Abstract
The branching fractions of the doubly Cabibbo-suppressed decays D+→K−K+K+, D+→π−π+K+ and Ds+→π− K+K+ are measured using the decays D+→K−π+π+ and Ds+→K− K+π+ as normalisation channels. The measurements are performed using proton-proton collision data collected with the LHCb detector at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 2.0 fb−1 . The results are
ℬ(D+→K−K+K+)/ℬ(D+→K−π+π+) = (6.541±0.025±0.042)×10−4,
ℬ(D+→π−π+K+)/ℬ(D+→K−π+π+) = (5.231±0.009±0.023)×10−3,
ℬ(Ds+→π−K+K+)/ℬ(Ds+→K−K+π+) = (2.372±0.024±0.025)×10−3,
where the uncertainties are statistical and systematic, respectively. These are the most precise measurements up to date.
Original language | English |
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Article number | 176 |
Number of pages | 24 |
Journal | Journal of High Energy Physics |
Volume | 2019 |
Issue number | 3 |
DOIs | |
Publication status | Published - 27 Mar 2019 |
Keywords
- Branching fraction
- Charm physics
- Flavor physics
- Hadron-Hadron scattering (experiments)
ASJC Scopus subject areas
- Nuclear and High Energy Physics