Journal
PHYSICAL REVIEW D
Volume 76, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.76.034007
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We investigate the enhancement in the D-0(D) over bar (0)pi(0) final state with the mass M=3875.2 +/- 0.7(-1.6)(+0.3)+/- 0.8 MeV found recently by the Belle Collaboration in the B -> KD0(D) over bar (0)pi(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(D) over bar (0)pi(0) mode and for the pi(+)pi(-)J/psi mode of the X(3872). Only if the X(3872) is a virtual state in the D-0(D) over bar (*0) channel do the data on the new enhancement comply with those on the X(3872). In our fits, the mass distribution in the D-0(D) over bar (*0) mode exhibits a peak at 2-3 MeV above the D-0(D) over bar (*0) threshold, with a distinctive non-Breit-Wigner shape.
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