期刊
PHYSICAL REVIEW LETTERS
卷 118, 期 26, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.118.261803
关键词
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资金
- CERN
- national agency: CAPES (Brazil)
- national agency: CNPq (Brazil)
- national agency: FINEP (Brazil)
- MOST (China)
- NSFC (China)
- CNRS/IN2P3 (France)
- BMBF (Germany)
- DFG (Germany)
- MPG (Germany)
- INFN (Italy)
- FOM (The Netherlands)
- NWO (The 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)
- AvH Foundation (Germany)
- EPLANET (European Union)
- Marie Sklodowska-Curie Actions (European Union)
- ERC (European Union)
- Conseil General de Haute-Savoie, Region Auvergne (France)
- Labex ENIGMASS, Region Auvergne (France)
- OCEVU, Region Auvergne (France)
- RFBR (Russia)
- Yandex LLC (Russia)
- GVA (Spain)
- XuntaGal (Spain)
- GENCAT (Spain)
- Herchel Smith Fund (United Kingdom)
- Royal Society (United Kingdom)
- Royal Commission for the Exhibition of 1851 (United Kingdom)
- Leverhulme Trust (United Kingdom)
- STFC [ST/G005974/1, ST/K003410/1, ST/J004332/1, LHCb, LHCb Upgrades, 1707993, ST/H006737/1, ST/N000331/1, 1708182, 1641747] Funding Source: UKRI
Asymmetries in the time-dependent rates of D-0 -> K+K- and D-0 -> pi(+)pi(-)decays are measured in a pp collision data sample collected with the LHCb detector during LHC Run 1, corresponding to an integrated luminosity of 3 fb(-1). The asymmetries in effective decay widths between D-0 and (D) over bar (0) decays, sensitive to indirect CP violation, are measured to be A(r)(K+K-) = (-0.30 +/- 0.32 0.10) x 10(-3) and A(r) pi(+)pi(-)) = (0.46 +/- 0.58 +/- 0.12) x 10(-3), where the first uncertainty is statistical and the second systematic. These measurements show no evidence for CP violation and improve on the precision of the previous best measurements by nearly a factor of two.
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