Possible Interpretations of $D_{sJ}^{+}(2632)$ If It Really Exists

Abstract

We analyze various possible interpretations of the narrow state $D_{sJ}^{+}(2632)$ observed by SELEX Collaboration recently, which lies above threshold and has abnormal decay pattern. These interpretations include: (1) several versions of tetraquarks; (2) conventional $c\bar{s}$ meson such as the first radial excitation of $D_s(2112)$ with abnormally large SU(3) symmetry breaking; (3) conventional $c\bar{s}$ meson with abnormally large ${\eta }_1$ coupling; (4) heavy hybrid meson. We discuss the physical implications of each interpretation. For example, if the existence of $D_{sJ}^{+}(2632)$ is confirmed as the first radial excitation of $D_s(2112)$ by other experiments, it will be helpful to look for (1) its SU(3) flavor partners $D_J^{0,+}(2530)$; (2) its B-meson analogues $B_J^{0,+}(5840),B_{sJ}^{+}(5940)$; (3) S-wave two pion decay modes.

References in corpus (24)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Observation of a Narrow Meson Decaying to Ds+pi0 at a Mass of 2.32 GeV/c^2
• Observation of a Narrow Resonance of Mass 2.46 GeV/c^2 Decaying to D_s^*+ pi^0 and Confirmation of the D_sJ^* (2317) State
• Chiral Multiplets of Heavy-Light Mesons
• Observation of the DsJ(2317) and DsJ(2457) in B decays
• B Decays as Spectroscope for Charmed Four-quark States
• Understanding $D_{sJ}(2317)$
• Measurements of the $D_{sJ}$ resonance properties
• A Comprehensive Four-Quark Interpretation of D_s(2317), D_s(2457) and D_s(2632)
• Understanding the $D_{sJ}^{+}(2317)$ and $D_{sJ}^{+}(2460)$ with Sum Rules in HQET
• Excited Charmed Mesons: Observations, Analyses and Puzzles
• Is the anomalous decay ratio of D_{sJ}(2632) due to isospin breaking?
• Options for the SELEX state D$_{s\J}^+(2632)$
• Regge Trajectories Analysis to DsJ(2317), DsJ(2460) and DsJ(2632) Mesons
• Multichannel calculation for Ds* vector states and the Ds(2632) resonance
• $D_{sJ}^{+}(2632)$: An Excellent Candidate of Tetraquarks
• A note on possible interpretations for the $D_{SJ}^{+}(2632)$ observed by SELEX
• The masses and decay widths of heavy hybrid mesons
• Observation of a Narrow Resonance of Mass 2.46 GeV/c^2 in the D_s^*+π^0 Final State, and Confirmation of the D_sJ^*(2317)
• Recent results from Belle
• Status of chiral doublers of heavy-light hadrons in light of recent BaBar Cleo, Belle and Selex D_s states
• Is the D_sJ(2632) Meson a Cryptoexotic Tetraquark Baryonium State?
• On tetraquark meson states
• Charmed scalar mesons and related

Cited by in corpus (5)

• The Possible Interpretations of Y(4260)
• Charm meson resonances and D to V semileptonic form factors
• Charm meson resonances in $D\to P\ell \nu$ decays
• Is $D_{sJ}^{+}(2632)$ the first radial excitation of $D_s^{\ast }(2112)$?
• The newly observed state $D_{s0}(2590{)}^{+}$