Measurement of the neutral $D$ meson mixing parameters in a time-dependent amplitude analysis of the $D^0\to\pi^+\pi^-\pi^0$ decay

Abstract : We measure the $D^0 - {\bar{D}}^0$ mixing parameters using a time-dependent amplitude analysis of the decay $D^0\to\pi^+\pi^-\pi^0$. The data were recorded with the BABAR detector at center-of-mass energies at and near the $\Upsilon(4S)$ resonance, and correspond to an integrated luminosity of approximately 468.1 ${\rm fb}^{-1}$. The neutral $D$ meson candidates are selected from $D^{*}(2010)^+\to D^0 \pi_s^+$ decays where the flavor at the production is identified by the charge of the low momentum pion, $\pi_s^+$. The measured mixing parameters are $x = (1.5\pm1.2\pm0.6) \%$ and $y = (0.2\pm0.9\pm0.5) \%$, where the quoted uncertainties are statistical and systematic, respectively.
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Physical Review D, American Physical Society, 2016, 93, pp.112014. 〈10.1103/PhysRevD.93.112014〉
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http://hal.in2p3.fr/in2p3-01302530
Contributeur : Claudine Bombar <>
Soumis le : jeudi 14 avril 2016 - 15:06:05
Dernière modification le : jeudi 11 janvier 2018 - 06:14:22

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J.-P. Lees, V. Poireau, V. Tisserand, N. Arnaud, M. Davier, et al.. Measurement of the neutral $D$ meson mixing parameters in a time-dependent amplitude analysis of the $D^0\to\pi^+\pi^-\pi^0$ decay. Physical Review D, American Physical Society, 2016, 93, pp.112014. 〈10.1103/PhysRevD.93.112014〉. 〈in2p3-01302530〉

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