Reconciling the X(3872) with the near-threshold enhancement in the D^0\bar{D}^{*0} final state

Abstract

We investigate the enhancement in the D^0\bar{D}^0π^0 final state with the mass M=3875.2\pm 0.7^{+0.3}_{-1.6}\pm 0.8 MeV found recently by the Belle Collaboration in the B\to K D^0\bar{D}^0π^0 decay and test the possibility that this is yet another manifestation of the well-established resonance X(3872). We perform a combined Flatte analysis of the data for the D^0\bar{D}^0π^0 mode, and for the π^+π^- J/ψmode of the X(3872). Only if the X(3872) is a virtual state in the D^0\bar{D}^{*0} channel, the data on the new enhancement comply with those on the X(3872). In our fits, the mass distribution in the D^0\bar{D}^{*0} mode exhibits a peak at 2-3 MeV above the D^0\bar{D}^{*0} threshold, with a distinctive non-Breit-Wigner shape.

RevTeX4, 17 pages, some references updated and corrected, version published in Phys. Rev. D

References in corpus (1)

• Decays of the X(3872) and ${\chi }_{c1}(2P)$ charmonium

Cited by in corpus (12)

• Is X(3872) {\sl Really} a Molecular State?
• Estimate for the X(3872) to gamma J/psi decay width
• Line Shapes of the X(3872)
• Evidence that the Y(4660) is a f_0(980)psi' bound state
• How Resonances can synchronise with Thresholds
• The Effects of Charged Charm Mesons on the Line Shapes of the X(3872)
• Pionic transitions from X(3872) to chi_{cJ}
• Interpretations for the X(4160) observed in the double charm production at B factories
• Isospin properties of the X state near the D {\bar D}^{*} threshold
• An Estimate of the Partial Width for X(3872) into p p-bar
• How and when can one identify hadronic molecules in the baryon spectrum
• Exotic c c-bar Mesons