@Article{LHCbCollaborationAaij_etal2023,
author="LHCb Collaboration (Aaij, R. et al
and Jashal, B. K.
and Martinez-Vidal, F.
and Oyanguren, A.
and Remon Alepuz, C.
and Ruiz Vidal, J.",
title="Measurement of CP asymmetries in D-(s)(+) -> eta pi(+) and D-(s)(+) -> eta {\textquoteright}pi(+) decays",
journal="Journal of High Energy Physics",
year="2023",
publisher="Springer",
volume="04",
number="4",
pages="081--23pp",
optkeywords="Charm Physics; CP Violation; Flavour Physics; Hadron-Hadron Scattering",
abstract="Searches for CP violation in the decays D-(s)(+) -> eta pi(+) and D-(s)(+) -> eta{\textquoteright}pi(+) are performed using pp collision data corresponding to 6 fb(-1) of integrated luminosity collected by the LHCb experiment. The calibration channels D-(s)(+) -> phi pi(+) are used to remove production and detection asymmetries. The resulting CP-violating asymmetries are A(CP) (D+ -> eta pi(+)) = (0.34 +/- 0.66 +/- 0.16 +/- 0.05){\%}, A(CP) (D-s(+) -> eta pi(+)) = (0.32 +/- 0.51 +/- 0.12){\%}, A(CP) (D+ -> eta{\textquoteright}pi(+)) = (0.49 +/- 0.18 +/- 0.06 +/- 0.05){\%}, A(CP) (D-s(+) -> eta{\textquoteright}pi(+)) = (0.01 +/- 0.12 +/- 0.08){\%}, where the first uncertainty is statistical, the second is systematic and the third, relevant for the D+ channels, is due to the uncertainty on A(CP) (D+ -> phi pi(+)). These measurements, currently the most precise for three of the four channels considered, are consistent with the absence of CP violation. A combination of these results with previous LHCb measurements is presented.",
optnote="WOS:001022498600001",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5645), last updated on Fri, 15 Sep 2023 10:42:45 +0000",
issn="1029-8479",
doi="10.1007/JHEP04(2023)081",
opturl="https://arxiv.org/abs/2204.12228",
opturl="https://doi.org/10.1007/JHEP04(2023)081",
language="English"
}