Ambiversion of X(3872)

An analysis including most recent Belle data on X(3872) is performed, using coupled channel Flatté formula. A third sheet pole close to but belowD0D∗0 threshold is found, besides the bound state/virtual state pole discussed in previous literature. The co-existence of two poles near the D0D∗0 thresho...

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Bibliographic Details
Published inPhysics letters. B Vol. 680; no. 5; pp. 453 - 458
Main Authors Zhang, Ou, Meng, C., Zheng, H.Q.
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier B.V 12.10.2009
Elsevier
Subjects
Charmonium
Exact sciences and technology
formula omitted
Mesonic molecule
Nuclear physics
Physics
The physics of elementary particles and fields
X
13.25.Gv
14.40.Lb
Mesonic molecule
13.20.He
Charmonium
Bound state
Virtual states
Virtual bound state
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Summary:An analysis including most recent Belle data on X(3872) is performed, using coupled channel Flatté formula. A third sheet pole close to but belowD0D∗0 threshold is found, besides the bound state/virtual state pole discussed in previous literature. The co-existence of two poles near the D0D∗0 threshold indicates that the X(3872) may be of ordinary cc¯23P1 state origin, distorted by strong coupled channel effects. The latter manifests itself as a molecular bound state (or a virtual state).
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2009.09.033