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Abstract / Description of output
The π΅+βπ·+π β’π·βπ β’πΎ+ decay is observed for the first time using proton-proton collision data collected by the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9ββfbβ1. Its branching fraction relative to that of the π΅+βπ·+β’π·ββ’πΎ+ decay is measured to be β¬β‘(π΅+βπ·+π β’π·βπ β’πΎ+)β¬β‘(π΅+βπ·+β’π·ββ’πΎ+)=0.525Β±0.033Β±0.027Β±0.034, where the first uncertainty is statistical, the second systematic, and the third is due to the uncertainties on the branching fractions of the π·Β±π βπΎββ’πΎΒ±β’πΒ± and π·Β±βπΎββ’πΒ±β’πΒ± decays. This measurement fills an experimental gap in the knowledge of the family of Cabibbo-favored
Β―πβΒ―πβ’πβ’Β―π transitions and opens the path for unique studies of spectroscopy in future.
Β―πβΒ―πβ’πβ’Β―π transitions and opens the path for unique studies of spectroscopy in future.
| Original language | English |
|---|---|
| Article number | 034012 |
| Pages (from-to) | 1-14 |
| Number of pages | 14 |
| Journal | Physical Review D |
| Volume | 108 |
| Issue number | 3 |
| Early online date | 1 Aug 2023 |
| DOIs | |
| Publication status | Published - 14 Aug 2023 |
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LHCb Ugrade: Beyond the Energy Frontier
Playfer, S., Clarke, P., Eisenhardt, S., Muheim, F. & Needham, M.
1/10/14 β 31/03/21
Project: Research