Search for Time-Dependent CP Violation in D^{0}→π^{+}π^{-}π^{0} Decays.



Aaij, R ORCID: 0000-0003-0533-1952, Abdelmotteleb, ASW, Abellan Beteta, C, Abudinén, F ORCID: 0000-0002-6737-3528, Ackernley, T ORCID: 0000-0002-5951-3498, Adefisoye, AA ORCID: 0000-0003-2448-1550, Adeva, B, Adinolfi, M ORCID: 0000-0002-1326-1264, Adlarson, P ORCID: 0000-0001-6280-3851, Agapopoulou, C
et al (show 1077 more authors) (2024) Search for Time-Dependent CP Violation in D^{0}→π^{+}π^{-}π^{0} Decays. Physical review letters, 133 (10). 101803-. ISSN 0031-9007, 1079-7114

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Abstract

A measurement of time-dependent CP violation in D^{0}→π^{+}π^{-}π^{0} decays using a pp collision data sample collected by the LHCb experiment in 2012 and from 2015 to 2018, corresponding to an integrated luminosity of 7.7  fb^{-1}, is presented. The initial flavor of each D^{0} candidate is determined from the charge of the pion produced in the D^{*}(2010)^{+}→D^{0}π^{+} decay. The decay D^{0}→K^{-}π^{+}π^{0} is used as a control channel to validate the measurement procedure. The gradient of the time-dependent CP asymmetry ΔY in D^{0}→π^{+}π^{-}π^{0} decays is measured to be ΔY=(-1.3±6.3±2.4)×10^{-4}, where the first uncertainty is statistical and the second is systematic, which is compatible with CP conservation.

Item Type: Article
Uncontrolled Keywords: LHCb Collaboration
Divisions: Faculty of Humanities and Social Sciences
Faculty of Science and Engineering
Faculty of Science and Engineering > School of Physical Sciences
Faculty of Humanities and Social Sciences > School of the Arts
Depositing User: Symplectic Admin
Date Deposited: 14 Oct 2024 07:31
Last Modified: 09 Dec 2024 10:58
DOI: 10.1103/physrevlett.133.101803
Open Access URL: https://journals.aps.org/prl/pdf/10.1103/PhysRevLe...
Related Websites:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3185040