RT Journal Article
T1 Measurement of the time-integrated CP asymmetry in D0 → K0SK0S decays
A1 LHCb Collaboration, 
A1 Adeva Andany, Bernardo
A1 Boente García, Óscar
A1 Borsato, Martino
A1 Chobanova, Veronika
A1 Cid Vidal, Xabier
A1 Dosil Suárez, Álvaro
A1 Fernández Prieto, Antonio
A1 Gallas Torreira, Abraham Antonio
A1 García Plana, Beatriz
A1 Lucio Martínez, Miriam
A1 Martínez Santos, Diego
A1 Plo Casasus, Máximo
A1 Prisciandaro, James J.
A1 Ramos Pernas, Miguel
A1 Romero Vidal, Antonio
A1 Saborido Silva, Juan José
A1 Sanmartín Sedes, Brais
A1 Santamarina Ríos, Cibrán
A1 Vázquez Regueiro, Pablo
A1 Vieites Díaz, María
K1 Charm physics
K1 CP violation
K1 Flavor physics
K1 Hadron-Hadron scattering (experiments)
AB A measurement of the time-integrated CP asymmetry in D0 → K0SK0S decays is reported. The data correspond to an integrated luminosity of about 2 fb−1 collected in 2015–2016 by the LHCb collaboration in pp collisions at a centre-of-mass energy of 13 TeV. The D0 candidate is required to originate from a D*+ → D0π+ decay, allowing the determination of the flavour of the D0 meson using the pion charge. The D0 → K+K− decay, which has a well measured CP asymmetry, is used as a calibration channel. The CP asymmetryfor D0 → K 0SK 0S is measured to beACP(D0→K0SK0S)=(4.3±3.4±1.0)%,where the first uncertainty is statistical and the second is systematic. This result is combined with the previous LHCb measurement at lower centre-of-mass energies to obtainACP(D0→K0SK0S)=(2.3±2.8±0.9)%.
PB Springer
SN 1029-8479
YR 2018
FD 2018
LK http://hdl.handle.net/10347/22301
UL http://hdl.handle.net/10347/22301
LA eng
NO Aaij, R., Adeva, B., Adinolfi, M. et al. Measurement of the time-integrated CP asymmetry in D0 → K0SK0S decays. J. High Energ. Phys. 2018, 48 (2018). https://doi.org/10.1007/JHEP11(2018)048
DS Minerva
RD 23 abr 2026