RT Journal Article T1 Measurement of the time-integrated CP asymmetry in D 0 → K 0S K 0S 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 Lucio Martínez, Miriam A1 Martínez Santos, Diego A1 Plo Casasus, Máximo 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 Flavor physics K1 Hadron-Hadron Scattering AB The time-integrated CP asymmetry in the decay D 0 → K 0S K 0S is measured using 3 fb−1 of proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The flavour of the D 0 meson is determined by use of the decay D *+ → D 0 π + and its charge conjugate mode. The result isACP=−0.029±0.052±0.022,where the first uncertainty is statistical and the second systematic. The result is consistent with Standard Model expectations and improves the uncertainty with respect to the only previous measurement of this quantity by more than a factor of three PB Springer YR 2015 FD 2015 LK http://hdl.handle.net/10347/21712 UL http://hdl.handle.net/10347/21712 LA eng NO Aaij, R., Adeva, B., Adinolfi, M. et al. Measurement of the time-integrated CP asymmetry in D 0 → K 0S K 0S decays. J. High Energ. Phys. 2015, 55 (2015). https://doi.org/10.1007/JHEP10(2015)055 DS Minerva RD 24 abr 2026