Measurements of Indirect Asymmetries in and Decays
R Aaij, B Adeva, M Adinolfi, C Adrover, A Affolder… - Physical review …, 2014 - APS
R Aaij, B Adeva, M Adinolfi, C Adrover, A Affolder, Z Ajaltouni, J Albrecht, F Alessio…
Physical review letters, 2014•APSA study of indirect CP violation in D 0 mesons through the determination of the parameter A
Γ is presented using a data sample of pp collisions, corresponding to an integrated
luminosity of 1.0 fb− 1, collected with the LHCb detector and recorded at the center-of-mass
energy of 7 TeV at the LHC. The parameter A Γ is the asymmetry of the effective lifetimes
measured in decays of D 0 and D¯ 0 mesons to the CP eigenstates K− K+ and π− π+. Fits
to the data sample yield A Γ (KK)=(− 0.35±0.62±0.12)× 10− 3 and A Γ (π …
Γ is presented using a data sample of pp collisions, corresponding to an integrated
luminosity of 1.0 fb− 1, collected with the LHCb detector and recorded at the center-of-mass
energy of 7 TeV at the LHC. The parameter A Γ is the asymmetry of the effective lifetimes
measured in decays of D 0 and D¯ 0 mesons to the CP eigenstates K− K+ and π− π+. Fits
to the data sample yield A Γ (KK)=(− 0.35±0.62±0.12)× 10− 3 and A Γ (π …
A study of indirect violation in mesons through the determination of the parameter is presented using a data sample of collisions, corresponding to an integrated luminosity of , collected with the LHCb detector and recorded at the center-of-mass energy of 7 TeV at the LHC. The parameter is the asymmetry of the effective lifetimes measured in decays of and D¯0 mesons to the eigenstates and . Fits to the data sample yield AΓ(KK)=(−0.35±0.62±0.12)×10−3 and , where the first uncertainties are statistical and the second systematic. The results represent the world’s best measurements of these quantities. They show no difference in between the two final states and no indication of violation.
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