RT Journal Article
T1 Measurement of indirect CP asymmetries in D0 → K−K+ and D0 → π−π+ decays using semileptonic B decays
A1 LHCb Collaboration, 
A1 Adeva Andany, Bernardo
A1 Dosil Suárez, Álvaro
A1 Fernández Albor, Víctor Manuel
A1 Gallas Torreira, Abraham Antonio
A1 García Pardiñas, Julián
A1 Hernando Morata, José Ángel
A1 Romero Vidal, Antonio
A1 Saborido Silva, Juan José
A1 Sanmartín Sedes, Brais
A1 Santamarina Ríos, Cibrán
A1 Vázquez Regueiro, Pablo
A1 Vázquez Sierra, Carlos
A1 Vieites Díaz, María
K1 CP violation
K1 Charm physics
K1 Lifetime
K1 Hadron-Hadron Scattering
AB Time-dependent CP asymmetries in the decay rates of the singly Cabibbo-suppressed decays D0 → K−K+ and D0 → π−π+ are measured in pp collision data corresponding to an integrated luminosity of 3.0 fb−1 collected by the LHCb experiment. The D0 mesons are produced in semileptonic b-hadron decays, where the charge of the accompanying muon is used to determine the initial state as D0 or D¯0. The asymmetries in effective lifetimes between D0 and D¯0 decays, which are sensitive to indirect CP violation, are determined to beAΓ(K−K+)=(−0.134±0.077−0.026−0.034)%,AΓ(π−π+)=(−0.092±0.145−0.025−0.033)%,where the first uncertainties are statistical and the second systematic. This result is in agreement with previous measurements and with the hypothesis of no indirect CP violation in D0 decays.
PB Springer
SN 1029-8479
YR 2015
FD 2015
LK http://hdl.handle.net/10347/22061
UL http://hdl.handle.net/10347/22061
LA eng
NO Aaij, R., Adeva, B., Adinolfi, M. et al. Measurement of indirect CP asymmetries in D0 → K−K+ and D0 → π−π+ decays using semileptonic B decays. J. High Energ. Phys. 2015, 43 (2015). https://doi.org/10.1007/JHEP04(2015)043
DS Minerva
RD 23 abr 2026