This title appears in the Scientific Report :
2019
Please use the identifier:
http://dx.doi.org/10.1088/1674-1137/43/1/014102 in citations.
Please use the identifier: http://hdl.handle.net/2128/22115 in citations.
Double heavy tri-hadron bound state via delocalized π bond
Double heavy tri-hadron bound state via delocalized π bond
The number of exotic candidates that are beyond the conventional quark model has increased dramatically over recent decades. Some of these can be viewed as analogues of the deuteron. Similarly, the existence of the triton indicates that bound states formed by three hadrons could also exist. To illus...
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Personal Name(s): | Ma, Li (Corresponding author) |
---|---|
Wang, Qian / Meißner, Ulf-G. | |
Contributing Institute: |
Theorie der Starken Wechselwirkung; IAS-4 Theorie der starken Wechselwirkung; IKP-3 |
Published in: | Chinese physics / C High energy physics and nuclear physics C, 43 (2019) 1, S. 014102 - |
Imprint: |
Bristol [u.a.]
IOP Publ.
2019
|
DOI: |
10.1088/1674-1137/43/1/014102 |
Document Type: |
Journal Article |
Research Program: |
TRR 110: Symmetrien und Strukturbildung in der Quantenchromodynamik Computational Science and Mathematical Methods |
Link: |
Restricted OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/22115 in citations.
The number of exotic candidates that are beyond the conventional quark model has increased dramatically over recent decades. Some of these can be viewed as analogues of the deuteron. Similarly, the existence of the triton indicates that bound states formed by three hadrons could also exist. To illustrate this possibility, we study the DD*K and $B{B}^{* }\bar{K}$ systems using the Born-Oppenheimer approximation. To leading order, only one-pion exchange potentials are considered. This means that the three constituents share one virtual pion. This is similar to the role of the delocalized π bond for the formation of benzene in chemistry. After solving the Schrödinger equation, we find two three-body DD*K and $B{B}^{* }\bar{K}$ bound states with masses ${4317.92}_{-4.32}^{+3.66}\,{\rm{MeV}}$ and ${11013.65}_{-8.84}^{+8.49}\,{\rm{MeV}}$, respectively. The masses of their $D{\bar{D}}^{* }K$ and $B{\bar{B}}^{* }\bar{K}$ analogues are ${4317.92}_{-6.55}^{+6.13}\,{\rm{MeV}}$ and ${11013.65}_{-9.02}^{+8.68}\,{\rm{MeV}}$, respectively. From the experimental side, the $D{\bar{D}}^{* }K$ bound state could be found by analyzing the current world data on the $B\to J/\psi \pi \pi K$ process, by focusing on the J/ψ π K channel. |