TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Henry, L.
AU  - Jashal, B. K.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Remon Alepuz, C.
AU  - Ruiz Vidal, J.
PY  - 2021
DA  - 2021//
TI  - Measurement of CP asymmetry in D-0 -> KS0 KS0 decays
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - L031102 - 11pp
VL  - 104
IS  - 3
PB  - Amer Physical Soc
AB  - A measurement of the CP asymmetry in D-0 -> (KSKS0)-K-0 decays is reported, based on a data sample of proton-proton collisions collected by the LHCb experiment from 2015 to 2018, corresponding to an integrated luminosity of 6 fb(-1). The flavor of the D-0 candidate is determined using the charge of the D-*+/- meson, from which the decay is required to originate. The D-0 -> K+K- decay is used as a calibration channel. The time-integrated CP asymmetry for the D-0 -> (KSKS0)-K-0 mode is measured to be A(CP)(D-0 -> (KSKS0)-K-0) = (-3.1 +/- 1.2 +/- 0.4 +/- 0.2), where the first uncertainty is statistical, the second is systematic, and the third is due to the uncertainty on the CP asymmetry of the calibration channel. This is the most precise determination of this quantity to date.
SN  - 2470-0010
UR  - https://arxiv.org/abs/2105.01565
UR  - https://doi.org/10.1103/PhysRevD.104.L031102
DO  - 10.1103/PhysRevD.104.L031102
LA  - English
N1  - WOS:000692072800012
ID  - LHCbCollaborationAaij_etal2021
ER  -