Novel charmonium and bottomonium spectroscopies due to deeply bound hadronic molecules from single pion exchange

被引：53

作者：

Close, Frank ^{[1
]}

Downum, Clark ^{[2
]}

Thomas, Christopher E. ^{[3
]}

机构：

[1] Univ Oxford, Rudolf Peierls Ctr Theoret Phys, Oxford OX1 3NP, England

[2] Univ Oxford, Clarendon Lab, Oxford OX1 3PU, England

[3] Jefferson Lab, Newport News, VA 23606 USA

来源：

PHYSICAL REVIEW D | 2010年 / 81卷 / 07期

关键词：

HEAVY MESONS; DECAYS;

D O I：

10.1103/PhysRevD.81.074033

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Pion exchange in S-wave between hadrons that are themselves in a relative S-wave is shown to shift energies by hundreds of MeV, leading to deeply bound quasimolecular states. In the case of charmed mesons D*, D-1 a spectroscopy arises consistent with enigmatic charmonium states observed above 4 GeV in e(+)e(-) annihilation. A possible explanation of Y(4260) -> psi pi pi and Y(4360) -> psi'pi pi is found. We give results for all isospin and charge-conjugation combinations, and comment on flavor exotic doubly charmed states and bottomonium analogs. A search in D (D) over bar3 pi is recommended to test this hypothesis. An exotic 1(-+) is predicted to occur in the vicinity of the Y(4260).

引用

页数：12

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