@article{587836f21be34ef4ba2c29beb337157f,
title = "Updated measurement of decay-time-dependent CP asymmetries in D0 →k+K- A nd D0 →π+π-decays",
abstract = "A search for decay-time-dependent charge-parity (CP) asymmetry in D0→K+K- A nd D0→π+π-decays is performed at the LHCb experiment using proton-proton collision data recorded at a center-of-mass energy of 13 TeV, and corresponding to an integrated luminosity of 5.4 fb-1. The D0 mesons are required to originate from semileptonic decays of b hadrons, such that the charge of the muon identifies the flavor of the neutral D meson at production. The asymmetries in the effective decay widths of D0 and D0 mesons are determined to be AΓ(K+K-)=(-4.3±3.6±0.5)×10-4 and AΓ(π+π-)=(2.2±7.0±0.8)×10-4, where the uncertainties are statistical and systematic, respectively. The results are consistent with CP symmetry and, when combined with previous LHCb results, yield AΓ(K+K-)=(-4.4±2.3±0.6)×10-4 and AΓ(π+π-)=(2.5±4.3±0.7)×10-4.",
author = "\{LHCb Collaboration\} and R. Aaij and Beteta, \{C. Abell{\'a}n\} and T. Ackernley and B. Adeva and M. Adinolfi and H. Afsharnia and Aidala, \{C. A.\} and S. Aiola and Z. Ajaltouni and S. Akar and P. Albicocco and J. Albrecht and F. Alessio and M. Alexander and Albero, \{A. Alfonso\} and G. Alkhazov and Cartelle, \{P. Alvarez\} and Alves, \{A. A.\} and S. Amato and Y. Amhis and L. An and L. Anderlini and G. Andreassi and M. Andreotti and F. Archilli and P. D'Argent and Romeu, \{J. Arnau\} and A. Artamonov and M. Artuso and K. Arzymatov and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and Back, \{J. J.\} and S. Baker and V. Balagura and W. Baldini and A. Baranov and Barlow, \{R. J.\} and S. Barsuk and W. Barter and M. Bartolini and F. Baryshnikov and G. Bassi and V. Batozskaya and B. Batsukh and A. Battig and F. Fleuret and E. Maurice",
note = "Publisher Copyright: {\textcopyright} 2020 CERN. {\textcopyright} 2020 CERN, for the LHCb Collaboration. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"} Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP.",
year = "2020",
month = jan,
day = "13",
doi = "10.1103/PhysRevD.101.012005",
language = "English",
volume = "101",
journal = "Physical Review D",
issn = "2470-0010",
number = "1",
}