Journal
PHYSICAL REVIEW D
Volume 97, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.97.031101
Keywords
-
Funding
- CERN
- CAPES (Brazil)
- CNPq (Brazil)
- FAPERJ (Brazil)
- FINEP (Brazil)
- MOST (China)
- NSFC (China)
- CNRS/IN2P3 (France)
- BMBF (Germany)
- DFG (Germany)
- MPG (Germany)
- INFN (Italy)
- NWO (Netherlands)
- MNiSW (Poland)
- NCN (Poland)
- MEN/IFA (Romania)
- MinES (Russia)
- FASO (Russia)
- MinECo (Spain)
- SNSF (Switzerland)
- SER (Switzerland)
- NASU (Ukraine)
- STFC (United Kingdom)
- NSF (USA)
- Alexander von Humboldt AvH Foundation (Germany)
- EPLANET (European Union)
- Marie Sklodowska-Curie Actions (European Union)
- ERC (European Union)
- ANR (France)
- Labex P2IO (France)
- ENIGMASS (France)
- OCEVU (France)
- Region Auvergne-Rhone-Alpes (France)
- RFBR (Russia)
- Yandex LLC (Russia)
- GVA (Spain)
- XuntaGal (Spain)
- GENCAT (Spain)
- Herchel Smith Fund (United Kingdom)
- Royal Society (United Kingdom)
- English-Speaking Union (United Kingdom)
- Leverhulme Trust (United Kingdom)
- Science and Technology Facilities Council [ST/N000250/1, 1565116, ST/N000455/1, LHCb Upgrades, 1416165, ST/K003410/1, ST/H006737/1, ST/J004332/1, ST/L003163/1, GRIDPP, 1397914, ST/N000463/1, LHCb, ST/N000242/1] Funding Source: researchfish
- STFC [1796908, ST/J004332/1, ST/N000455/1, ST/L003163/1, LHCb Upgrades, ST/N000242/1, ST/N000463/1, ST/H006737/1, ST/K003410/1, LHCb] Funding Source: UKRI
Ask authors/readers for more resources
We report measurements of charm-mixing parameters based on the decay-time-dependent ratio of D-0 -> K+pi(-) to D-0 -> K-pi(+) rates. The analysis uses a data sample of proton-proton collisions corresponding to an integrated luminosity of 5.0 fb(-1) recorded by the LHCb experiment from 2011 through 2016. Assuming charge-parity (CP) symmetry, the mixing parameters are determined to be x'(2) = (3.9 +/- 2.7) x 10(-5), y' = (5.28 +/- 0.52) x 10(-3), and R-D = (3.454 +/- 0.031) x 10(-3). Without this assumption, the measurement is performed separately for D-0 and (D) over bar (0) mesons, yielding a direct CP-violating asymmetry A(D) = (-0.1 +/- 9.1) x 10(-3), and magnitude of the ratio of mixing parameters 1.00 < vertical bar q/p vertical bar < 1.35 at the 68.3% confidence level. All results include statistical and systematic uncertainties and improve significantly upon previous single-measurement determinations. No evidence for CP violation in charm mixing is observed.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available