Journal
PHYSICAL REVIEW LETTERS
Volume 108, Issue 11, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.108.111602
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- CAPES (Brazil)
- CNPq (Brazil)
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- NSF (USA)
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- Rosatom (Russia)
- STFC [PP/E000355/1, ST/L001225/1, ST/F008015/1, ST/L001195/1, ST/H001085/2, ST/K000616/1, ST/J004820/1, ST/K000705/1, ST/K00140X/1, ST/H001069/2, ST/I002839/1, ST/G502412/1, PP/E002722/1, LHCb Upgrades, LHCb, ST/J005614/1, ST/K004646/1, ST/G005974/1, ST/H00100X/2, ST/H00100X/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/K001256/1, PP/E002722/1, ST/L001195/1, LHCb Upgrades, ST/L001225/1, ST/M001474/1, ST/G005974/1, ST/K001310/1 ATLAS, ST/H001069/2, ST/K000616/1, ST/I002839/1, ST/K001418/1, ST/F008015/1, ST/H001085/2, ST/K00140X/1, ST/K001310/1 LHCb, ST/G502412/1, ST/H00100X/1, PP/E000355/1, LHCb, ST/K000705/1, ST/J004820/1, ST/K001310/1 LHCb Upgrades, ST/J005614/1, ST/H00100X/2, ST/K001310/1, GRIDPP, ST/K001310/1 ATLAS Upgrades, 1208164] Funding Source: researchfish
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A search for time-integrated CP violation in D-0 -> h(-)h(+) (h = K, pi) decays is presented using 0.62 fb(-1) of data collected by LHCb in 2011. The flavor of the charm meson is determined by the charge of the slow pion in the D*(+) -> D-0 pi(+) and D*(-) -> (D) over bar (0)pi(-) decay chains. The difference in CP asymmetry between D-0 -> K-K+ and D-0 -> pi(-)pi(+), Delta A(CP) A(CP)(K-K+) - A(CP)(pi(-)pi(+)), is measured to be [-0.82 +/- 0.21(stat) +/- 0.11(syst) +/-]%. This differs from the hypothesis of CP conservation by 3.5 standard deviations.
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