Journal
PHYSICAL REVIEW D
Volume 81, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.81.036014
Keywords
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Funding
- National Natural Science Foundation of China [10675022, 10975018]
- Beijing Normal University
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We analyze the observed state D-s0*(2317)+ in the Bethe-Salpeter approach. Assuming that D-s0*(2317)+ is an S-wave DK molecular bound state, we establish the Bethe-Salpeter equation for D-s0*(2317)+. With the kernel induced by rho and omega exchange diagrams, we solve the Bethe-Salpeter equation numerically and find that the bound state of DK indeed can exist. We also calculate the decay width of the isospin-violating mode D-s0*(2317)+ -> D-s(+) pi(0) through exchanging vector mesons D* and K* including the eta - pi(0) mixing effect which gives important contribution to the decay width. We find that the decay width is smaller than the resolution of the experimental detector.
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