HIGHLIGHTS
- who: P.-C. Chou and collaborators from the University of have published the article: Search for B0→X(3872)γ, in the Journal: (JOURNAL) of 19/07/2019
SUMMARY
In the case of B0 → J=ψγ, the branching fraction has been predicted to be 7.65 × 10-9 using QCD factorization and 4.5 × 10-7 when using a perturbative QCD (pQCD) approach. Currently, the upper limit for B0 → J=ψγ is 1.5 × 10-6 at 90% confidence level. Since X(3872) may, unlike the J=ψ, contain components other than pure charmonium, the branching fraction . . .
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