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High Energy Physics - Experiment

arXiv:1311.3411 (hep-ex)
[Submitted on 14 Nov 2013 (v1), last revised 16 Nov 2013 (this version, v2)]

Title:Measurements of strong phase in $D^0\to Kπ$ decay and $y_\mathrm{CP}$ at BESIII

Authors:Xiao-Rui Lu (UCAS) (for the BESIII Collaboration)
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Abstract:In this paper, I report the preliminary results of the strong phase difference $\cos\delta_{K\pi}$ between the doubly Cabibbo-suppressed process $\overline{D}{}^0\to K^- \pi^+$ and Cabibbo-favored $D^0\to K^- \pi^+$ at BESIII. In addition, the preliminary results of the $D^0$-$\overline{D}{}^0$ mixing parameter $y_\mathrm{CP}$ by analyzing $CP$-tagged semileptonic $D$ decays are presented. These measurements were carried out based on the quantum-correlated technique in studying the process of $D^0\overline{D}{}^0$ pair productions of 2.92 fb$^{-1}$ $e^+e^-$ collision data collected with the BESIII detector at $\sqrt{s}$ = 3.773 GeV.
Comments: minor change; to appear in the proceedings of The 6th International Workshop on Charm Physics (CHARM 2013)
Subjects: High Energy Physics - Experiment (hep-ex); High Energy Physics - Phenomenology (hep-ph)
Cite as: arXiv:1311.3411 [hep-ex]
  (or arXiv:1311.3411v2 [hep-ex] for this version)
  https://doi.org/10.48550/arXiv.1311.3411

Submission history

From: Xiao-Rui Lu [view email]
[v1] Thu, 14 Nov 2013 08:23:47 UTC (312 KB)
[v2] Sat, 16 Nov 2013 05:35:16 UTC (312 KB)
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