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Abstract / Description of output
The B+ → Jψη′K+ decay is observed for the first time using proton-proton
collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb−1. The branching fraction of this decay is measured relative to the known branching fraction of the B+ → ψ(2S)K+ decay and found to be
B(B+ → Jψη′K+)
B(B+ → ψ(2S)K+) = (4.91 ± 0.47 ± 0.29 ± 0.07) × 10−2,
where the first uncertainty is statistical, the second is systematic and the third is related to external branching fractions. A first look at the J/ψη′ mass distribution is performed and no signal of intermediate resonances is observed.
collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb−1. The branching fraction of this decay is measured relative to the known branching fraction of the B+ → ψ(2S)K+ decay and found to be
B(B+ → Jψη′K+)
B(B+ → ψ(2S)K+) = (4.91 ± 0.47 ± 0.29 ± 0.07) × 10−2,
where the first uncertainty is statistical, the second is systematic and the third is related to external branching fractions. A first look at the J/ψη′ mass distribution is performed and no signal of intermediate resonances is observed.
| Original language | English |
|---|---|
| Article number | 174 |
| Pages (from-to) | 1-26 |
| Number of pages | 26 |
| Journal | Journal of High Energy Physics |
| Volume | 2023 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 25 Aug 2023 |
Keywords / Materials (for Non-textual outputs)
- B Physics
- Branching fraction
- Charm Physics
- Hadron-Hadron Scattering