Abstract
A measurement of four branching-fraction ratios for three-body decays of B mesons involving two open-charm hadrons in the final state is presented. Run 1 and Run 2 pp collision data are used, recorded by the LHCb experiment at centre-of-mass energies 7, 8, and 13 TeV and corresponding to an integrated luminosity of 9 fb−1. The measured branching-fraction ratios are
B(B+→D∗+D−K+)B(B+→D¯0D0K+)=0.517±0.015±0.013±0.011,
B(B+→D∗−D+K+)B(B+→D¯0D0K+)=0.577±0.016±0.013±0.013,
B(B0→D∗−D0K+)B(B0→D−D0K+)=1.754±0.028±0.016±0.035,
B(B+→D∗+D−K+)B(B+→D∗−D+K+)=0.907±0.033±0.014,
where the first of the uncertainties is statistical, the second systematic, and the third is due to the uncertainties on the D-meson branching fractions. These are the most accurate measurements of these ratios to date.
Original language | English |
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Article number | 139 |
Journal | Journal of High Energy Physics |
Volume | 2020 |
Issue number | 12 |
DOIs | |
Publication status | Published - 21 Dec 2020 |
Keywords
- B physics
- Branching fraction
- Flavor physics
- Hadron-Hadron scattering (experiments)
ASJC Scopus subject areas
- Nuclear and High Energy Physics