On the decays B → K(⁎)+ leptonium
We determine the rates of the B meson decays into a K(⁎) and an ℓ+ℓ− bound state, the leptonium, where ℓ=e,μ,τ. The two spin states of the leptonium, the spin singlet and the spin triplet, couple to the axial current and to the vector current, respectively, thus probing different helicity structures...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2018-07-01
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| Series: | Nuclear Physics B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0550321318301391 |