Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10725733 | Physics Letters B | 2010 | 4 Pages |
Abstract
Using the QCD sum rules we test if the new narrow structure, the X(4350) recently observed by the Belle Collaboration, can be described as a JPC=1â+ exotic DsâDs0â molecular state. We consider the contributions of condensates up to dimension eight, we work at leading order in αs and we keep terms which are linear in the strange quark mass ms. The mass obtained for such state is mDsâDs0â=(5.05±0.19)GeV. We also consider a molecular 1â+, DâD0â current and we obtain mDâD0â=(4.92±0.08)GeV. We conclude that it is not possible to describe the X(4350) structure as a 1â+DsâDs0â molecular state.
Related Topics
Physical Sciences and Engineering
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Nuclear and High Energy Physics
Authors
Raphael M. Albuquerque, Jorgivan M. Dias, Marina Nielsen,