Search for CP violation through an amplitude analysis of D-0 K+K-+- decays

Aaij, R, Beteta, C Abellan, Adeva, B, Adinolfi, M, Aidala, CA, Ajaltouni, Z, Akar, S, Albicocco, P, Albrecht, J, Alessio, F
et al (show 841 more authors) (2019) Search for CP violation through an amplitude analysis of D-0 K+K-+- decays. JOURNAL OF HIGH ENERGY PHYSICS, 02 (2). 126-.

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A search for $CP$ violation in the Cabibbo-suppressed $D^0 \rightarrow K^+ K^- \pi^+ \pi^-$ decay mode is performed using an amplitude analysis. The measurement uses a sample of $pp$ collisions recorded by the LHCb experiment during 2011 and 2012, corresponding to an integrated luminosity of 3.0 fb$^{-1}$. The $D^0$ mesons are reconstructed from semileptonic $b$-hadron decays into $D^0\mu^- X$ final states. The selected sample contains more than 160000 signal decays, allowing the most precise amplitude modelling of this $D^0$ decay to date. The obtained amplitude model is used to perform the search for $CP$ violation. The result is compatible with $CP$ symmetry, with a sensitivity ranging from 1% to 15% depending on the amplitude considered.

Item Type: Article
Additional Information: All figures and tables, along with any supplementary material and additional information, are available at
Uncontrolled Keywords: Charm physics, CP violation, Flavor physics, Hadron-Hadron scattering (experiments)
Depositing User: Symplectic Admin
Date Deposited: 09 May 2019 09:46
Last Modified: 19 Jan 2023 00:48
DOI: 10.1007/JHEP02(2019)126
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