Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 7, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP07(2014)041
Keywords
CP violation; Charm physics; Flavor physics; Hadron-Hadron Scattering
Categories
Funding
- CERN
- CAPES
- CNPq
- FAPERJ
- FINEP (Brazil)
- NSFC (China)
- Region Auvergne (France)
- BMBF
- DFG
- HGF
- MPG (Germany)
- SFI (Ireland)
- INFN (Italy)
- FOM (The Netherlands)
- NWO (The Netherlands)
- SCSR (Poland)
- MEN/IFA (Romania)
- MinES
- Rosatom
- RFBR
- NRC Kurchatov Institute (Russia)
- MinECo
- XuntaGal
- GENCAT (Spain)
- SNSF
- SER (Switzerland)
- NASU (Ukraine)
- STFC
- Royal Society (United Kingdom)
- NSF (U.S.A.)
- EPLANET
- Marie Curie Actions
- IN2P3 (France)
- KIT
- BMBF (Germany)
- NWO
- SURF (The Netherlands)
- PIC (Spain)
- GridPP (United Kingdom)
- ERC
- [CNRS/IN2P3]
- Science and Technology Facilities Council [ST/M001474/1, 1096173, LHCb Upgrades, ST/L001195/1, ST/K001604/1 LHCb, ST/K001361/1 ATLAS, ST/K001604/1 SuperNEMO, ST/M000761/1, ST/K001256/1, 1299204, ST/K001604/1 CMS Upgrade, 1415632, ST/K001302/1, ST/K001361/1, 1225314, ST/H001093/1, ST/L00352X/1, ST/L003112/1, ST/K001361/1 LHCb Upgrades, PP/E000347/1, ST/J004855/1, ST/K003410/1, ST/I000097/1, ST/K001604/1 LHCb Upgrades, ST/K001604/1 GRIDPP, ST/H00100X/2, ST/L006146/1, ST/K502236/1, ST/K000705/1, ST/H006737/1, ST/K001310/1 LHCb Upgrades, 1369397, ST/K001604/1 DMUK, ST/L001144/1, 1225304, ST/K003534/1, ST/K001604/1 MICE/UKNF, ST/K001310/1, ST/J004332/1, ST/L003538/1, ST/G005974/1, ST/H001026/2, 1416165, ST/K001310/1 ATLAS, ST/K001361/1 MINOS/MINOS+, ST/H001069/2, ST/H001026/1, ST/M001431/1, ST/K003593/1 GRIDPP, ST/K00137X/1, ST/L006340/1, ST/K001604/1 T2K, ST/H001093/2, ST/K001418/1, ST/J005495/1, ST/K001604/1, ST/F007094/1, ST/K00140X/1, ST/K001310/1 LHCb, ST/K001361/1 LHCb, ST/I003576/1, ST/H00100X/1, PP/E000355/1, PP/E003095/1, LHCb, 1208164, ST/K003534/1 GRIDPP, ST/K001361/1 ATLAS Upgrades, ST/K00140X/1 LHCb, ST/K001310/1 ATLAS Upgrades, ST/L003392/1, ST/K00073X/1, GRIDPP, ST/I505572/1] Funding Source: researchfish
- STFC [ST/H00100X/1, ST/L001144/1, ST/H00100X/2, PP/E000347/1, ST/K001604/1, ST/G005974/1, ST/H001026/2, ST/K00137X/1, ST/K00073X/1, ST/K003410/1, ST/H001093/2, ST/M001431/1, ST/K502236/1, ST/J004332/1, LHCb, ST/I505572/1, LHCb Upgrades, ST/L003112/1, ST/L006340/1, ST/K001361/1, ST/I000097/1, ST/F007094/1, ST/H001069/2, ST/M000761/1, ST/L006146/1, ST/L00352X/1, ST/K003534/1, ST/K001302/1, PP/E003095/1, ST/J005495/1, ST/K00140X/1, ST/L003538/1, ST/K000705/1, ST/H006737/1, ST/H001026/1, ST/L001195/1, ST/I003576/1, ST/J004855/1, PP/E000355/1, ST/L003392/1, ST/H001093/1] Funding Source: UKRI
- Direct For Mathematical & Physical Scien
- Division Of Physics [1205805] Funding Source: National Science Foundation
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Time-integrated CP asymmetries in D-0 decays to the final states K- K+ and pi(-) pi(+) are measured using proton-proton collisions corresponding to 3 fb(-1) of integrated luminosity collected at centre-of-mass energies of 7 TeV and 8 TeV. The D-0 mesons are produced in semileptonic b-hadron decays, where the charge of the accompanying muon is used to determine the initial flavour of the charm meson. The difference in CP asymmetries between the two final states is measured to be Delta A(CP) = A(CP)(K- K+) - A(CP)(pi(-) pi(+)) = (+0.14 +/- 0.16 (stat) +/- 0.08 (syst))% . A measurement of A(CP)(K- K+) is obtained assuming negligible CP violation in charm mixing and in Cabibbo-favoured D decays. It is found to be A(CP)(K- K+) = (-0.06 +/- 0.15 (stat) +/- 0.10 (syst))% , where the correlation coefficient between Delta A(CP) and A(CP)(K- K+) is rho = 0.28. By combining these results, the CP asymmetry in the D-0 -> pi(-) pi(+) channel is A(CP)(pi(-) pi(+)) = (-0.20 +/- 0.19 (stat) +/- 0.10 (syst))%.
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