s1}(2710)$'s partner or the $D_s(1{}^3{D}_3)$; and (5) both the $D_{s1}(2P)$ and $D_{s1}^{\prime }(2P)$ interpretations for the $D_{sJ}(3040)$ seem likely. The $E1$ and $M1$ radiative decays of these sates are also studied. Further experimental efforts are needed to test the present quarkonium assignments for these new open-charm states.

26 pages,7 figures, journal version

References in corpus (23)

• Observation of new resonances decaying to $D\pi$ and $D^{\ast }\pi$ in inclusive $e^{+}{e}^{-}$ collisions near $\sqrt{s}=$10.58 GeV
• $D_{sJ}(2860)$ and $D_{sJ}(2715)$
• Strong decays of heavy-light mesons in a chiral quark model
• Canonical Interpretation of the D_{sJ}(2860) and D_{sJ}(2690)
• Pionic Decays of $D_{sj}(2317)$, $D_{sj}(2460)$ and $B_{sj}(5718)$, $B_{sj}(5765)$
• $D_{sJ}(2860)$ resonance and the $s_{\ell }^P={\frac{5}{2}}^{-}$ $c\bar{s}$ ($c\bar{q}$) doublet
• D_{sJ}(2860) as the first radial excitation of the D_{s0}^*(2317)
• Canonical Charmonium Interpretation for Y(4360) and Y(4660)
• A Canonical Ds(2317)?
• B_{s1}(5830) and B_{s2}^*(5840)
• Newly observed D_{sJ}(3040) and the radial excitations of P-wave charmed-strange mesons
• Newly observed D(2550), D(2610), and D(2760) as 2S and 1D charmed mesons
• Strong decays of the newly observed $D(2550)$, $D(2600)$, $D(2750)$, and $D(2760)$
• Identifying $D_{sJ}(2700)$ through its decay modes
• Analysis of strong decays of the charmed mesons D(2550), D(2600), D(2750) and D(2760)
• $X(1835)$ and $\eta (1760)$ observed by the BES Collaboration
• Radial Excitations of Heavy Mesons
• Understanding masses of $c\bar{s}$ states in Regge phenomenology
• The $\eta (2225)$ observed by the BES Collaboration
• Towards the assignment for the $4^1{S}_0$ meson nonet
• A multiquark description of the $D_{sJ}(2860)$ and $D_{sJ}(2700)$
• D Wave Heavy Mesons
• Energies of B_s meson excited states - a lattice study

Cited by in corpus (1)

• Possible 2S and 1D charmed and charmed-strange mesons